Description: Working voltage: 9V carbon battery or alkaline battery Static current: 10uA Alarm current: 35mA Alarm sound: 80dB Transmission frequency: 433MHz Launch distance: 100m (open distance) Working temperature: -10 ~50 Working humidity: 10% -90% RH Features 1. [Smoke Alarm] The mini smoke detector is an excellent safety guarantee for your home. 2. [High sensitivity] 360 all-round high sensitivity monitoring. 3. [Low power consumption] This smoke detector is designed with low voltage and fault prompt functions. When it is low power consumption, it will issue a warning and has a self check function. 4. [Wide range of uses] It is suitable for fire prevention in many places such as homes, warehouses, hotels, factories and so on. 5. [Quick response and loud voice] When smoke or fire hazards are detected, the red indicator light of the detector immediately flashes and emits an alarm sound exceeding 90 decibels 6. Optimal selection of environmentally friendly ABS fireproof materials.Has excellent corrosion resistance and heat resistance Package Included: 1 set * (1 detector, 1 manual, 1 tool kit)