Test/Measure/Experiment
Testing and measuring related tools and equipment
We found this little unit great to measure our incoming solar power versus outgoing battery load on a second unit
Coming Soon. Login and add this item to your wishlist to be notified when stock arrives. Pricing is estimated at this stage.
Charger Docter - USB Voltage and Current Meter (USB Docter single)
Description:
You can use this device from 3.5-7VDC input voltage (although most USB devices tend to hover around 4.75 to 5.25) and up to 3A of current. It flips between voltage and current readouts every 3 seconds or so. It's a very handy tool for testing USB devices, checking load levels and debugging battery chargers and boost converters.
Specifications:
- USB 1.x and 2.x - all data speeds. Does not have USB v3 pins so USB v3 connections will automatically downgrade to v2
- Working Range: 0~3A, 3.5~7VDC
- Resolution: 10mV / 10mA
- Operating Temperature: 0-60ºC
- Contents:
- Camera Board 360 Gooseneck Mount V2
Dimensions:
- 21mm x 53mm x 15mm / 0.8" x 2.1" x 0.6"
- USB Plug: 13mm / 0.5"
- Weight: 16.2g
DC 4.5-30V 3 Wire LED Voltmeter Digital Display Panel Volt Meter (dc 3 wire volt meter)
Features:
Display Color: Red
The black line connects to the negative electrode, red line connects to positive pole of power supply, white line connects to positive pole of tested power supply
Material: Plastic Shell
Display Digit: 3
Measuring Range: DC 4.5-30V
Working voltage: 4.5-30V
Working voltage: 4.5-30V
Overall Dimension: Approx 28mm x 47mm x 21mm
Package Includes:
1 x Digital LED Display Voltmeter
GPIO Reference Board (Model B+,A+,2B and 3B) (gpio ref 40pin board)
RASPBERRY PI NOT INCLUDED(Neither the key-ring and keys for those who wondered)
This cute little GPIO reference board from allows you to quickly and easily distinguish between the different pins of the Raspberry Pi Model B+, Raspberry Pi 2B, Pi 3B and Pi 3B+. It's even got a key chain hole, so you can carry it around and keep it handy - you'll never know when you need to hack a Pi!
The GPIO reference board features BCM numbering on one side and the pin names on the other. It can be soldered for permanent referencing, or slipped on and off when required.
Dimensions:
Width = 67mm
Height = 19mm
Thickness = 0.8mm
On the RPi3 and later you'll have to snip off a little bit of the corner closest to pin 39 thanks to the new POE pins on the board
On the RPi3 and later you'll have to snip off a little bit of the corner closest to pin 39 thanks to the new POE pins on the board
Dual Experimental kit RPI and Uno (Dual experimental board kit)
PLEASE NOTE: RASPBERRY PI AND ARDUINO NOT INCLUDED
Description:
This is an Experimental Platform For Raspberry Pi 2/3 Model B and B+ and Arduino UNO R3
With Breadboard, Male to Female jumper cables, T type 40Pin GPIO, Ribbon Cable.
Package includes:
1 x Acrylic Platform (with Installation screws pack)
1 x Breadboard 800
10 x Male to Female jumper cables (Length: 25cm±2cm)
1 x T type 40Pin GPIO
1 x 40 pin ribbon Cable (20cm±2cm Length)
Description:
This is an Experimental Platform For Raspberry Pi 2/3 Model B and B+ and Arduino UNO R3
With Breadboard, Male to Female jumper cables, T type 40Pin GPIO, Ribbon Cable.
Package includes:
1 x Acrylic Platform (with Installation screws pack)
1 x Breadboard 800
10 x Male to Female jumper cables (Length: 25cm±2cm)
1 x T type 40Pin GPIO
1 x 40 pin ribbon Cable (20cm±2cm Length)
RJ45 RJ11 2-in-1 Network and Phone Cable Tester (RJ45 tester)
The cable tester can be used for RJ45 networks, RJ11 and telephone cables. It can test the cables with reliable accuracy. This is a useful tool for technicians in installation and maintenance.
