4 Pack Photoelectric Smoke Detector Smoke and Fire Alarm Battery Power

Features: 100% brand new and high quality. The principle of detecting is granule in the smoke can reflect infrared light. Test by hand and auto reste. Asic adopted and anti-light. Strong adaptability for circumstance. STM design high stability. Specifications: Operating voltage: DC 12V Alarm current: less than 20mA Sound level: 85dB/m Operating temperature: -10-50 degree Operating humidity:less than 95%RH Operating area: 20 square meters Size:106*35mm Package size:115*110*60mm Color:white Package included: 1 X Photoelectric detector Some Screws Notes: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight deviation for the measurement data.

4 Pack Photoelectric Smoke Detector Smoke and Fire Alarm Battery Power