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Used as TO220 MOSFET or voltage regulator Heat Sink
R15.03  Inc VAT
We found this little unit great to measure our incoming solar power versus outgoing battery load on a second unit
R319.90  Inc VAT
Connect up to 7 Current and 1 voltage sensor to a raspberry pi.
R999.90  Inc VAT
Connect up to 7 Current and 1 voltage sensor to a raspberry pi.
R1,069.90  Inc VAT
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.

R149.90  Inc VAT
8-Channel 3.3V to 5V Voltage Converter Module for Raspberry Pi - Blue (8ch blue convert sensor)
Raspberry Pi and jumper cables are not included.

Highlights:

- Mutual conversion between 3V and 5V, It's convenient for PI connected to external 5V sensors or modules

- Supports total of 8 channels

- Range of voltage converted: 1.8V~6VDC

How to Use:
In the case of translating between 3.3V and 5V system:
VCCA connects to 3.3V power supply
VCCB connects to 5V power supply
GND connects to power negative pole respectively, the two power supply should be common-grounded with each other
When Ax has 3.3V input, Bx will get 5V output
When Bx has 5V input, Ax will get 3.3V output
NO direction control required
R44.90  Inc VAT
Buck Converter Step Down DC 24V to 12V 5A 60W Voltage Regulator (24 to 12V step down regulator)
Description :
1. Over current protection.
2. Short circuit protection
3. Quantity: 1 pc
 
Specification :
Minimum pressure2V
Input VoltageDC 24V(DC15V—40V)
Output VoltageDC 12V
Output Power60W
Output Current5A
Conversion Efficiency90%
Full Load Temperature Rise50 degree
 
Package includes :
1 X Buck Converter Step-Down Voltage Regulator
R206.90  Inc VAT
Isolated AC 110V / 220V To DC 5V 600mA Constant Voltage Switch Power Supply Converter (220AC to 5DC converter white)
Description:

This power supply is a isolated industrial grade built-in power module with temperature, over current, and short circuit protection.

Features:

AC85 - 264V or  DC110 - 370V wide voltage input
DC 5V(+/ -0.2V) 600mA isolated output
Input Current: 0.0273A/115VAC  0.014A/230VAC
Input surge current: 20A (230VAC)
Frequency range: 50/60 Hz
Operating Temperature: -30 - 70 ℃
Relative humidity: 20%- 90%
Rated power: 3W
Output efficiency: 80%
Module size: 40mm x 23mm x 23mm

Package includes:

1 x AC-DC Isolated AC 110V / 220V To DC 5V 600mA Constant Voltage Switch Power Supply Converter
R74.90  Inc VAT
12V Lead Acid Battery Digital Charge Level Indicator (battery meter digital)
Description:

Charge Level Red Indicator Voltmeter Precise for 12V Lead-acid Battery
1. Working current:5-15mA
2. Eight electricity Level Resolution:10% 25% 40% 50% 60% 75% 90% 100%
3. Voltmeter accuracy:1%
4. Working temperature: -10 ~ +65 Celsius
5. Operating Humidity: 10 ~ 80%
6. Dimensions: 48mm x 29mm x 22mm

Indicator:

Battery voltage is greater than 11.1V, 1 led indicator is lit.
Battery voltage is greater than 11.3V, 2 led indicator is lit.
Battery voltage is greater than 11.6V, 3 led indicator is lit.
Battery voltage is greater than 11.9V, 4 led indicator is lit.
Battery voltage is greater than 12.2V, 5 led indicator is lit.
Battery voltage is greater than 12.5V, 6 led indicator is lit.
Battery voltage is greater than 12.9V, 7 led indicator is lit.
Battery voltage is greater than 13.3V, 8 led indicator is lit.

