Xiaomi Aqara DJT11LM Manual Del Usuario página 6

Option 2: Remove the protective film, and stick it to the
desired position.
* Keep the surface clean and dry.
Specifications
Model: DJT11LM
Dimensions: 36 × 36 × 9 mm (1.42 × 1.42 × 0.35 in.)
Wireless Protocol: Zigbee
Battery: CR2032
Operating Temperature: -10° – +50° C
Operating Humidity: 0 – 95% RH, no condensation