The Best Home Alarms & Sensors 2025

1. FEIT ELECTRIC - Wi-Fi Smart Motion Sensor - White

Aeotec Motion Sensor

Keep your property safe with the FEIT ELECTRIC MOT/PIR/WIFI/BAT smart motion sensor. Powered by a rechargeable lithium-ion battery, this sensor monitors your indoors and sends a phone alert if motion is detected from up to 26 feet. Connect to other devices and set up automations to turn them on with sensor alerts.

2. FEIT ELECTRIC - Battery Powered Wi-Fi Smart Window Sensor - White

Aeotec Motion Sensor

Protect your home against intruders with the FEIT ELECTRIC MOT/DOOR/WIFI/BAT smart door / window sensor. Operating on two replaceable AAA batteries, this compact sensor mounts on door and window frames and uses the FEIT ELECTRIC app to notify your smart device whenever an opening or sensor tampering is detected. Get peace of mind with 24/7 protection, even when you're far from home.

3. FEIT ELECTRIC - Wi-Fi Smart Water Sensor - White

Aeotec Motion Sensor

Protect your home against sudden leaks and water damage with the FEIT ELECTRIC H2O/WIFI smart water sensor. This compact sensor mounts anywhere inside the home and uses the FEIT ELECTRIC app to notify your smart device whenever water is detected. Save on your water bill and get peace of mind with 24/7 protection, even when you're far from home.

4. First Alert - Basic Smoke Alarm - White

Connects to compatible devices via 3G, 4G, 4G LTE or Bluetooth; Split-Spectrum, ionization and photoelectric sensors; Nest app (download required); mounting hardware included

Safeguard what's important to you with this First Alert basic smoke alarm. It's battery-powered, so no complicated wiring is required, and it has a mute button for fast silencing of false alarms and easy battery testing. The EZ-Access battery door on this First Alert basic smoke alarm allows hassle-free maintenance.

5. First Alert 0827B Ionization Smoke Alarm with 10-Year Sealed Tamper-Proof Battery

This First Alert 0827B 10-Year Sealed Tamper Resistant Ionization Smoke Alarm features a long-life 3V lithium battery that effectively provides a full 10 years of protection, without requiring any battery change. A single test/silence button lets you quickly mute nuisance alarms from cooking smoke or shower steam. This smoke and fire alarm also includes an easy mounting bracket and alarm end-of-life indicator.

Help keep your family safe with this battery-operated smoke alarm; the 10-year lithium-ion battery offers continuous power for the life of the alarm and provides continued monitoring even if there's a power failure Alarm features an ionization sensor for smoke detection, which is effective in recognizing smoke from flaming fires such as paper and grease fires Battery-operated unit provides continuous monitoring even if there's a power failure: plus, it's easy to install Alarm also features loud 85-decibel alarm, easy mounting bracket, a single test/silence button, and an end-of-life signal so you know when to replace the unit To ensure complete protection make sure to place one on each level of your home and in each bedroom 10-year limited warranty; rigorously tested to meet UL standards

6. First Alert - Smoke and Carbon Monoxide Alarm - Works with Ring - White

Connects to compatible devices via 3G, 4G, 4G LTE or Bluetooth; Split-Spectrum, ionization and photoelectric sensors; Nest app (download required); mounting hardware included

First Alert ZCOMBO is a state-of-the-art wireless combination smoke and CO alarm designed to provide early warning of a fire or CO. It features a fully insect screened Photoelectric smoke sensing chamber and an electrochemical carbon monoxide sensor, an 85dB horn, a supervised 3V (2 AA batteries) power supply, utilizes one test button to setup, test and silence. This combination alarm will operate with 3rd party, certified Z-Wave devices enabled with the First Alert protocol and the basic command class required by all Z-Wave devices. First Alert ZCOMBO also includes the Smart Start feature which allows a faster and more intuitive connection of device to hub and on-boarding via use of QR code scan located on device. By the requirements of the Device Class spec, this command class does not have to be mapped to any particular functionality for this device. The alarm supports one association group with up to 1 node and sends its alarms to that group. The alarm supports configuration parameter #1, which has a size of 1, a default value of 0, and when set to 1 causes the device to send double alarm messages. Upon the detection of smoke or CO conditions, the alarm reports smoke and or CO detected to the controller. The device shall send the applicable message when the conditions are cleared. These notifications must be wrapped in the Supervision CC. The following notifications must be supported. The alarm sends a “Heartbeat” signal to hub periodically to confirm operability. It also features tamper resistant locking pins that lock alarm to the mounting bracket and battery drawer to prevent removal of battery or alarm. Designed for wall or ceiling mounting. Includes mounting anchors and screws.

7. First Alert - Dual-Sensor Smoke and Fire Alarm - White

Connects to compatible devices via 3G, 4G, 4G LTE or Bluetooth; Split-Spectrum, ionization and photoelectric sensors; Nest app (download required); mounting hardware included

Stay safe with this First Alert smoke and fire alarm. It uses ionization and photoelectric sensors to detect different types of fires, and its smart sensor can distinguish between real fires and false alarms to keep nuisance alerts to a minimum. This First Alert smoke and fire alarm has a low battery light to show when it's time for maintenance.

8. Plug-In CO Alarm w Digital Display

The First Alert CO615 Dual-Power Carbon Monoxide Plug-in Alarm alerts you to dangerous carbon monoxide levels. This carbon monoxide detector operates on a dual-power system with battery backup for continuous monitoring, even in the event of a power outage. The backlit digital screen tells you, at a glance, what the carbon monoxide and power levels are. The monitor also features a convenient test and silence button and an end-of-life timer that lets you know when it is time to replace the unit.

• Model number CO615 • Dual-power carbon monoxide alarm offers continuous monitoring of carbon monoxide levels • Plugs into any outlet & features battery backup • Backlit digital display shows readings for power & carbon monoxide • Single test/silence button for simple operation • End-of-life timer signals when the detector needs replacing • 7-year limited warranty • Includes 2 AA batteries

9. First Alert - Smoke Alarm with Escape Light - White

Connects to compatible devices via 3G, 4G, 4G LTE or Bluetooth; Split-Spectrum, ionization and photoelectric sensors; Nest app (download required); mounting hardware included

Guide your loved ones safely out of harm's way with this First Alert Escape Light smoke and fire alarm. Onboard illumination shows the path out if the worst happens, and an ionization sensor picks up the earliest signs of flames. The easy-access door on this First Alert Escape Light smoke and fire alarm makes maintenance easy.

10. First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display

Monitor your house for dangerous levels of methane, propane, and carbon monoxide with the First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display. This explosive gas and CO alarm detects the presence of combustible gases propane and methane and alerts you with a loud 85-decibel alarm. It also comes equipped with an electrochemical CO sensor that accurately detects carbon monoxide leaks from faulty fuel-burning appliances, blocked chimneys, and a variety of other sources. Designed for easy setup, this explosive gas and CO detector plugs into any AC outlet with no additional mounting hardware needed. The alarm can be configured to work with almost any standard household remote control (not included), so you can remotely silence nuisance alarms with the push of a button. The backlit digital display shows current and peak levels, allowing you to easily review the alarm's readings. For added safety, a backup battery helps keep the alarm functioning even in the event of a power outage. And thanks to a convenient test/silence button, you can easily check whether your alarm is functioning properly and mute false alarms.

Versatile CO alarm senses high levels of propane, natural/methane gas, and carbon monoxide Crisp backlit digital display allows you to view current and peak levels Can be remotely muted using almost any household remote control Plugs into any AC outlet for easy setup; backup battery powers unit in case of power outage Loud 85-decibel alarm can be heard easily