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  • Analog pH Meter Kit
    INTRODUCTION   Need to measure water quality and other parameters but haven't got any low cost pH meter? Find it difficult to use with Arduino? Our analog pH meter, specially designed for Arduino controllers and has convenient and practical connector and a bunch of features. Instant connection to your probe an your Arduino to get pH measurements at ± 0.1pH (25 ℃). For most hobbyist this great accuracy range and it's low cost makes this a great tool for biorobotics and other projects! It has an LED which works as the Power Indicator, a BNC connector and PH2.0 sensor interface. To use it, just connect the pH sensor with BND connector, and plug the PH2.0 interface into the analog input port of any Arduino controller. If..
    S$55.90
  • Moisture Sensor
    Description: This is a simple water sensor can be used to detect soil moisture when the soil moisture deficit module plant waterer device, so that the plants in your garden without people to manage.   Test procedure First , we use 5v voltage to the  Soil moisture sensor on pin VCC and GND,the green Power Indicator will be turned on, then we plug it into a small cup, which already fulled with dry soil, and then we pour some water into it,you will find the red led light is on now,if it change back to dry, it will off. Meanwhile,   and if you test the voltage on the pin of DO,  it will change from 4.5v to about 0.15volt, so it is working now, even you can use it to make a automatic equipment to water your flower!     Fe..
    S$6.70
  • Non-contact Liquid Level Switch
    INTRODUCTION This non-contact liquid level switch can be triggered when the liquid level fall below the sensor attached to the outside surface of a non-metal container.   Unlike traditional liquid level sensors, it does not need to be immersed into liquid. So, in this way, liquid will not be contaminated and the life of the sensor will not be reduced so fast because of the contact between liquid and sensors.   The sensor is very sensitive and stable, and the output current is upto 100mA which can directly drive a relay.   You can use this switch to monitor the condition of your water machine or make a water-drinking reminder by attaching it to the surface of your cup.  ..
    S$27.00
  • Rain Module Sensor
    Voltage: DC 5V; Power indicator, output LED indicator; TTL output; TTL output effective signal is low level; Drive capability: about 100mA; Can directly drive relay, buzzer, fan; The sensitivity can be adjusted by potentiometer; The LED will light up the high level as no rain; As rains, output low level, LED is on. Dimensions: 2.17 in x 1.57 in x 0.08 in (5.5 cm x 4.0 cm x 0.2 cm) Weight: 0.25 oz (7 g) ..
    S$6.70
  • Water Sensor Module Depth for Arduino (Red)
    Water Level Sensor Module Depth for Arduino (Red) Feature: Water Sensor water level sensor is an easy-to-use, cost-effective high level/drop recognition sensor, which is obtained by having a series of parallel wires exposed traces measured droplets/water volume in order to determine the water level. Easy to complete water to analog signal conversion and output analog values can be directly read Arduino development board to achieve the level alarm effect. Specifications: Product Name: water level sensor Operating voltage: DC3-5V Operating current: less than 20mA Sensor Type: Analog Detection Area: 40mmx16mm Production process: FR4 double-sided HASL Operating temperature:10℃-30℃ Humidity: 10% -90% non-condensing Product Dimensions: 64mmx19mm Net Weight:..
    S$6.90