- Tests both RJ45 (max 8-pin Network) and RJ11 (max 6-pin phone)
- Powered by a single 9V cell battery(not included)
- Powered by a single 9V cell battery(not included)
- Carrying case not included
USB Detector Current Voltage 3V-9V Tester Dual USB Dual display (USB Docter Dual)
Use the USB Charger Doctor to measure the working voltage and current output for any USB port and project. This plastic dongle plugs between a USB device, and passes the data lines through. There's a 0.05 ohm resistor in line with the power pin that is used to measure current draw. The Doctor's digital display instantly reads the numbers out for testing devices such as chargers, cables, and cell phones.
You can use this device from 3.5-7VDC input voltage (although most USB devices tend to hover around 4.75 to 5.25) and up to 3A of current. It displays both voltage and current readouts. It's a very handy tool for testing USB devices, checking load levels and debugging battery chargers and boost converters.
Servo Tester Third Gear Switch With Indicator Light 4.2V To 6.0v (Servo tester blue)
Description:
Item Name: Servo Tester
Size: 46x32x17mm
Weight: 8g
Color: Blue
Input: DC 4.2 to 6.0V
Output: ≤15mA (5.0)
Output signal: 1.5ms±0.5ms
Adjustment Methods: Manual, Neutral, Automatic.
Features:
Small size,low power consumption,high reliability and easy operation.
It can easily detect and configure server virtual bit, jitter and middle position.
Can connect two servos or ESC;
MCU control,good stability,high accuracy.
Note:
This product can't test a servo with a weight more than 55g.
If you want to test the motor,please first connect the ESC.
Package Includes:
1x servo tester
Item Name: Servo Tester
Size: 46x32x17mm
Weight: 8g
Color: Blue
Input: DC 4.2 to 6.0V
Output: ≤15mA (5.0)
Output signal: 1.5ms±0.5ms
Adjustment Methods: Manual, Neutral, Automatic.
Features:
Small size,low power consumption,high reliability and easy operation.
It can easily detect and configure server virtual bit, jitter and middle position.
Can connect two servos or ESC;
MCU control,good stability,high accuracy.
Note:
This product can't test a servo with a weight more than 55g.
If you want to test the motor,please first connect the ESC.
Package Includes:
1x servo tester
RJ45 Cat5e Cat6 Network Ethernet LAN Cable Tester Crimper Crimping Tool Kit (Network tool kit)
Features:
Cable Crimper:
1. Portable style with perfect shape.
2. The mouth of the press-pliers is made of steel, which is hard and durable.
3. It won't damage the shelled-wire and work conveniently with high efficiency.
4. While using press-pliers, just insert the modular plug into its position and press it.
5. Suitable for Cat5, Cat5e, and Cat 6 cable
6. Wire stripper included.
Cable Tester:
1. Test RJ45 and RJ11 network cables
2. Test correspondingly double-twisted cables 1, 2, 3, 4, 5, 6, 7, 8 and Ground.
3. Can judge wrong connection, short circuit and open circuit.
4. Put cables into both main tester and remote tester.
5. The lights of the main tester will turn on sequently from 1 to G.
6. Detachable remote tester, test remote cable up to 1000ft. in length.
7. Power supply: DC 9V battery.
8. Come with protective leather case.
100 RJ45 RJ-45 CAT5 Modular Plug Network Connector
1. RJ45 RJ-45 Connectors Modular Plug 1000 Plugs Pack Model PCRJ1000
2. 8 Pins Network Cable Heads / Plugs. Plugs for UTP Cat5, Cat5e solid or stranded wire solid or stranded Cable.
3. Gold plated leads for better data transmitting and higher signal strength
Package Includes:
1 x Network Crimper
1 x Cable Tester
1 x Wire Stripper
50 x RJ45 RJ-45 CAT5 Modular Plug Network Connector
50 x boots
50 x boots
Prototyping Expansion Board For Raspberry Pi 2/3 Model B and B+ Kit (AW Pi prototyping kit)
Features:
The hole gap is 2.54mm, and it's compatible with IC with DIP package.
The IO port can be quickly and easily implement your ideas.
