Blister alkaline power

Connectivity Technology: Wireless - IEEE 802.11b, IEEE 802.11g, IEEE 802.11n Features: Push notification, low battery audio signal, photoelectric sensor Frequency Band: 2.4 Ghz Integrated Components: Siren Max Range Open Space: 30 m Power Source: Battery Product Type: Smoke / temperature sensor Siren Sound Level: 85 dB Temperature Range: 54 - 70 °C Battery Included: Yes Battery Lifetime: 1 year Form Factor: AA type Required Qty: 2 Technology: Alkaline Voltage Provided: 1.5 V Color: White Compliant Standards: IP20, EN 14604, RoHS 2 (2011/65/EU), Directive 2014/53/EU, RoHS III 2015/863/EU, EN 14604:2005+AC:2008 Included Accessories: Mounting kit Depth: 12 cm Height: 3.5 cm Weight: 220 g Width: 12 cm Max Operating Temperature: 35 °C Min Operating Temperature: 0 °C