Package Includes:

1 x lead acid LED indicator battery capacity tester voltmeter 12V
R57.90  Inc VAT
L7812CV Voltage Regulator IC 12V (Voltage Regulator IC 12V)
Primary input voltage: 19V
Input Voltage Min: 14V
Maximum input voltage: 35V
Fixed output voltage: 12V
Pressure drop: 2V
Output channel number: 1
Number of pins: 3
Output current: 1.5A
Package Type: TO-220 Tube
Operating temperature range: 0℃ to + 150℃ 
SVHC (Highly Concerned Substances): No SVHC (20-Jun-2011)
Device number: 7812
Tolerance, operating voltage +: 4%
Voltage Rectifier Type: Positive Fixed
Maximum supply voltage: 27V
Power supply voltage minimum: 14.5V
Surface Mount Devices: Through Hole Installation

Package included:

1 x TO-220 Voltage Regulator IC

Resources:
Understanding How a Voltage Regulator Works
R6.90  Inc VAT
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
R49.90  Inc VAT
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
Overall Dimension: Approx 28mm x 47mm x 21mm
 
Package Includes:
 
1 x Digital LED Display Voltmeter
R39.90  Inc VAT
4V to 40V DC to DC Step Down LM2596 Voltage Regulator Converter Module (Green step down LM2596)
Specifications:

Input voltage range: 4-40 v (40 v highest voltage limit)
Output voltage range:1.25V - 37V (input voltage must 2 V above output)
Output current: 2 A continuous output
Output power: maximum 15 w
Ripple frequency: 150 KHZ
Grain wave peak: 100 mv
IN + : input positive
IN - : input negative
OUT + : output positive
OUT - : output negative
Voltmeter precision: ± 5 ‰
Weight: 33g
Size: 7cm x 4cm

Package includes:

LM2596 voltage regulator converter module
R109.90  Inc VAT
L7805CV TO220 5V Voltage Regulator (L7805 Volt Reg)
  • Integrated circuit
  • Voltage regulator
  • +5V
  • Non Insulated

Resources:
Understanding How a Voltage Regulator Works
R4.90  Inc VAT
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: 
 
 
FunctionRangeResolutionAccuracyMAX.ValueOther
DC Voltage 6.000V0.001V±(0.5%+3)1000VInput Resistance:10MΩ
60.00V0.01V
600.0V0.1V
1000V1V
60.00mV   0.01mV600mV
600.0mV    0.1mV   
AC Voltage 
 
6.000V0.001V±(1.0%+3)750VInput Resistance:10MΩ(600mV range, >60MΩ)
Frequency Response: 40Hz-1kHz
60.00V0.01V
600.0V0.1V
750V1V
60.00mV0.01mV   600mV
600.0mV    0.1mV   
DC Current
 
6.000A0.001A±(1.2%+3)10AMAX.Current:
10A(no more than 15 seconds)
No Voltage input at this mode
Frequency Response(AC):
 40Hz-1kHz
10.00A0.01A
60.00mA0.01mA600mA
600.0mA0.1mA
AC Current 
 
6.000A0.001A±(1.5%+3)10A
10.00A0.01A
60.00mA0.01mA600mA
600.0mA0.1mA
Resistance600.0Ω0.1Ω±(0.5%+3)60MΩNo Voltage input at this mode
6.000kΩ0.001kΩ
60.00kΩ0.01kΩ
600.0kΩ0.1kΩ
6.000MΩ0.001MΩ
60.00MΩ0.01MΩ±(1.5%+3)
Capacitance 9.999nF0.001nF±(5.0%+20)9.999mFNo Voltage input at this mode
99.99nF0.01nF±(2.0%+5)
999.9nF0.1nF
9.999μF0.001μF
99.99μF0.01μF
999.9μF0.1μF
9.999mF0.001mF±(5.0%+5)
Frequency99.99Hz0.01Hz±(0.1%+2)9.999MHz 
999.9Hz0.1Hz
9.999kHz0.001kHz
99.99kHz0.01kHz
999.9kHz0.1kHz
9.999MHz0.001MHz
Duty Cycle1%~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
R499.90  Inc VAT
Aluminium Heat Sink Heat Sink For TO220 voltage regulator (TO220 alum. heat sink)
Specifications:

Used as MOSFET or voltage regulator Heat Sink
Note: The voltage regulator is not included.

