More Information Model DCH-B122 Condition New Product Type Smart Home Connection See Description Colour See Description Features Product Description Smart Motion Sensor Device Interfaces Zigbee™ wireless, Reset button, Tamper key Standard Zigbee™ 3.0, AES 128-bit encryption Wireless Frequency Range Zigbee™ frequency: 2.4 GHz, Zigbee™ range: 40 m (line of sight) Antennas NA Device Management mydlink™ app Power CR2450, 500 mAh lithium battery x 1, Battery Life: 2 years (15 triggers per day), DC 3 V Dimensions 51 x 51 x 34.5 mm (2.02 x 2.02 x 1.36 in) Weight Without battery: 37.7 g (1.33 oz), With battery: 44 g (1.55 oz) Certifications FCC, IC, CE, RCM, RoHS, Zigbee™ 3.0