Combination Smoke and Carbon Monoxide Detector Alarm, Beeps Warning Smoke Co Alarm Clock for Travel Home Bedroom Living Room Basement Attics Cars, Battery Operated, Comply with UL 217/UL 2034, 1 Pack

✅Test this alarm First, HOW TO TEST IT(3 steps): 1. Install the batteries in clean air, then press the test button for five seconds to test the unit electronics, beeps will sound if it's normal; 2. Leave it in clean air for one minute; 3. put it into a sealed bag, spray some smoke or CO gas into the bag and seal it. Waiting for about one minute, the Alarm will go off if it's normal. NOTE: DO NOT test it by directly burning something under this alarm, which is an invalid test. ✅Keep your family safe with this battery operated smoke and carbon monoxide alarm; battery powered alarms provide continuous monitoring of CO and smoke levels, even if there's a power failure. Features an electrochemical sensing technology and a photoelectric sensor that detects the larger particles of a smoldering fire. Please thoroughly read PRODUCT DESCRIPTION and the user manual before using. ✅Indicator lights on the face of the unit display the presence of smoke and carbon monoxide, while an 85dB beeps siren provides a clear, loud warning upon detection. If the unit sounds all the time or it is of malfunction, please reinstall the battery to repeat the operation OR Please put it into clear air until it's normal. If CO ALARM BEEPS：Only when detected clear air can it silence the CO alarm(if the room still exists high level of CO, the alarm will keep alarming until the air was cleaned) ✅ 2 * AA Battery-operated unit installs quickly and easily without an electrician, Can connect to other compatible detectors, To ensure all alarms will sound when threat is detected(Battery not included) ✅Dimensions: 4 * 4 * 1.5 inch. Simple to use, NOTE: When installation please follow the circular arrow direction that Marked on the product for rotating the Mounting base/Bracket: PRESS DOWN AND TWIST; 【Do not install it in or near kitchens/garages/furnace room/bathrooms】. A single button tests the unit or silences the alarm. Low battery signal mute, quiets low battery signal for up to 8 hours. if there is any problems, please feel free to contact us, we are always here to help you. Combination Smoke and Carbon Monoxide Detector Alarm Can Detect the threat of these Two Gases.
Photoelectric Sensor Detects Smoke, Smoke Detector While Minimizing false alarms.
Co Detector alarm Use High accurate Electrochemical Sensor, alerts you to Danger. insurance Safety of your life.
Suitable for all the Place Possible to Produce Cambo Smoke and , Such as your Home Kitchen, Bedroom, Bathroom, Hotel， Cars. Also Useful When you are Enjoying the Barbecue, Using Charcoal Warm yourself, or Putting it in your Parking Garage, etc.

Easy to install
Turn the alarm body counterclockwise and take off the bracket.
Hold the bracket in the installation position as specified in the Recommended Locations,mark installation holes of the bracket with pencil.
Drill the two marked installation holes.Tap the two plastic gromments into holes with hammer.
Mount the bracket to the ceiling by inserting and tightening the supplied screws into plastic grommets.
Fix the alarm on the bracket and turn the alarm body clockwise , until fully inserted on the bracket.

Working Parameter
Sensitivity & Time for CO Alarm
50ppm, alarming within 90 minutes
100ppm, alarming within 40 minutes
300ppm, alarming within 3 minutes
Sensitivity for Smoke Alarm: 0.1~1.0dB/m
Standby Current: <80uA
Alarm Current: <80mA
Operation Ambient Condition: 5~400C, 20~90%R.H

Appearance and Button
Green LED: The green LED flashes every 40 seconds to indicate the unit is operation properly
Red LED: When a dangerous level of carbon monoxide or smoke are detected the red LED will flashes and the alarm pattern will sound: The alarm sound pattern is four short alarm beeps for co alarm and continuous beeps for the smoke alarm.
3. One ‘chirp’ every 40 seconds is an indication that the battery is low