Note:
- Extra header spacer included
- 170 tie points breadboard arranged in 34 rows of 5 pins included
Package includes:
1 x Prototyping Shield kit
The hole gap is 2.54mm, and it's compatible with IC with DIP package.
The IO port can be quickly and easily implement your ideas.
Note:
- Extra header spacer included
- 170 tie points breadboard arranged in 34 rows of 5 pins included
Package includes:
1 x Prototyping Shield kit
ANENG AN8002 Digital Multimeter AC/DC Current Voltage Frequency Resistance Temperature ℃/℉ (multimeter)
Description:
It is a Auto-ranging digital MultiMate using double-integral style A/D transform as the core.
Can be used to measures Temperature AC/DC Voltage AC/DC Current Resistance Capacitance Diode and Continuity testing temperature Frequency and Etc.
The products are battery powered they are characterized by stable function and high reliability, with the features of overload protection and LCD display for clear reading are an ideal tools for lavatory radio fans and family use.
Features:
Auto Range.
True RMS measurement.
Resistance capacitance frequency file high voltage 550V protection.
Large screen display, the maximum of 6000 words.
Sampling rate: about 3 times per second.
Temperature measuring.
Backlight display.
Data retention.
Polarity automatic recognition.
Low voltage display.
10A large current measurement MA level small current measurement Automatic shutdown.
Main measurement: AC / DC voltage, AC / DC current, resistance, capacitance.
Diode / off measurement, frequency and duty ratio measurement.
Specification:
| Function | Range | Resolution | Accuracy | MAX.Value | Other |
| DC Voltage | 6.000V | 0.001V | ±(0.5%+3) | 1000V | Input Resistance:10MΩ |
| 60.00V | 0.01V | ||||
| 600.0V | 0.1V | ||||
| 1000V | 1V | ||||
| 60.00mV | 0.01mV | 600mV | |||
| 600.0mV | 0.1mV | ||||
| AC Voltage | 6.000V | 0.001V | ±(1.0%+3) | 750V | Input Resistance:10MΩ(600mV range, >60MΩ) Frequency Response: 40Hz-1kHz |
| 60.00V | 0.01V | ||||
| 600.0V | 0.1V | ||||
| 750V | 1V | ||||
| 60.00mV | 0.01mV | 600mV | |||
| 600.0mV | 0.1mV | ||||
| DC Current | 6.000A | 0.001A | ±(1.2%+3) | 10A | MAX.Current: 10A(no more than 15 seconds) No Voltage input at this mode Frequency Response(AC): 40Hz-1kHz |
| 10.00A | 0.01A | ||||
| 60.00mA | 0.01mA | 600mA | |||
| 600.0mA | 0.1mA | ||||
| AC Current | 6.000A | 0.001A | ±(1.5%+3) | 10A | |
| 10.00A | 0.01A | ||||
| 60.00mA | 0.01mA | 600mA | |||
| 600.0mA | 0.1mA |
| Resistance | 600.0Ω | 0.1Ω | ±(0.5%+3) | 60MΩ | No Voltage input at this mode | |||||
| 6.000kΩ | 0.001kΩ | |||||||||
| 60.00kΩ | 0.01kΩ | |||||||||
| 600.0kΩ | 0.1kΩ | |||||||||
| 6.000MΩ | 0.001MΩ | |||||||||
| 60.00MΩ | 0.01MΩ | ±(1.5%+3) | ||||||||
| Capacitance | 9.999nF | 0.001nF | ±(5.0%+20) | 9.999mF | No Voltage input at this mode | |||||
| 99.99nF | 0.01nF | ±(2.0%+5) | ||||||||
| 999.9nF | 0.1nF | |||||||||
| 9.999μF | 0.001μF | |||||||||
| 99.99μF | 0.01μF | |||||||||
| 999.9μF | 0.1μF | |||||||||
| 9.999mF | 0.001mF | ±(5.0%+5) | ||||||||
| Frequency | 99.99Hz | 0.01Hz | ±(0.1%+2) | 9.999MHz | ||||||
| 999.9Hz | 0.1Hz | |||||||||
| 9.999kHz | 0.001kHz | |||||||||
| 99.99kHz | 0.01kHz | |||||||||
| 999.9kHz | 0.1kHz | |||||||||
| 9.999MHz | 0.001MHz | |||||||||
| Duty Cycle | 1%~99% | 0.1% | ±(0.1%+2) | |||||||
| Diode | √(DC forward current is 5mA, voltage is 3V) | No Voltage input at this mode | ||||||||
| Continuity | √(no more than 50Ω) | |||||||||
Temperature | -20~1000℃ | 1℃ | ±(2.5%+5) | 1000℃ | ||||||
| -4~1832℉ | 1℉ | 1832℉ | ||||||||
Measurement mode: double-integral style A/D transform
Sample rate: 3 times per second
Over range indication: OL
Powered by 2 x AAA batteries (Not included).
