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Temperature measurement range: -55°C ~ +125°C
R19.90  Inc VAT
This little sensor is a great way to add UV light sensing to any microcontroller project.
R119.90  Inc VAT
My kids kept forgetting to switch off the pantry light. This was the perfect solution for me. Also great for an automated front door light especially when you dropped your keys.
R149.90  Inc VAT
Connect up to 3 Current and 1 temperature sensor to a raspberry pi.
R569.90  Inc VAT
Connect up to 3 Current and 1 temperature sensor to a raspberry pi.
R469.90  Inc VAT
LJ12A3-4-Z/BY PNP DC6-36V Inductive Proximity Sensor Detection Switch (Inductive Blue Proximity Sensor)
Features :

Proximity switch, also known as non-contact proximity switch, is the ideal electronic switch sensor.
Used for detecting metal in proximity
Non-contact, no pressure
Accurately reflect the position of a moving mechanism.
Measure positioning accuracy, operating frequency, service life.
Easy to install and suitable for harsh environments.
Adjustable.

Specifications :

Model : LJ12A3-4-Z / BY
Operating Voltage : DC 6-36V
Output Type : PNP
Detection object : metal objects
Detection distance : 4 mm
Output Current : 300 mA
Response Frequency : 0.5KH
Working temperature : Temperature range -30 ° to +60 °
Dimensions : 12 mm screw diameter
Cable length : about 115 cm
Material : Metal and plastic

Brown - Live
Blue - Ground
Black - Signal

Package includes :

1 x LJ12A3-4-Z/BY Sensor Detection Switch
R69.90  Inc VAT
Discontinued: E3JK-R4M1 Photoelectric Reflection Sensor Switch DC 10-24V 3A (E3JK-R4M1 Photoelectric Reflection Sensor)
Description:

E3JK-R4M1 Sensor Switch Specular Reflection Photoelectric DC 10-24V 3A

Photoelectric switch is used to test if the beam is blocked or reflected.

Specifications:
VoltageAC 250V / DC 10-24V
Output Current3A
Ambient temperature0-75 (℃)
Size5x5x2cm
Separate Amplifier type of structure
Specular eflection type detection method

 


Advantages:
Small size, multi-function, long life, high precision, fast response,
detection distance and anti-light, electricity, magnetic interference capability.

Package includes:
1x Sensor Switch Set (including screws)
R251.18  Inc VAT
DS18B20 Temperature Sensor TO-92 (DS18B20 Temperature Sensor)
Specification:

Temperature measurement range: -55°C ~ +125°C
Accuracy: ± 0.5°C
Encapsulation: TO-92

Package includes:

1 x DS18B20

Adafruit's Raspberry Pi Lesson 11. DS18B20 Temperature Sensing

Temperature measurement range: -55°C ~ +125°C
R19.90  Inc VAT
Discontinued: Adafruit VEML6075 UVA UVB and UV Index Sensor Breakout (AW UV Index Sensor)

This little sensor is a great way to add UVA and UVB light sensing to any microcontroller project. The VEML6075 from Vishay has both true UVA and UVB band light sensors and an I2C-controlled ADC that will take readings and integrate them. The sensor also comes with calibration registers so you can easily convert the UVA/UVB readings into the UV Index.

Compared to our other UV sensors, this one actually does a pretty good job of getting accurate UV data. Unlike the Si1145, it has a real UV sensor, and in contrast to the VEML6070, it has dual band sensors and an index calculation algorithm. So far this is the best UV sensor we've got!

This UV sensor works great with 3 or 5V power or logic, its nice and compact, and its easy to use with any I2C-capable microcontroller. Adafruit have example code and libraries for Arduino and CircuitPython/Python.

Each order comes with one assembled PCB with a sensor, power regulator, level shifting and a small piece of header. Some light soldering is required to attach the header but it's a fast task!

