1 * 4000mAh Li-SOCL2 Battery Battery Life: Up to 10 Years Non-contact Detection High Sensitive Based on Capacitive Sensing Principle Strong Anti-interference Probe with 2-electrode Sheet Easier Deployment Base on Full Liquid Calibration Cable Length: 1.0m NFC Enabled Operating Temperature: -20°C ~ 60°C Humidity: 0% to 95% RH (non-condensing) Transceiver: IP67 Sensor: IP30