20Pcs DS18B20 Digital Temperature Sensor Module For Arduino Description: This is DS18B20 digital temperature sensor module for Arduino -55 C~125 C Digital signal output Detect ambient air temperature Compatible with Arduino DIY project Main chip: 18B20 temperature sensor Material: PCB Specification: Resolution adjustment range :9-12 With mounting holes for easy installation， Aperture: 2.5 Temperature measuring range: -55 ~ +125 \u2103 Temperature measurement accuracy: 0.5 \u2103 Working voltage: DC 5V Size: 28mm x 12mm x 10mm Package included: 20 x DS18B20 digital temperature sensor module