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This is a precise, fully isolated pH circuit constructed using high quality components and designed ..

$49.95 USD $59.95 USD

This is an optical water sensor which is extremely accurate and reliable making them a great choice ..

$10.95 USD

This float level switch is simple and easy to use. It has a mechanical switch that can be Up=On or D..

$3.99 USD

DHT22 Digital Temperature Humidity Sensor, used for accurate readings on arduino and other microcont..

$8.95 USD

The non-contact water sensor is great for monitoring the levels in your ATO reservoir as it can sens..

$14.95 USD

DS18B20 1-WIRE Waterproof Digital Temperature Sensor Probe. Flexible, Better thermal conductivi..

$6.95 USD

DS18B20 1-WIRE Waterproof Digital Temperature Sensor Probe. Flexible, Better thermal conductivi..

$8.95 USD

DS18B20 1-WIRE Waterproof Digital Temperature Sensor Probe. Flexible, Better thermal conductivi..

$10.95 USD

DS18B20 1-WIRE Digital Temperature Sensor. Works with Arduinos and other microcontrollers and ..

$4.59 USD

This water level sensor board is easy to use and a cost effective solution. Great for detecting wate..

$3.49 USD

Fits 1/2" outer diameter tubing.Adjustable width for mounting on tank or reservoir. Includes ec..

$8.00 USD

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