Package Includes:

1 x Heat Sink
Used as TO220 MOSFET or voltage regulator Heat Sink
R15.03  Inc VAT
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:


Item NameWatt Meter and Power Analyzer
Item NO.FT08
Operation Voltage4.8V-60V
Measures Range0-130A, resolution 0.01A;
0-60V, resolution 0.01v;
0-6554W, resolution 0.1w;
0-65Ah,resolution 0.001An;
0-6441Wh,resolution 0.1Wh;
LCD16 x 2, backlit LCD display
Size85 mm x 43 mm x 25 mm (3.35 in x 1.69 in x 0.98 in)
Weight82g
ColorBlack

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
R319.90  Inc VAT
Geekcreit® 100A 22000W Power Monitor Module AC Meter Panel 45-65Hz Test Voltage AC 80-260V (AC power meter)
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.
 
Specifications:
 
Apply to power grid voltage range: 110V-220V
Working voltage: 80 ~ 260VAC
Test voltage: 80 ~ 260VAC
Rated power: 100A / 22000W
Working Frequency: 45-65Hz
Measurement accuracy: 1.0 (Error 1%)
Dimensions of LED display screen: 51 x 30mm
 
Features:
 
Network voltage direct power supply, no external power supply needed, measurement precision, large-screen LCD liquid crystal screen display clearly.
 
A. Function
 
1. electrical parameter measurement function (voltage, current, active power, power).
2. overload alarm function (over power alarm threshold, the backlight and power flicker tips).
3. The power alarm threshold preset function (can set up their own power alarm threshold).
4. Power button clear function.
5. Power-down data storage function.
6. Large-screen LCD screen full display function (display voltage, current, active power, power).
7. Backlight.
 
B. Display and key
 
Display voltage, current, power, energy parameters from the large-screen LCD screen simultaneously.
 
Display Format
 
1. Power: measurement range 0 ~ 22kW
        1kW display format within 0.0 ~ 999.9W;
        From 1kW display format 1000 ~ 9999W;
        10kW above the display format 10.0 ~ 22.0kW.
2. Power: measurement range 0 ~ 9999kWh
        10kWh within the display format 0 ~ 9999Wh;
        Above 10kWh display format 10 ~ 9999kWh;
3. Voltage: Test Range 80 ~ 260V
          Display Format 80 ~ 220V
4. Current: Test Range 0 ~ 100A
          Display Format 0.00 ~ 99.99A.
 
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. 
R259.90  Inc VAT
RPICT7V1 100A Version 2 - 7 CT - 1Voltage - Master (100A 7 current 1 volt board)

Please Note: Raspberry Pi and sensors are not included

Raspberrypi CT Adaptor

Connect up to 7 Current and 1 voltage sensors to a Raspberry Pi 3B.(Not the 3B+)


Use with sct-013-000 split core current sensor and 230VAC to 9VAC power adapter

Documentation: http://lechacal.com/wiki/index.php/RPICT7V1_v2.0



Description


  • 7x Current sensor ports
  • 1x ac Voltage sensor ports
  • Arduino IDE programmable
  • EmonCMS compatible.
  • CSV serial output
  • Atmega328 Microcontroller
  • View/record data using Linux/Python/Emoncms
  • Stackable - Up to 5 board stack on one Raspberrypi.
  • Compatible with Raspberrypi 2 & 3.

Package Content

  • 1 RPICT7V1 Master version 2 Unit.
  • 4 Mounting Spacers
  • 8 Mounting Screws

Recommended Sensors

 

Default Configuration

Output format is Emonhub by default. Output format configurable via serial interface.

