ALN Wireless LED Digital Display Carbon Monoxide Gas Densor CO

AN Wireless LED Digital Display Carbon Monoxide Gas Densor CO Features:1. Electrochemical sensing technology, high sensitivity and high detection.2 .Digital display of the concentration of toxic gases, acoustical-optic alarm alarm.3 .Using chip control technology, saving and durable.4 .Small size, exquisite industrial design.Specification:Working voltage: 1.5V x 3=4.5V (3 AAA batteries not included )Static current: 20uAWorking humidity: relative humidity 15%-90%Digital tube display without voice sound and light alarm concentration value: 100PPM-199PPM (+ 50PPM)Digital tube display and continuous voice sound and light alarm concentration values: 200PPM and above (+ 50PPM)Wireless transmission frequency: 315MHZ/433MHzWireless transmission distance: 300 meters (open)Package included:1 x CO Detector1 x English User ManualA package of screwsDetails ANG-1610885