Working Environment: 0-40 degrees relative humidity: <80%
Product size: approx. 130 x 65 x 30mm/5.11 x 2.55 x 1.18''
Net weight: approx. 170g
Gross weight: approx.238g
Package included:
1 x ANENG AN8002 Digital Ture RMS 6000 Counts Multimeter
2 x Test Lead Set
1 x Temperature Sensing Cable
1 x Storage Bag
1 x English User Manual
Liitokala Lii-402 Micro USB DC 5V 4Slots 18650/26650/16340/14500 Battery Charger (4 bay battery charger)
PLEASE NOTE:
Misusing or mishandling a lithium-ion battery may cause a FIRE or EXPLOSION which can result in INJURY or DEATH.
Specifications:
Product name: Liitokala Lii-402 Micro USB 4Slots Battery Charger
Input : Micro USB DC 5V/2A
Output: 1.42V
4.2V±0.05V
3.65±0.05V
4.35±0.05V
Current: 2000mA*1 1000mA*2 700mA*3 500mA*4
Constant voltage, cut-off current: less than 100mAh
Standby current: less than 15mAh
Compatible with:
Ni-MH/Cd
AA/AAA/A/SC Sizes
3.7V Li-ion battery including
26650,22650,26500,18650,18490,17670,17500,16340,14500,10440
Size: 112mm x 90mm x 30mm (L x W x H)
Weight: 150 grams (incl. micro cable)
1 x Liitokala Lii-402 Micro USB 4Slots Battery Charger
1 x USB Cable
Misusing or mishandling a lithium-ion battery may cause a FIRE or EXPLOSION which can result in INJURY or DEATH.
Specifications:
Product name: Liitokala Lii-402 Micro USB 4Slots Battery Charger
Input : Micro USB DC 5V/2A
Output: 1.42V
4.2V±0.05V
3.65±0.05V
4.35±0.05V
Current: 2000mA*1 1000mA*2 700mA*3 500mA*4
Constant voltage, cut-off current: less than 100mAh
Standby current: less than 15mAh
Compatible with:
Ni-MH/Cd
AA/AAA/A/SC Sizes
3.7V Li-ion battery including
26650,22650,26500,18650,18490,17670,17500,16340,14500,10440
Size: 112mm x 90mm x 30mm (L x W x H)
Weight: 150 grams (incl. micro cable)
USB Output function
1. 0pen-circuit voltage of USB output : 4.9-5.3V; and the 4th slot is fixed for the USB discharge power source
2. Output current: 1000mAh
3. Open circuit current: <1mAh
4. The corresponding voltage is 4.75-5.25V under 1000mAh current
5. Cut-off voltage for discharge protection: 3.0±0.1V
You will need a USB micro B cable power supply for this charger.
1 x Liitokala Lii-402 Micro USB 4Slots Battery Charger
1 x USB Cable
130A High Precision DC Watt Meter And Power Analyzer (DC Power analyzer)
Examples of Uses:
How Much Power Does my Fridge Use - with the Battery connected to the SOURCE side and Car Fridge (or other accessory) connected to the LOAD side. The Watt Meter shows the current into the Fridge, voltage and power at the battery and accumulates the Ah and Wh while the fridge is running.
