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We found this little unit great to measure our incoming solar power versus outgoing battery load on a second unit
R359.90  Inc VAT
2:1 Black Heat Shrink Tubing 2mm per meter (black heat shrink 2mm)
Description:

Heat-shrink tubing is a shrinkable plastic tube used to insulate wires, providing abrasion resistance and environmental protection for stranded and solid wire conductors, connections, joints and terminals in electrical work.

Specifications:

Shrinkage Ratio: 2:1 (will maximum shrink to 1/2 its supplied diameter)
Cutting method: Scissors or sharp knife

What's in the box?

1 x 1m heat shrink tube
R7.90  Inc VAT
2:1 Black Heat Shrink Tubing 4.5mm per meter (black heat shrink 4.5mm)
Description:

Heat-shrink tubing is a shrinkable plastic tube used to insulate wires, providing abrasion resistance and environmental protection for stranded and solid wire conductors, connections, joints and terminals in electrical work.

Specifications:

Shrinkage Ratio: 2:1 (will maximum shrink to 1/2 its supplied diameter)
Cutting method: Scissors or sharp knife

What's in the box?

1 x 1m heat shrink tube
R7.90  Inc VAT
Cat 5e ethernet cable per meter (Cat5e per meter)
Description:

Cat5e is currently the most commonly used in new installations. It's designed to greatly reduce crosstalk.
It basically means the Cat 5e is better at keeping signals on different circuits or channels from interfering with each other.

Specifications:

A step above Cat 5, it can handle 1000 Mbps speeds (gigabit Ethernet) at 100 MHz.

What's in the box?


Sold per meter.
Please indicate via the quantity box how many meters you would like to have.
R6.50  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
What's in the box?:

1 x USB Voltage and Current Meter
R59.90  Inc VAT
DC 4.5-30V 3 Wire LED Voltmeter Digital Display Panel Volt Meter (dc 3 wire volt meter)
Description:

This voltmeter work without external power supply, can use the measuring voltage directly, Wide working voltage range of 4.5-30V. The wire connection is simple, only need to connect two wires, the red line connect the anode, the black line connect the cathode. 

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
R49.90  Inc VAT
Soil Hygrometer Humidity Detection Moisture Sensor (moisture probe hygrometer)
Description:

This is a summary of the soil moisture sensor that can be used to detect moisture, when the soil is dry, the module outputs a high level. Use this sensor to build an automatic watering system.

Specifications:

Operating voltage: 3.3V~5V.
Adjustable sensitivity (blue digital potentiometer adjustment)
Dual output mode,analog output more accurate.
A fixed bolt hole for easy installation.
Power indicator (red) and digital switching output indicator (green).
LM393 comparator chip, stable.
PCB Dimension: 3cm x 1.5cm.
Soil Probe Dimension: 6cm x 2cm.
Cable Length: 21cm.

VCC: 3.3V-5V.
GND: GND.
DO: digital output interface (0 and 1).
AO: analog output interface.

Setup with Raspberry Pi

Package Includes:

1 x Soil moisture detector module
1 x Probe
5 x Jumper Cables

R29.90  Inc VAT
Potentiometer single turn carbon linear PCB 10K (potentio 10k)

Description:

A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. Potentiometers are commonly used to control electrical devices such as volume controls on audio equipment.

Specifications:
Single turn 10K

  • Linear
  • Carbon
  • PCB type
  • 5mm pitch pin
  • Spline shaft
  • 17mm diameter
  • 0.2W
  • Shaft length 10mm
  • Shaft diameter 6mm

Resources:

Python Library
Definition, Types, And Working Principle

What's in the box:

1 x 10K PCB Potentiometer
R6.90  Inc VAT
Flat Ribbon Cable 40 Way - 2 Meter lenghts (40 ribbon/2m)
Description:

Looking for a neat way to connect data transmission devices? This 40-way flat ribbon cable is commonly used with computers and audio and digital equipment. It provides a simple solution to mass termination. 