TECHNICAL DETAILS

  • Uses I2C address 0x10
  • Product Dimensions: 17.0mm x 15.3mm x 2.9mm / 0.7" x 0.6" x 0.1"
  • Product Weight: 0.8g / 0.0oz
This little sensor is a great way to add UV light sensing to any microcontroller project.
R119.90  Inc VAT
MS Spare parts kit (outdoor unit) for DIY Weather Station (Weather sensor kit)

Description:

This kit includes the sensor parts to build your own DIY weather station

Includes the below parts:


Have a look at the Rasberry Pi Foundation weather project for a wired solution to use these sensors:
https://projects.raspberrypi.org/en/projects/build-your-own-weather-station

For the brave there is a discussion on sniffing the signal from the RF sender:
https://www.raspberrypi.org/forums/viewtopic.php?t=96780

And some good reading at https://rayshobby.net/wordpress/reverse-engineer-wireless-temperature-humidity-rain-sensors-part-1/
R1,399.90  Inc VAT
HX711 Module 20kg Aluminum Alloy Scale Weighing Sensor Load Cell (20kg scale sensor)
Comprehensive error: 0.05% F.S
Rated output temperature drift: ≤ 0.15% F.S / 10 ℃
Output Sensitivity: 1.0 ± 0.1 mV / V
Zero drift: 0.05% F.S (1 minute)
Zero point temperature drift: 0.2% F.S / 10 ° C
Zero output: ± 0.1 mV / V
Input impedance: 1000 ± 50Ω
Output impedance: 1000 ± 50Ω
Overload capacity: 150% F.S
Recommended excitation voltage: 5-10V
Operating temperature range: -10 ~ +50 ℃
Application: for high-precision small-scale weighing for micro-automatic testing equipment, micro-weighing equipment, pushing and pulling equipment, pull pressure test
Red: E +
Black: E-
White: A-
Green: A +


Package includes:

1 x Weighing Sensor Load Cell
1 x HX711 Module

Resources:
Building a Raspberry Pi weight scale
Python Library
Building an Arduino weight scale
R59.90  Inc VAT
Discontinued: 2m K Type 0~600 Degree Thermocouple 100mm Probe Sensor (AW 3m K Type temp probe)
Specifications : 

Type:K type
Cable internal insulation: Fiberglass
Probe material:Stainless Steel
Probe diameter:  5mm
Threads size:  8mm
Probe length: 100mm
Cable length: 2M
Connector: spade type
Operating temperature: 0~400℃
 

Package includes:
1 x K-Type Thermocouple

Wiring and Setup
Does not include
MAX31855 K Type Thermocouple Breakout Board



R109.90  Inc VAT
Discontinued: MAX31855 MAX6675 SPI K Thermocouple Temperature Sensor Module Board (AW K Thermocouple Temp board)
Features:
 
1. Thermocouples are very sensitive, requiring a good amplifier with a cold compensation reference.
2. This product does everything for you and can be easily interfaced with any microcontroller even one without an analog input.
3. This breakout board hosts the chip itself, a 3.3V regulator with 10uF bypass capacitors and level shifting circuitry.
4. Comes with a 2 pin terminal block (for connecting to the thermocouple) and pin header.
 
Description:
 
1. Measurement temperature range: -200°C to +1350°C
2. SPI interfaces, high-speed transmission
3. The input voltage is 3-5V DC
4. Direct digital output temperature value, no amplifiers, no ADC
5. 14-bit resolution, 0.25 degree temperature accuracy
 
Note:
 
1. Works with any K type thermocouple
2. K thermocouples have about ±2°C to ±6°C accuracy
3. Internal temperature reading
4. 3 to 5v power supply and logic level compliant
5. SPI data output requires any 3 digital I/O pins
 
Packing includes:
 