How much charge is going into my battery - With a battery charger (or alternator) connected to the SOURCE side and the aux battery connected to the LOAD side, the Watt Meter shows the charging current into the battery, the voltage and charging power at the battery and accumulates the charge (Ah) and energy (Wh) into the battery.
What is the output of my solar panel - With a solar panel connected to the SOURCE side and solar regulator connected to the LOAD side, the Watt Meter shows the charging current into the regulator, the voltage and charging power at the solar panel and accumulates the charge (Ah) and energy (Wh) into the regulator.
How much charge is my solar panel putting into my battery - Now with a solar regulator connected to the SOURCE side and battery connected to the LOAD side, the Watt Meter shows the charging current into the battery, the voltage and charging power at the regulator and accumulates the charge (Ah) and energy (Wh) into the battery.
Specification:
English Manual please click here
Package Includes:
1x 130A High Precision Battery Watt Meter And Power Analyzer
How Much Power Does my Fridge Use - with the Battery connected to the SOURCE side and Car Fridge (or other accessory) connected to the LOAD side. The Watt Meter shows the current into the Fridge, voltage and power at the battery and accumulates the Ah and Wh while the fridge is running.
How much charge is going into my battery - With a battery charger (or alternator) connected to the SOURCE side and the aux battery connected to the LOAD side, the Watt Meter shows the charging current into the battery, the voltage and charging power at the battery and accumulates the charge (Ah) and energy (Wh) into the battery.
What is the output of my solar panel - With a solar panel connected to the SOURCE side and solar regulator connected to the LOAD side, the Watt Meter shows the charging current into the regulator, the voltage and charging power at the solar panel and accumulates the charge (Ah) and energy (Wh) into the regulator.
How much charge is my solar panel putting into my battery - Now with a solar regulator connected to the SOURCE side and battery connected to the LOAD side, the Watt Meter shows the charging current into the battery, the voltage and charging power at the regulator and accumulates the charge (Ah) and energy (Wh) into the battery.
Specification:
| Item Name | Watt Meter and Power Analyzer |
| Item NO. | FT08 |
| Operation Voltage | 4.8V-60V |
| Measures Range | 0-130A, resolution 0.01A; 0-60V, resolution 0.01v; 0-6554W, resolution 0.1w; 0-65Ah,resolution 0.001An; 0-6441Wh,resolution 0.1Wh; |
| LCD | 16 x 2, backlit LCD display |
| Size | 85 mm x 43 mm x 25 mm (3.35 in x 1.69 in x 0.98 in) |
| Weight | 82g |
| Color | Black |
English Manual please click here
Package Includes:
1x 130A High Precision Battery Watt Meter And Power Analyzer
We found this little unit great to measure our incoming solar power versus outgoing battery load on a second unit
Anti-Static ESD Wrist Band with Grounding Lead Black (black anti static wrist)
Features:
1. High quality
2. Double circuit electronic, anti-friction.
3. Loop length can be adjusted.
4. Easy to use and flexible, long life and does not produce dust.
5. Mainly for the production line staff and static index is high individuals within the scope of activities of production and easy to produce static electricity generated in their daily working lives high electrostatic potential
6. Use of "point discharge" principle, to achieve electrostatic collection and release.
2. Double circuit electronic, anti-friction.
3. Loop length can be adjusted.
4. Easy to use and flexible, long life and does not produce dust.
5. Mainly for the production line staff and static index is high individuals within the scope of activities of production and easy to produce static electricity generated in their daily working lives high electrostatic potential
6. Use of "point discharge" principle, to achieve electrostatic collection and release.
Specifications:
1. Main parts: Adopt ABS plastic material synthesis;
2. Wrist ring: Anti-static Elastic Fabric
3. Color: Black
4. Surface resistance: ≤103Ω
5. Electrostatic discharge time: <0. 1s
6. Cable length: 1. 8m/6FT
2. Wrist ring: Anti-static Elastic Fabric
3. Color: Black
4. Surface resistance: ≤103Ω
5. Electrostatic discharge time: <0. 1s
6. Cable length: 1. 8m/6FT
Package includes:
1 x Anti-static Wrist Strap
Hygrometer Thermometer Digital LCD Temperature Humidity Meter 10%~99%RH (Hygrometer Thermometer)
Description:
Color: Black
Measuring humidity: 10%RH-99%RH
Humidity accuracy: 5%
Humidity display resolution: 1% RH
Measuring temperature range: -50 centigrade~+70 centigrade
Temperature accuracy: 1 centigrade
Temperature display resolution: 0.1centigrade .
