Temperature sensor DS18B20 waterproof cable 1m 2pcs DS18B20 in a waterproof housing on a 1 meter cable - is a digital temperature sensor operating at 3.3V and 5V. Possibility to connect several sensors on 1 cable: The sensors have a 1-wire interface that allows communication using only 1 data cable and a combination of multiple sensors on the same cable, each DS18B20 sensor has its own, unique serial number, so they can be distinguished from each other - this reduces the number of wires and saves microcontroller ports. The connection method is shown in the product gallery. DS18B20 To obtain a correct temperature reading, a 4.7 k pull-up resistor should be used between the VCC terminal (red) and the DATA terminal (yellow) - the resistor is not included in the kit. The sensor sold can work in parasitic mode - i.e. it can be connected using 2 wires, the connection method is shown in the gallery. Specification: Power supply 3.3-5V Measuring range: -55C to 125C Measuring accuracy: 0.5C in the range of -10-85C Measuring accuracy: 1C in the range of -30-100C Measuring accuracy: 2C in the range of -55-125C Resolution: 9 to 12 bits VCC, GND, DATA wires cable: 1m Housing type: waterproof