1 x Thermocouple Breakout Board
R99.90  Inc VAT
MLX90614ESF AAA Non Contact Human Body Infrared IR Temperature Sensor (Infra red temp sensor)
The MLX90615 is an Infra Red thermometer for non contact temperature measurements. Both the IR sensitive
thermopile detector chip and the signal conditioning chip are integrated in the same TO-46 can package.
Thanks to its low noise amplifier, 16-bit ADC and powerful DSP unit, a high accuracy and resolution of the
thermometer is achieved. The thermometer is factory calibrated with the digital SMBus compatible

Features
  1.  Small size, low cost
  2.  Easy to integrate
  3.  Factory calibrated in wide temperature range: -40…85C for sensor temperature and -40…115C for object temperature
  4.  High accuracy of 0.5C over wide temperature range (0...+50C for both TA and TO )
  5.  High (medical) accuracy calibration
  6.  Measurement resolution of 0.02C
  7.  SMBus compatible digital interface
  8.  Power saving mode
  9.  Customizable PWM output for continuous reading
  10.  Embedded emissivity compensation
  11.  3V supply voltage

Datasheets available at https://github.com/arduinolearning/Datasheets/blob/master/MLX90614.pdf
R249.90  Inc VAT
SONOFF® TH16 DIY 16A 3500W WIFI Temperature Humidity Thermostat Module APP Switch Socket + sensor unit (Sonoff TH16 dual + sensor)
Overview - Control Unit

Sonoff TH10/16 is a Sonoff version that can monitor and set temperature and humidity through the APP eWeLink. Just as the name indicated, the new version Sonoff TH device supports two power supply specifications- 10A or 16A. It supports preset a temperature and humidity range, when the temperature and humidity of the environment falls into the range, it will automatically turn on or turn off connected devices.

The device supports connecting to three kinds of temperature and humidity sensors (AM2301, DS18B20, DHT11). Actually, Sonoff TH 10A/16A Sonoff TH 10A/16A can work as a Sonoff when without connecting to sensors. But compared to Sonoff, Sonoff 10/16 is more safer, less radiation and in bigger size, easy operation. Most importantly, with the support of latest ewelink app, you can create chains of simple conditional statements(Smart Scene). This means you can use the them with temperature and humidity sensors (AM2301, DS18B20, DHT11) to collect data, while these data can be shared to other ITEAD smart home devices(Sonoff, Sonoff RF, Sonoff SV, Slampher, smart socket, etc.) under your account, thus other devices can use the data to control connected appliances. This device is perfect to work with electric fan, air conditioner, humidifier. Please note that this version does not have 433 RF function.

Features:

- Supports 90~ 250V AC input
- Support max 10A input
- Power: 3500W(16A)
- Support fast configure SSID and password connection through APP
- Support automatic connect to server, register and update status info.
- Support tracking device status and timely remote control through APP
- Support setting countdown, single and repeat timing tasks
- Support real-time temperature and humidity displaying
- Support 3 temperature and humidity sensors (AM2301, DS18B20, DHT11)
- Support preset temperature and humidity to turn on/off
- Support group management, scene, smart scene

WIFI Characteristics:

- 802.11 b/g/n
- Built-in Tensilica L106 ultra-low power consumption 32-bit micro-MCU, dominant frequency support  80 MHz and 160 MHz, support RTOS
- Built-in TCP/IP protocol stack
- Built-in TR switch, balun, LNA, power amplifier and matching network
- Built-in PLL, voltage regulator and power supply management components, 802.11b mode +20 dBm output power
- A-MPDU&A-MSDU aggregation and 0.4μs guard interval
- WiFi @ 2.4 GHz, supports WPA / WPA2 safe mode
- Support cloud OTA upgrade
- Support STA/AP/STA + AP mode
- Standby power consumption is less than 1.0 mW (DTIM3)
- Operating temperature range: -40℃~125℃

Overview - Sensor Unit

Measuring range:
Temperature: -40℃~80℃
Humidity: 0-99.9% RH
Accuracy: (in 25℃)
Temperature: ±0.5℃
Humidity: ±3% RH (10...90RH)