Outputs 21 channels:

  • Real Power x7 (Watts)
  • Irms x7 (mAmps)
  • Vrms x1 (Volts)
(note apparent power can be calculated using Vrms*Irms.

Parameters:

Node ID: 11
Scan interval: 5 seconds
Output: Emonhub

Default loaded sketch freely available on the wiki page.

Emoncms Ouput:


Rpict7v1_channels_001.png

Connect up to 7 Current and 1 voltage sensor to a raspberry pi.
R999.90  Inc VAT
RPICT7V1 30A Version 2 - 7 CT - 1Voltage - Master (30A 7 current 1 volt board)

Please Note: Raspberry Pi and sensors are not included

Raspberrypi CT Adaptor

Connect up to 7 Current and 1 voltage sensors to a Raspberry Pi 3B.(Not the 3B+)

Documentation: http://lechacal.com/wiki/index.php/RPICT7V1_v2.0



Description


  • 7x Current sensor ports
  • 1x ac Voltage sensor ports
  • Arduino IDE programmable
  • EmonCMS compatible.
  • CSV serial output
  • Atmega328 Microcontroller
  • View/record data using Linux/Python/Emoncms
  • Stackable - Up to 5 board stack on one Raspberrypi.
  • Compatible with Raspberrypi 2 & 3.

Package Content

  • 1 RPICT7V1 Master version 2 Unit.
  • 4 Mounting Spacers
  • 8 Mounting Screws

Recommended Sensors

 

Default Configuration

Output format is Emonhub by default. Output format configurable via serial interface.

Outputs 21 channels:

  • Real Power x7 (Watts)
  • Irms x7 (mAmps)
  • Vrms x1 (Volts)
(note apparent power can be calculated using Vrms*Irms.

Parameters:

Node ID: 11
Scan interval: 5 seconds
Output: Emonhub

Default loaded sketch freely available on the wiki page.

Emoncms Ouput:


Rpict7v1_channels_001.png

Connect up to 7 Current and 1 voltage sensor to a raspberry pi.
R1,069.90  Inc VAT
RPIZ_CT3T1 3 current and 1 Temperature 30A AC adapter for Raspberry Pi zero (zero 3 current 1 temp)

The RPIZ_CT3T1 is the same unit as the RPICT3T1 in the Raspberry pi Zero format.

Refer to the RPICT3T1 for full documentation.

Use with sct-013-000 split core current sensor and DS18B20 temp sensor

Please note: Raspberry Pi Zero and sensors are not included


R529.90  Inc VAT
RPIZ_CT3V1 3 current and 1 Volt 30A AC adapter for Raspberry Pi zero (zero 3 current 1 volt)

The RPIZ_CT3T1 is the same unit as the RPICT3V1 in the Raspberry pi Zero format.

Refer to the RPICT3V1 for full documentation.

Use with sct-013-000 split core current sensor and 230VAC to 9VAC power adapter

Please note: Raspberry Pi Zero and sensors are not included



R529.90  Inc VAT
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

R44.90  Inc VAT
LD1117V33 voltage Regulator 3.3 V TO-220 (LD1117V33 Volt Reg)
    Specifications
    Output Voltage3.3 V
    Output TypeFixed
    Package TypeTO-220
    Maximum Output Current1.3A
    Mounting TypeThrough Hole
    Maximum Input Voltage15 V
    Pin Count3
    Number of Outputs1
    PolarityPositive
    Quiescent Current5mA
    Accuracy±1%
    Minimum Operating Temperature0 °C
    Maximum Operating Temperature+150 °C
    Height9.15mm
    Width4.6mm
    Line Regulation6 mV
    Length10.4mm
    Dimensions10.4 x 4.6 x 9.15mm
    Load Regulation10 mV


    Resources:
    Understanding How a Voltage Regulator Works

    R9.90  Inc VAT
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