2in1 Composite Smoke Alarm Co Carbon Monoxide Detector 433mhz High Sensitive Smoke Fire Sound Alarm

Support three alarms, smoke + CO + wireless transmission network alarm;Full-button patented structure, easy to install, no debugging and wiring required;360-degree all-round detection of smoke alarm, no dead angle, ;Built-in high-sensitivity sensing and detection technology, and safeBuilt-in 110 decibel sound and light alarm prompt, effective prompt to evacuate the scene;Using ultra-low power consumption microcontroller + photoelectric principle technology, ultra-long standby life battery for 3 years;Adopt high-performance photoelectric two-way scattering patent technology, stable, and accurate;Battery under-voltage alarm prompt, when the battery voltage is lower than 6.8V, a prompt tone will sound to remind the to replace the battery; and removable top cover design is convenient for on-site cleaning and battery replacementPower supply DC9V\/6F22 (battery not included in delivery)Transmission frequency 433.92, transmission code 1527 protocolLaunch distance Open distance 200MQuiescent current 20uAAlarm current 30mAAlarm loudness Loudness 85dB30 , 120 alarm50 , 60-90 minutes alarm100 , alarm at 10-40 minutes300 , alarm within 3 minutesProduct size: 100x32mmColour:WhiteMaterial:plasticPackage Contents:1 x Smoke AlarmOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.