Sensor type: Temperature resistive sensor, Humidity capacitive sensors
Operating temperature range: 40℃~80℃
Power supply: 3.3V~5.2V
DC (5V recommended)

Package includes:

1 x Thermostat Module
1 x AM2301 Sensor Module (Cable length: about 50cm)

R349.90  Inc VAT
Discontinued: E27 9W PIR Infrared Motion Sensor LED Lamp AC 85 to 265V (AW PIR 9W Led globe)
Specifications:
Bulb base:E27
Voltage:AC85-265V
Wattage:5W / 7W / 9W
LED chip:5730
LED qty:24pcs(9W)
Light color:White
Color temperature:5500-6500K
Lumen:220LM / 290LM / 350LM
Beam angle:120-180°
Detection angle:120°
Delay time:25±1s
Dimmable:NO
Material:PP+PVC
Dimension:80mm x 136mm(9W)
 
Features:
Automatic PIR motion detection sensor.
Durable and energy-saving.
High sensitivity, bright light and low consumption
Suitable for corridor, pathway, stairs, garden, yard, etc.
 
Please note:
The lamp should be keep far away from high temperatures
 
Working principle:
When you are in sensor range the light will go on for +- 25 seconds.
During the day the lamp will not work.
 
Package Includes:
1 x E27 9W LED Light Bulb
My kids kept forgetting to switch off the pantry light. This was the perfect solution for me. Also great for an automated front door light especially when you dropped your keys.
R149.90  Inc VAT
3.3-5V 3-Wire Vibration Sensor Module (3 wire vibration sensor)
Features:
 
Comparative output, clean signal, good waveform, strong driving ability, more than 15mA.
Working voltage: 3.3V to 5V
Output form: digital switch output (0 and 1)
Equipped with fixed screw hole, easy to install
PCB board size: 32mm x 14mm
Uses the LM393 wide voltage comparator

When the VCC and GND are connected, the power indicator will light up.

Put the module on the desktop, adjust the blue potentiometer on the board until the on-board switch indicator lights up, and then slightly turn back the potentiometer untill the indicator light turns off. Hit the desktop with your hand so the vibration shocks the sensor, the indicator light will go on. Vibration stops, indicator light will turn off.


Module connection details:
 
1. VCC: connect power positive
2. GND: connect power negative
3. DO: digital signal output
 
Application:
 
It is used for all kinds of vibration triggering, theft alarm, intelligent car, electronic building block.....
Please note that the trigger time is short when small vibration is induced, not enough to drive the relay.

Raspberry Pi Python example

 
Package includes:
 
1 x Vibration sensor module
R19.90  Inc VAT
HX711 24bit AD Module + 1kg Aluminum Alloy Scale Weighing Sensor Load Cell Kit (1kg scale load cell)
Features:

Size: 33mm x20mm / 1.29 "x0.78"
Range: 1kg
Operating temperature: -20℃ ~ +85
Ambient Humidity: 10% -80RH
Voltage range: 2.6 ~ 5.5V

Weight: 32g

Package includes:

1 x Weighing Sensor
1 x HX711 Module

Resources:
Building a Raspberry Pi weight scale
Python Library
Building an Arduino weight scale
R59.90  Inc VAT
MS Professional Wireless Weather Station Touch Panel w/ Solar sensor, w/ PC interface (PC link weather station USB)

Product Description

Professional Weather Station with PC interface, 433Hz
Touch panel
 with stylus.
Transmitter (outdoor unit) powered by solar

