Gcircus 157.5"4mIP65 Waterproof Digital Thermal Probe Temperature Sensor DS18B20 for Rasberry Pi or Arduino Waterproof : IP65 to protect against ingress of dust and against standard water Power supply range:3.0V-5.5V Output lead: red (VCC), white(DATA) , black(GND) Total length about:400cm(157.5 inch