Ds18b20 sonoff temperature sensor is a universal switch for your smart home system to remotely and Power up automatically/off any appliances by phone app. It can monitor real, Time temperature, When the temperature of the environment falls within it will, The range automatically turn on or off the connected devices. Introducing a waterproof ds18b20 temperature sensor. The probe uses the original ds18b20 temperature sensor chip. It is waterproof, Moisture, Proof, And anti, Rust with a high, Quality stainless steel tube encapsulated. No other components, Unique single bus interface. Its power supply range 3. 0v to 5. 5v. The probe adopts a ds18b20 temperature sensor chip. This probe constructed using stainless steel which is waterproof, Moisture, Proof, And anti, Rust. Stainless steel housing of 6 x 50mm and lead length of 100cm. Kindly be aware that the temperature probe requires no external components which features a single bus interface. High, Quality stainless steel tube encapsulation waterproof moisture, Proof prevents rust. Its probe is made of high, Quality stainless steel effectively waterproof, Moisture, Proof, And anti, Rust the probe adopts a ds18b20 temperature sensor chip and good sealing performance, Ensuring its high sensitivity and minimal temperature delay.