Features: 
1) Touch screen panel (touch by stylus)
2) USB port for easy connection to your PC 
3) All the weather data from the base station and weather history data with user adjustable measuring intervals can be recorded and uploaded to your PC 
4) Free PC software for transfer weather data to PC 
5) Rainfall data (inches or millimeters): 1-hour, 24-hour,one week,one month and total since last reset. 
6) Wind chill and Dew point temperature display ( °F or °C) 
7)Records min. and max. wind chill and Dew point with time and date stamp 
8) Wind speed (mph, m/s, km/h, knots, Beaufort) 
9) Wind direction display with LCD compass 
10) Weather forecast tendency arrow 
11) Weather alarm modes for: a) Temperature b) Humidity c) Wind chill d) Dew point e) Rainfall f) Wind speed g) Air pressure h) Storm warning 
12) Forecast icons based on changing barometric pressure 
13) Barometric pressure (inHg or hPa) with 0.1 hPa resolution 
14) Wireless outdoor and indoor humidity (% RH) 
15) Records min. and max. humidity with time and date stamp 
16) Wireless outdoor and indoor temperature (°F or °C) 
17) Records min. and max. temperature with time and date stamp 
18) 12 or 24-hour time display 
19) Perpetual calendar 
20) Time zone setting 
21) Time alarm 
22) High light LED backlight 
23) Wall hanging or free standing 
24) Synchronized instant reception 
25) Low power consumption (over 2 years battery life for transmitter)
26) RCC function (not included on this model)
27) solar powered transmitter (outdoor unit)

 

Package includes: 
1) Receiver 
2) Four outdoor sensors: thermo hydro transmitter, wind speed sensor, wind direction sensor and rain sensor 

Specifications: 
1) Outdoor temperature range: -40.0 °C to + 65.0 °C (-40 °F to +149 °F) 
2) Indoor temperature range: 0 °C to + 50.0 °C (32 °F to +122 °F) 
3) Humidity range: 10% to 99% (1% resolution) 
4) Rain volume display: 0 - 9999mm (show OFL if outside range) 
Resolution : 0.3mm (if rain volume < 1000mm) ,1mm (if rain volume > 1000mm) 
5) Wind speed: 0~100mph (show OFL if outside range) 
6) Measuring range air pressure: 27.13inHg - 31.89inHgResolution : 0.01inHg 
7) Alarm duration : 120 sec 
8) Transmission range up to 100m (330 feet) 
9) Power consumption:
a) Receiver: 3 x AA alkaline batteries (not included)       b) Sensor: 2 x AA alkaline batteries (not included) 
10) Transmission frequency: 433MHz

R2,190.90  Inc VAT
Discontinued: Anet® Auto Leveling Position Heated Bed Sensor For Anet A8 3D Printer (AW Anet A8 auto level sensor)
Please note: The brand of this sensor is RIKO and not ROKO

Features:


- Leveling automatically
- For Anet A8 3D printer

- Wire length: 150mm
- support video available at https://www.youtube.com/watch?v=uMQcnMVPcX4

Package Includes:

1 x Auto Leveling Position Sensor
R299.90  Inc VAT
GY-BME280-3.3V High Precision Atmospheric Pressure Sensor Module BME280 (CJMCU-280E BME280 pressure)
Features:

Relative humidity range: 0 ~ 100%
The temperature range: -40°C ~ +85°C
Humidity measurement response time: 1S
Hysteresis: 2% relative humidity
Pressure range: 300 ~ 1100 hPa
Absolute pressure accuracy: absolute ± 1hPa (after soldering)
Absolute temperature accuracy: ±0.5°C (at 25°C)

Communication interface: I2C, SPI

Package includes:

1 x Sensor

The Raspberry Pi Foundation Project
R59.90  Inc VAT
RPICT3T1 30 Amp Raspberrypi 3x Current Sensor Adaptor 1 x temperature (30A 3 current 1 temp board)

RPICT Series Documentation

RPICT3T1 Documentation


How to setup the serial port on the RPi: http://lechacal.com/wiki/index.php/Howto_setup_Raspbian_for_serial_read

FAQ available at http://lechacal.com/wiki/index.php/Frequently_Asked



Specifications:

