Smoke detector CO detector 2in1 smoke and carbon monoxide detector fire protection CO sensor RH-602

Characteristics: 1. Verified: with warning criteria EN50291. 2.Low battery warning: When the detector battery is low, it will beep every 30 seconds and “Lb” will be displayed on the LCD display. 3. Test/Reset button: The detector can work normally if it alarms when the button is pressed for seconds CO concentration & alarm 50 ppm - alarm within 60-90 minutes 100 ppm - alarm within 10-40 minutes 300 ppm - alarm within 10-40 minutes Specification: Required battery: 3x AA batteries Quiescent current: <35uA (last year) Alarm current: <20mA Voltage: 3V ± 0.3V Alarm decibel: 85 dB at 3 meters Working Environment: 0-45℃ / 20%-95% RH Dimensions: Diameter = 100mm / Height = 38mm Weight: 120g Package contents: 1 * CO Detector