Specifications: Frequency: 433.92 MHz (± 100 kHz) Number of channels: 2 Range: 35 m (indoor) 200 m (outdoor) Coding: 72-bit O-Code, (Flor, Inti compatible) Power supply: 3 Vdc, CR2032 Protection rating: IP40 Dimensions: 45 × 56 × 11 mm. Weight: 18 g. Operating temperature: -20 °C ÷ +55 °C. Wall mount: yes. Included Battery: yes. Included