Tools & Home Improvement From GLBSUNION on Amazon

Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85dB siren provides a clear, loud warning upon detection

Simple to Use: Test/Silence button enables you to test the alarm weekly, and to easily silence the alarm when false alarms occur; malfunction and low battery warnings allow you to easily know the working status of the alarm; in case of an emergency, an alarm tone of over 85 dB will sound throughout your entire home, instantly alerting the entire household, even those in sleep

Quick & Easy Installation with Guaranteed Quality: Product Dimensions: 4 * 4 * 1.5 inch, Requires no rewiring; easy to mount on any wall or ceiling with the included mounting bracket, screws and anchor plugs; certified to meet the UL safety standards for your peace of mind and absolute confidence in our product. you can get: 1. two detector alarms with Mounting bracket, 2. one manual, 3. four screws.

✅SAFETY AND VISIBLE— Protect Our Family from CO, With 3 digits LCD Displayer is Optional, 'Err' indicates the unit malfunctioning. 'Lb' indicates it low battery & need to replace. '999ppm' indicates CO level over 999ppm. ‘actual concentration’ when less than 999ppm. 【✅NOTE: IN NORMAL CONDITION, LCD IS NOT LIT FOR SAVING ENERGY (ENTER THE STANDBY STATE, IT JUST LIKES OUR PHONES). LCD WILL BE LIT TO DISPLAY THE ACTUAL CONCENTRATION AS CO LEVEL EXCEEDS 30PPM OR AS THE TEST/RESET BUTTON PRESSED】

✅ENERGY-SAVING — Operated by 3 x 1.5V AA Batteries (not included), The alarm sound pattern is 4 beeps every 5seconds for the first 4 minutes. In 4 minutes, it will change to 4 beeps ever minute to save the battery

✅ALARM STANDARD — 50ppm, alert within 60 to 90 minutes; 100ppm, alert within 10 to 40 minutes; 300ppm, alert within 3 minutes. Note: When you test the detector, please do not use gas blow the hole directly

✅SAFETY AND VISIBLE— Protect Our Family from CO, With 3 digits LCD Displayer is Optional, 'Err' indicates the unit malfunctioning. 'Lb' indicates it low battery & need to replace. '999ppm' indicates CO level over 999ppm. ‘actual concentration’ when less than 999ppm. 【✅NOTE: IN NORMAL CONDITION, LCD IS NOT LIT FOR SAVING ENERGY (ENTER THE STANDBY STATE, IT JUST LIKES OUR PHONES). LCD WILL BE LIT TO DISPLAY THE ACTUAL CONCENTRATION AS CO LEVEL EXCEEDS 30PPM OR AS THE TEST/RESET BUTTON PRESSED】

✅ENERGY-SAVING — Operated by 3 x 1.5V AA Batteries (not included), The alarm sound pattern is 4 beeps every 5seconds for the first 4 minutes. In 4 minutes, it will change to 4 beeps ever minute to save the battery

✅ALARM STANDARD — 50ppm, alert within 60 to 90 minutes; 100ppm, alert within 10 to 40 minutes; 300ppm, alert within 3 minutes. Note: When you test the detector, please do not use gas blow the hole directly

✅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

✅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 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.

►【Alarm Warning】When a dangerous level of carbon monoxide is detected the red LED will flashes and a loud alarm pattern will sound--Loud 85 decibel alarm with LED Flash.

►【Easy Installation And Widely Used】Simple to use, Dimensions: 4 * 4 * 1.5 inch. Co detector Coming with mounting accessories, just drill holes in appropriate positions, and done; Used for bedroom, kitchen, living room and any other area with a risk of fire danger can be installed a smoke detector and CO alarm.

►【Energy Saving】3 * 1.5V AA battery powered CO detector (battery not included), Low Current consumption, Ultra-long Standy time. 12 months worry-free product guarantee, please contact seller first once you have any questions.

🎉WEATHERPROOF AND PORTABLE: The copper Wire Parts of The String Lights are Fully Sealed, Thus Making it Submersible, With the Small Ip67 Waterproof Battery Box(2*2.7inches), It Can Meet Normal Use Outside But Not Enough to Put Under Water Directly, in One Word, You Can Easily Carry and Place the Led strand light Anywhere Indoor or Outdoor Usage of Lighting Decorations

🎉Energy Saving: This Line Light is Super Energy Saving, Fresh AA Battery(3*AA Battery Operated, Batteries Not Included) Can Last for Up to 5 Days With Continuously Steady on Lighting, Let Along On Flashing Mode; With Timer Set for 6 Hours On Each Day, They Will Last for More Than Half a Month Without Any Problems

🎉WHAT YOU CAN GET: 2 Pack Led String Light in the Package. Every Led Garland Light is Individually Tested, So You Can Be Sure It Will Arrive in Good Working Condition. 12 Months Warranty & 30 Days Money Back Guarantee, CE certification