Operating voltage: 2 x 1.5V button LR44 batteries (Not included)
Dimension: 4.7x2.8x1.5cm(approx.)
LCD dimension: 3.6x1.7cm(approx.)
High Quality Hygrometer, wonderful tools for Indoor, Outdoor, Home, Laboratory, Library..etc.
Package includes:
1 x Humidity Hygrometer Meter
Color: Black
Measuring humidity: 10%RH-99%RH
Humidity accuracy: 5%
Humidity display resolution: 1% RH
Measuring temperature range: -50 centigrade~+70 centigrade
Temperature accuracy: 1 centigrade
Temperature display resolution: 0.1centigrade .
Operating voltage: 2 x 1.5V button LR44 batteries (Not included)
Dimension: 4.7x2.8x1.5cm(approx.)
LCD dimension: 3.6x1.7cm(approx.)
High Quality Hygrometer, wonderful tools for Indoor, Outdoor, Home, Laboratory, Library..etc.
Package includes:
1 x Humidity Hygrometer Meter
22mm 50-380V 100A 99Hz Digital Red LED Volt Amp HZ AC Ammeter Voltmeter Current Frequency Meter (V A HZ meter red AC)
Specifications:
Material: Electrical components
Color: Red
Shape: Square
Voltage measurement range: AC 50-380V
Current measurement range: AC 0-100A
Frequency measurement range: 0-99Hz
Size: 21.75mm x 21.75mm x 51.69 mm
Package Includes:
1 X Voltage & Current & Frequency meter
Material: Electrical components
Color: Red
Shape: Square
Voltage measurement range: AC 50-380V
Current measurement range: AC 0-100A
Frequency measurement range: 0-99Hz
Size: 21.75mm x 21.75mm x 51.69 mm
Package Includes:
1 X Voltage & Current & Frequency meter
Machifit 4pcs 22mm 20-500V Digital AC Voltmeter (4pcs AC voltmeter set)
Description:
Machifit 4pcs 22mm AC 20-500V Digital AC Voltmeter Voltage Meter Gauge Digital Display Indicator
Specifications:
Features:
Package Includes:
4 x AD16-22V 22mm Digital AC Voltmeters
Machifit 4pcs 22mm AC 20-500V Digital AC Voltmeter Voltage Meter Gauge Digital Display Indicator
Specifications:
| Model | AD16-22V |
| Mounting hole | 22mm |
| Voltage | AC 20-500V |
| Class of safety protection | IP65 |
| Color | Red, blue, yellow, green |
| Quantity | 4pcs |
Features:
Using copper contact, not easy to oxide and durable.
Life time can reach 100000 hours with LED chip.
Widely used in electric power, CNC lathe, printing, mechanical equipment, medical equipment, instrument equipment, etc.
Package Includes:
4 x AD16-22V 22mm Digital AC Voltmeters
Coming Soon. Login and add this item to your wishlist to be notified when stock arrives. Pricing is estimated at this stage.
USB To USB Isolator 12Mbps Speed ADUM4160/ADUM316 (usb isolator)
Compatible with USB 2.0, it provides full isolation at 12 Mbps data rates. With isolation of 2500V, it has no external power supply, no driver required.
Drive-free, more convenient to use.
Support USB full speed 12Mbps does not support pure high speed equipment.
Support USB control transfer, batch transfer, interrupt transfer, sync/isochronous transfer.