Features:

28 AWG
Extended temperature rating: -20oC to 85oC
Insulation: Polyvinyl chloride (PVC)
Stranded copper wire
Sold Per 2 Meter length

What's in the box?:

2m x Flat Ribbon Cable
R159.90  Inc VAT
Potentiometer single turn carbon linear PCB 2K (potentio 2k)
Description:

Mainly used to control electrical devices such as volume controls on audio equipment.
Creates a variable resistance that you can change by turning the knob

Specifications:
  • Single turn 2K
  • Linear
  • Carbon
  • PCB type
  • 5mm pitch pin
  • Spline shaft
  • 17mm diameter
  • 0.2W
  • Shaft length 10mm
  • Shaft diameter 6mm

What's in the box?:

1 x Potentiometer

Resources:

Python Library
Definition, Types, And Working Principle
R9.90  Inc VAT
Hall Water Flow Sensor Flowmeter Water Control 2MPa (flow sensor)
Description:

This product is mainly used for water metering
High amplitude ≥ 4.6V
Low amplitude ≤ 0.5V
Electric strength 1250V/min
Insulation resistance ≥ 100MΩ
Hydrostatic pressure testing ≤ 2.0Mpa

Specification:

The lowest rated working voltage: DC4.5 5V-24V
Maximum operating current: 15 mA (DC 5V)
Working voltage range: DC 5~18 v
Load capacity: ≤ 10 mA (DC 5V)
Use temperature: ≤ 80°C
Operating humidity range: 35%~90%RH (no frost)
Allowing pressure: pressure 2.0Mpa
Temperature: -25~ 80 °C
External threads: 1/2"
Outer diameter: 20mm
Intake diameter: 9mm
Outlet diameter: 12mm

Application:

Water heaters, water vending machines, flow measurement

Package included:

1x Water flow sensor

Flow sensor Wiki
An instructable on how to use the Flow Sensor with Arduino
Adafruit experiment connecting the Flow Sensor to a Raspberry Pi

https://www.ardumotive.com/water-flow-sensor-en.html

RPi: https://www.youtube.com/watch?v=8JXd-2_zJQ0

R79.90  Inc VAT
MS Weather Station Anemometer for windspeed (MS anemometer)
Description:

MS Anemometer as used in the Raspberry Pi foundation weather station project to measure windspeed.
Hack this component to form part of your weather station.

Specifications:

Sensor3-cup anemometer
Measurement DescriptionWind speed
Range0 to 45 m/s (0 to 100 mph)
Starting Threshold0.45 m/s (1.0 mph)
Accuracy0.11 m/s (0.25 mph) or 1.5%
Contact Rating10 mA (maximum)
Operating Temperature Range-50° to 70°C
Distance Constant
  • < 4.5 m (15 ft) standard
  • < 1.5 m (5 ft) optional fast response
Cable DescriptionQuick-connect connector with vinyl jacketed, shielded cable


What's in the box?:

1 x Anemometer

Resources:

View the project details here
And some more help here
Article specific to the anemometer only
R489.90  Inc VAT
Discontinued: Outer Diameter 12mm x 500mm Cylinder Linear Rail/Shaft (AW Rail 12x500mm)
Specifications:
MaterialBearing steel, GCr15
HardnessAbout HRC62°
Precisiong6 h6
Surface roughnessBelow 1.5uM
Surface hard-thickness0.8μ~3mm
Outer diameter8mm
Length500mm
StraightnessBelow 5μM/100mm
Hard chrome thickness3.0μM(Rmax)
ColorSilver
quantity1pcs

Features:
Surface is smooth.
Durable and easy to install.

 
Package includes:
1 X Linear Optical Axis
R301.62  Inc VAT
ANENG AN8002 Digital Multimeter AC/DC Current Voltage Frequency Resistance Temperature ℃/℉ (multimeter AN8002)
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
R629.90  Inc VAT
6mm Shaft Hole Plastic Potentiometer Knob Black (Potentiometer knob)
Description:

Give your potentiometers some curb apeal. Ideal for use with our range of potentiometers.

Specifications:

Knob top diameter : 11 mm / 0.43 inch
Knob base diameter : 14.5mm / 0.57";
Shaft insert diameter : 6 mm / 15/64"
Knob total height : 14 mm / 0.55 inch
Main color : black, white;
Weight : 12G

What's in the box?:

Quantity : 1 knob

Resources:

Python Library
Definition, Types, And Working Principle
R15.90  Inc VAT
Potentiometer single turn carbon linear PCB 1K (potentio 1k)
Description:

Mainly used to control electrical devices such as volume controls on audio equipment.
Creates a variable resistance that you can change by turning the knob

Specifications:

  • Single turn 1K
  • Linear
  • Carbon
  • PCB type
  • 5mm pitch pin
  • Spline shaft
  • 17mm diameter
  • 0.2W
  • Shaft length 10mm
  • Shaft diameter 6mm
What's in the box?:

1 x Potentiometer

Resources:

Python Library
Definition, Types, And Working Principle
R9.90  Inc VAT
5K Ohm 2W Multi Turn Potentiometer 10 Turns (Blue 5K potentiometer)
Description:

This 10 turn potentiometer 5K Ohm is widely used to adjust timer, speed, temperature in all kinds of equipment such as medical instruments, welding machines, wire-cutting machines and virtually any industrial control system that requires a potentiometer.