  • 3x Current sensor ports
  • 1x DS18B20 temperature port
  • Arduino IDE programmable
  • EmonCMS compatible.
  • CSV serial output
  • Attiny84 Microcontroller
  • View/record data using Linux/Python/Emoncms/InfluxDB

Please Note: Raspberry Pi and sensors are not included

Package Content

  • 1 RPICT3V1 Unit.
  • 2 Mounting Spacers
  • 4 Mounting Screws

Recommended Sensors

Default Configuration

IMPORTANT NOTE: The board is sold by default with CSV output. Emoncms output will have to be configure with the utility provided in the wiki (see documentation).

Parameters:


Node ID: 11
Scan interval: 5 seconds
Output: Emoncms
Voltage: 240V
Default loaded sketch freely available on the wiki page.

Emoncms Ouput:

Connect up to 3 Current and 1 temperature sensor to a raspberry pi.
R569.90  Inc VAT
RPICT3T1 100 Amp Raspberrypi 3x Current Sensor Adaptor 1 x temperature (100A 3 current 1 temp board)

RPICT Series Documentation

RPICT3T1 Documentation


How to setup the serial port on the RPi: http://lechacal.com/wiki/index.php/Howto_setup_Raspbian_for_serial_read

FAQ available at http://lechacal.com/wiki/index.php/Frequently_Asked



Specifications:

  • 3x Current sensor ports
  • 1x DS18B20 temperature port
  • Arduino IDE programmable
  • EmonCMS compatible.
  • CSV serial output
  • Attiny84 Microcontroller
  • View/record data using Linux/Python/Emoncms/InfluxDB

Please Note: Raspberry Pi and sensors are not included

Package Content

  • 1 RPICT3V1 Unit.
  • 2 Mounting Spacers
  • 4 Mounting Screws

Recommended Sensors

Default Configuration

IMPORTANT NOTE: The board is sold by default with CSV output. Emoncms output will have to be configure with the utility provided in the wiki (see documentation).

Parameters:


Node ID: 11
Scan interval: 5 seconds
Output: Emoncms
Voltage: 240V
Default loaded sketch freely available on the wiki page.

Emoncms Ouput:

Connect up to 3 Current and 1 temperature sensor to a raspberry pi.
R469.90  Inc VAT
Soil Moisture Sensor 12V DC Relay Control Module Automatic watering switch (automatic water relay sensor)

When the soil moisture is lower than preferred setting, the relay will automatically pull in, start the sprinkler, water pump etc. until the moister reaches the desired humidity level and automatically stop.

 

Product use:

Through the potentiometer, adjust to the desired soil moisture level

Electrical parameters:
Supply voltage: 12VDC
Input current: more than 100mA
Relay Load Max: 10A 250V AC or 10A 30V DC
 
Module instruction:
1 sensors applied to the detection of soil moisture;
Module
2. Blue potentiometer is used to adjust soil moisture level, clockwise adjustment and control the humidity will be bigger, counterclockwise smaller;
3. Due to module delay function, adjust the humidity value, wait about 5-8 seconds, see if the the relay state changed, the green LED lamp will also have corresponding change, until adjusted to meet the requirements.
 
Package Includes:
1 x Soil moisture control module
1 x Soil sensor
2 x 20cm long DuPont lines
R69.90  Inc VAT
TCRT5000L Reflective Infrared Sensor Photoelectric Switches (infrared switch)
ColorBlack + blue
MaterialPlastic + iron
SpecificationDetecting range: 0.591" (15mm); Detecting method: Reflective; Collector Emitter Voltage: 70V; Collector Current: 100mA; Forward Current: 60mA; Output type: Phototransistor; Working temperature: -25~85'C
FeaturesCompact construction, sense the presence of an object by using the reflective IR beam from the object
ApplicationPerfect for line tracking robot car DIY project
Packing List1 unit
R3.90  Inc VAT
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