Specifications:
ADUM3160 isolation voltage: 2500V
Power module isolation voltage: 1500V
Power supply: taken from the computer host USB port
Operating environment: -40 °C to 85 °C
Dimensions: 15mm x 25mm x 66mm
Package includes:
1 x USB To USB Isolator
100A 22000W Power Monitor Module AC Meter Panel 45-65Hz Test Voltage AC 80-260V (AC power meter clamp)
Package includes:
Note:
1. This module is suitable for indoor use only.
2. Applied load can not exceed the rated power.
3. The wiring order can not be wrong.
4. This is an entry level measuring solution. Do not expect 100% accuracy.
4. This is an entry level measuring solution. Do not expect 100% accuracy.
| Product Type | PZEM-022 |
| Accuracy | 1.0 grade |
| Display Size | 51mm x 30mm |
| Product Size | 89.6mm x 49.6mm x 24.3mm |
| Weight | 150g(with split CT) |
| Test Range | 1. Voltage: 80~260V 5. Frequency: 45~65Hz 6. Power factor: 0~1PF |
| Function | 1. Electrical parameter measurement function (voltage, current, active power, energy, frequency, power factor) 2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm). 3. Power alarm threshold preset function (can set power alarm threshold). 4. The energy can be reset use the key. 5. Store data when power off. 6. Large-screen LCD 7. Backlight function. |
Package includes:
1 x 100A Power Monitor Module AC Meter Panel
1 x CT
FAQ
Why is the test data wrong? Voltage * Current = Power, But power is less than the actual test voltage * Current, Why is that?
Answer: There are three types of power:
Active Power (P represents / unit W)
Reactive power (Q represents / unit Var)
Apparent power (S represents / unit VA)
Here we only talk about Active Power, for others, please google it:
P = U * I * cosφ, cosφ it represents the power factor, purely resistive load (Such as incandescent, heater, etc.) the power factor is generally close to 1,Between the inductive and capacitive load load power factor 0-1. So purely resistive load test time, P is substantially equal to or close to U * I. When Inductive or capacitive load test (Such as refrigerators, washing machines, televisions, computers, etc.) P<U*I, As for how much to keep the power factor related to the specific, Different for each appliance power factor.
1 x CT
FAQ
Why is the test data wrong? Voltage * Current = Power, But power is less than the actual test voltage * Current, Why is that?
Answer: There are three types of power:
Active Power (P represents / unit W)
Reactive power (Q represents / unit Var)
Apparent power (S represents / unit VA)
Here we only talk about Active Power, for others, please google it:
P = U * I * cosφ, cosφ it represents the power factor, purely resistive load (Such as incandescent, heater, etc.) the power factor is generally close to 1,Between the inductive and capacitive load load power factor 0-1. So purely resistive load test time, P is substantially equal to or close to U * I. When Inductive or capacitive load test (Such as refrigerators, washing machines, televisions, computers, etc.) P<U*I, As for how much to keep the power factor related to the specific, Different for each appliance power factor.
Portable LED tester 2-150mA (LED tester)
Material: Plastic
Color: White
Handy device for testing LED's. Simply plug your LED into the correct holes (all of which are marked) and push the button to see its brightness, illuminant color, etc.
Handy device for testing LED's (2-150mA)
The top row is for 2 pin LED's with currents ranging from 2mA - 30mA
The bottom row is for 4 pin LED's (piranha LED's) with currents ranging from 20mA - 150mA
Lightweight & compact
Powered by a 9V battery (not included)
Item size(L*W*H) : Approx. 80mm x 55mm x 22mm
Quantity: 1PC
Color: White
Handy device for testing LED's. Simply plug your LED into the correct holes (all of which are marked) and push the button to see its brightness, illuminant color, etc.
Handy device for testing LED's (2-150mA)
The top row is for 2 pin LED's with currents ranging from 2mA - 30mA
The bottom row is for 4 pin LED's (piranha LED's) with currents ranging from 20mA - 150mA
Lightweight & compact
Powered by a 9V battery (not included)
Item size(L*W*H) : Approx. 80mm x 55mm x 22mm
Quantity: 1PC
DC 0-100V 10A Digital Voltmeter Ammeter Dual Display Gauge 0.28" Red Blue LED (volt/amp meter)
Description
- Voltage 0.0V to 100V
- Current 0A to 10A
- Working voltage DC 4 to 30V
- Working current <20mA
- Size 48mm x 29mm x 22mm