? Model: JY-GZ-03AQ - Wireless Protocol: Zigbee - Material: PC+ABS - Battery: DC 3V(CR17450) - Dimensions: F104.6X42mm - Wireless transmit power: -95dBm - Operating Temperature: 0°C ~ 40°C - Operating Humidity: 0 ~ 95% RH, no condensation - What is in the Box: Detector × 1, Mounting Plate × 1, Battery × 1, Adhesive Sticker × 1, Self-Tapping Screw × 2, Expansion Tube × 2