Sell 2 in 1 LCD Display CO and Smoke Combo Detector Carbon Monoxide& Cigarette Dual Sensor Battery Operated CO Alarm with LE best price

Model: Carbon Monoxide & Smoke Combo Detector Material: ABS Operating voltage: 4.5 (V) Detection angle: 360 Detection distance: 20-30m Transmit frequency: 50 (MHZ) Scope of application: Indoor Installation method: ceiling type Communication mode: wireless Static current: < 80uA Alarm Current: < 30mA Sensor: Electrochemical carbon monoxide sensor & Infrared photoelectric sensor Temperature: 0 ~ 50 ° C Humidity: 10-95% CO Sensor Detect Concentration 000 ~ 999PPM Smoke Sensor Sensitive: 0.1% db/m ~ 9.9% db/m Alarm Indication: LCD display, light/sound prompt Alarm Loudness: over 80db Power Supply: 3 * 1.5 V AA batteries (not included) Item Size: 10.4 * 10.4 * 3.9 cm Weight: 181g Package: Carbon Monoxide & Smoke Combo Detector * 1 (No Battery) Features: 1. Detector, Build in High Accurate Electronic Sensor & Infrared Photoelectric Sensor. 2. LCD display co concentration: 000 ~ 999ppm, and the blue backlight will be activated when alarming. If CO gas concentrations over 100PPM or smoke concentration over 0.1% db/m, the buffer will make sound "di" and the LED light will flash to alert you. 3. Alarm Pause (Hush Mode): You can press the test button to stop the alarming sound when non-emergency. 4. Test/Reset button to test the unit electronics, check alarm concentration or reset the unit. 5. Low Battery Warning: The red LED light and LCD display will return you when power shortage. 6. Powered by 3 * 1.5 V AA batteries (not included), ultra-long standby time and low current consumption. 7. Suitable for all the places, such as your kitchen, bedroom, bathroom, garage, etc.