Short info: Blaupunkt SD-S1 - Smoke Detector - 868.35 MHz - battery powered Group Integrated Systems & Automation Manufacturer Bosch Art. No. SD-S1 Model Bosch SD-S1 EAN/UPC 4054512431209 Product Description: Blaupunkt SD-S1 - Smoke Detector Product Type Smoke Detector Power Source Battery Connectivity Wireless Frequency Band 868.35 MHz Dimensions (Width x Depth x Height) 10.5 cm x 10.5 cm x 5 cm Detailed Specifications General Product Type Smoke Detector Power Source Battery Connectivity Wireless Max. Range (outdoor) 200 m Frequency band 868.35 MHz Features Integrated alarm, 96 dB siren Miscellaneous Battery required 4 x AAA type Marking EN 14604:2005 Dimensions and weight Width 10.5 cm Depth 10.5 cm Height 5 cm Environmental conditions Min. operating temperature -20 °C Max. operating temperature 50 °C Admissible humidity Operating temperature 50 °C Permissible operating humidity 0 - 85% (non-condensing).