Best Tamper resistant Alarms

First Alert BRK SC9120B-6 Hardwired Smoke and Carbon Monoxide Detector CO with Battery Backup 6-Pack White

Keep your family safe with this 6-pack of hardwired smoke and carbon monoxide alarms.
The battery backup means constant monitoring, even if there's a....
Features an electrochemical Carbon Monoxide sensing technology as well as an ionization sensor that detects the fine particles of a fast-burning fire.
Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85-decibel siren provides a clear, loud warning....
Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected.
Simple to use, with a single test/silence button, and side-load battery compartment.
tamper-resistant locking brackets and universal mounting brackets....

Dual ionization - dual ionization sensing chamber. Generally more Effective at detecting small particles produced by Flaming fires. Sources may....
Silence feature - silences nuisance alarms.
Tamper resistant locking pin - locks alarm Cover to prevent removal of battery. Perfect for apartment, dormitory or hotel applications.
It can ship within the US except New York.

Advanced technology – smoke and carbon monoxide detectors combine ionization & electrochemical sensors to detect invisible fire particles & CO gas.
Hardwired alarms with tamper proof backup battery – to help protect your home and family during power outages, eliminates the need for battery replacement.
Hush feature silences nuisance or “false” alarms – with just the push of a button on the alarm itself.
85-db alarm & voice warnings – “Fire!” or “Warning: Carbon Monoxide” so you know why the smoke & carbon monoxide detector is sounding.
Interconnect alarms – allows you to connect up to 24 Kidde devices of this type, giving you trusted detection throughout your home.

6 pack of hardwired smoke alarms, includes battery backup for power outages.
Tamper resistant locking pins, single button silence/test and loud 85Db alarm.
120-Volt AC power with 9-volt battery backup (included) to keep alarm functioning during power outage.
Open mounting design for easy installation with side load battery compartment for quick replacement and interconnect able up to 18 units (12 smoke, 6....

Keep your family safe with this hardwired smoke alarm the battery backup means constant monitoring, even if there's a power failure.
Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast flaming fires and alerts you with an 85 decibel alarm.
To ensure complete protection make sure to place one on each level of your home and in each bedroom.
Can connect to other compatible BRK or first alert smoke detectors, to ensure all alarms will sound when smoke is detected.
Simple to use, with a single test/silence button, and side load battery compartment tamper resistant locking brackets and universal mounting brackets make installation easy.
Rigorously tested to meet UL standards120 volt AC power with 9V battery backup to keep alarm functioning during power outage.
First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018).
Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.

Help keep your family safe with this battery-operated smoke and carbon monoxide combination alarm. This easy-to-install smoke and carbon monoxide combination alarm connects with other Z-Wave compatible alarms and a Z-Wave hub (sold separately).
Integrated wireless alarm system is Iris compatible to send you mobile alerts and emails, so you’re aware of dangers after the alarm is activated, whether you’re home or away.
Alarm features photoelectric smoke-sensing technology optimized to detect larger smoke particles produced by smoldering fires, and an electrochemical carbon monoxide sensor.
Certified for use with Nexia Home Intelligence, Ring Home Security System, and other third party Z-Wave systems.
Includes test/silence button, side-access battery door, plus a tamper-resistant battery drawer and pins that lock the alarm to the mounting bracket.
Certified for use with Nexia Home Intelligence or other Z-Wave systems.
Combination Smoke and Carbon Monoxide protection that alerts you whether you are home or away.
Photoelectric smoke sensor helps reduce false alarms such as from cooking or shower steam.

Complies with all current 10-year legislation in U.S. states/cities where required.
Slim shape is half as thick as a standard smoke alarm.
easy twist-lock mounting system and tamper-resistant design.
Equipped with photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires.
helps minimize the number of false alarms.
Patented smoke entry system allows for a direct path to the sensor.
Features loud 85-decibel alarm and single test/silence button.

Keep your family safe with this hardwired smoke and carbon monoxide alarm.
The battery backup means constant monitoring, even if there's a power failure.
Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection..
Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85 decibel siren provides a clear, loud warning upon detection.
Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected.
Simple to use, with a single test/silence button, and side load battery compartment.
Tamper resistant locking brackets and universal mounting brackets make installation easy.
Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.
First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018).

85db alarm & voice warnings – “Fire!” or “Warning: Carbon Monoxide” so you know why the smoke & carbon monoxide detector is sounding.
Hardwired alarm with tamper proof backup battery – to help protect your home and family during power outages, eliminates the need for battery replacement.
Interconnect alarms – allows you to connect up to 24 Kidde devices of this type, giving you trusted detection throughout your home.
Advanced technology – smoke and carbon monoxide detector combines ionization & electrochemical sensors to detect invisible fire particles & CO gas.
Hush feature silences nuisance or “false” alarms – with just the push of a button on the alarm itself.