Specifications:

Material: Plastic and Metal
Shape:Round
Resistance: 5K ohm
Resistance tolerance: 5%
Independent linear accuracy: 0.25%
Power: 2W
Max. Operating Voltage: 315V
Storage temperature: -55 ~ 125℃
Rotating life: 1000000
Load life: 1000 hours
Angle of Rotation :3600±5°

Package includes:

1 x 5K Ohm potentiometer set
  • 1pcs 10 turn potentiometer
  • 1pcs rotary dial knob
  • 1pcs small Hexagonal spanner

Resources:
Python Library
Definition, Types, And Working Principle
R90.69  Inc VAT
10K Ohm 2W Multi Turn Potentiometer 10 Turns (Blue 10K potentiometer)
Description:

This 10 turn potentiometer 10K Ohm is widely used to adjust timer, speed, temperature in all kinds of equipment such as medical instruments, welding machines, wire-cutting machines and virtually any industrial control system that requires a potentiometer.


Specifications:

Material: Plastic and Metal
Shape: round
Turns: 10 turns
Technics: wirewound
Independent linearity: ±0.25%
Resistance: 10K Ω
Resistance tolerance: ±2 ~ ±10%
Power-rating: 2W
Angle of rotation: 3600±5°
Rotational life (no load) cycles: 1,000,000
Shaft diameter: 6.35mm
Operating temperature range: 1℃ ~ 125℃
Storage temperature: -55 ~ 125℃

Package includes:

1 x 10K Ohms potentiometer set
  • 1pcs 10 turn potentiometer
  • 1pcs rotary dial knob
  • 1pcs small Hexagonal spanner


Resources:

Setup
Python Library
Definition, Types, And Working Principle
R89.90  Inc VAT
130A High Precision DC Watt Meter And Power Analyzer (DC Power analyzer)
Description:

We found this little unit great to measure our incoming solar power versus outgoing battery load on a second unit

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
R359.90  Inc VAT
100A 22000W Power Monitor Module AC Meter Panel 45-65Hz Test Voltage AC 80-260V (AC power meter clamp)
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.
 
Product TypePZEM-022
Accuracy1.0 grade
Display Size51mm x 30mm
Product Size89.6mm x 49.6mm x 24.3mm
Weight150g(with split CT)
Test Range

1.  Voltage:  80~260V
2.  Current:  0~100A 
3.  Power: 0~22kW
4.  Energy:  0~999kWh

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. 
R419.90  Inc VAT
MS Weather Station wireless rain meter w/ thermometer, rain gauge Weather Station for in/out temperature (Rain weather station)
Description:

The great advantage to owning a wireless home weather station is that the sensor can be simply mounted in virtually any outdoor location and the display can be conveniently located anywhere in the home.
Know how much rain you got overnight with this digital wireless rain station

Specifications:

1).Outdoor wireless sensor (range up to 100 meter)
2) Detail display of rainfall data in 1hour, 24hour, week, month
   and total since last reset(user selectable in inch or mm) 
3) Indoor  and outdoor temperature (°F to °C)
4) Time and date with manual setting option 
5) 12 /24 hour time mode 
6) Calendar 
7) Time zone setting 
9)Time alarm    
9) Free standing

Specifications:

1) Rainfall display range: 0 to 19,999mm
2) Outdoor temperature range: -40 ~ 65°C (-40°F to 149°F)
3) Indoor temperature range: -9.9 ~ 60°C (-15.8°F to 176°F)
4) Temperature accuracy: ±1.0°C5) Power requirements:
  a) Receiver: 2 x "AA" alkaline batteries (not included)
 
b) Rain gauge: 2 x "AAA" alkaline batteries (not included)
5)Transmission range: up to 100meters( 330feet)
6) Transmission frequency: 433MHz


Package includes:

1 x Rain Gauge
1 x Receiver
1 x User Manual
2 x Screws

R569.90  Inc VAT
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