The Best Home Alarms & Sensors 2026

1. 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.

2. AcuRite - Wireless Thermometer with Digital Display - White

With the AcuRite wireless digital thermometer, you’ll always know the current indoor and outdoor temperature and humidity from the comfort of your home! The wireless LCD display features a built-in thermometer to measure indoor temperature and hygrometer to measure indoor humidity. The included outdoor wireless sensor acts like an outdoor thermometer and hygrometer to record temperature/humidity and wirelessly transmit data to the indoor display. Adding a tech-forward flair to any kitchen, office, or bedroom, this completely wireless thermometer stands upright with its fold-out stand. The display requires three (3) AAA batteries (not included), and the weather-resistant outdoor sensor requires two (2) AA batteries (not included). This digital indoor/outdoor thermometer can be an ideal addition to any bathroom, bedroom, living room, or weather center. This thermometer comes with a one-year limited warranty.

3. AcuRite Digital Weather Forecaster with Temperature and Humidity with Date and Time (00506W)

Plan Your Day with Confidence with reliable information about current and future outdoor conditions, available at a glance with this color weather station. This AcuRite digital weather forecaster (00506W) gives you a glimpse of possible future conditions using patented Self-Calibrating Technology to provide you with a personal weather forecast for the next 12 hours to 24 hours and displays the current readings wirelessly receives from the outdoor temperature monitor. The backlit LCD screen displays indoor temperature and humidity and outdoor temperature in large, easy-to-read numbers. It includes the current time, date, barometric pressure, and trend arrows. High and low records for readings give you a sense of how conditions have been changing. Always stay informed of outdoor conditions from your home's comfort, with the simple mount outdoor sensor.

Easy-to-Read Digital Screen Displays the Current Conditions at a Glance with Trend Arrows AcuRite Patented Self-Calibrating Technology Creates Your 12-24 Hour Personal Weather Forecast with Icons Comes with indoor display and outside sensor Accurate and Reliable Indoor and Outdoor Temperature Tabletop or Wall-mountable - Built-in Hang Hole and Kickstand Options Accurate Indoor Humidity Gauge Model: 00506W

4. AcuRite Pro 5-in-1 Weather Station with HD Display and Lightning Detector

5-in-1 Weather Sensor tracks wind speed, wind direction, offers a rain gauge, plus measures temperature and humidity Lightning Detector Sensor tracks lightning strikes up to 25 miles away, and provides a visual and audible warning HD Display features built-in sensors that measure barometric pressure, and indoor temperature and humidity Offers stunning graphics and the ability to toggle between outdoor weather, indoor comfort, plus daily and monthly records dashboards Offers a lightning strike counter that displays running total of lightning strikes detected, estimated distance, plus weekly and monthly totals Measures 0.6" L x 7.6" W x 5.5" H Requires eight AA batteries (not included) 3' cord length AC adaptor 1-year limited manufacturer's warranty Imported Model 01024M

AcuRite Pro 5-in-1 Weather Station with HD Display and Lightning Detector

5. Acurite 00589 Color Display for 3-in-1 Weather Sensor

Monitor environmental conditions with the AcuRite Weather Station Display, compatible with the AcuRite 3-in-1 Weather Sensor (sold separately). Track conditions from multiple rooms by adding the display to any AcuRite 3-in-1 weather station. The vibrantly colorful, illuminated LCD screen includes the weather forecast, indoor and outdoor temperature and humidity, wind speed, barometric pressure, 12-hour history chart, time and date.

Compatibility Observe conditions from multiple rooms by adding the display to any AcuRite Pro 3-in-1 Weather Station (sold separately) Compatible with any AcuRite 3-in-1 Weather Sensor (sold separately) Replace a broken display Identical to the display included with models: 00386 / 00589 Includes: Digital weather station display, tabletop stand, power adapter, instruction manual Color Display for 3-in-1 Sensor Illuminated color display with auto-dimming brightness 12 to 24 hour weather forecast Patented Self-Calibrating Forecasting pulls data from a sensor in your backyard to give you the most accurate forecast for your exact location Wind speed: current, low, peak, and average (MPH or KPH) Indoor and outdoor temperature (degrees Fahrenheit and Celsius) with trend arrow Indoor and outdoor humidity (%RH) with trend arrow Heat index, wind chill, and dew point 12-hour weather history chart: Toggle between temperature, humidity and wind speed data Daily, monthly and all-time high and low records Barometric pressure with trend arrow and manual calibration option Time and date (month/day) Tabletop or wall-mountable design Indicator for wireless sensor signal strength Display for 3-in-1 Weather Sensor Specifications Indoor Temperature Range 32 to 122 degrees Fahrenheit; 0 to 50 degrees Celsius Temperature Accuracy +/- 2 degrees Fahrenheit; Learn more Indoor Humidity Range 1% to 99% Relative Humidity Humidity Accuracy +/- 5% from 0% to 10% Relative Humidity +/- 4% from 10% to 20% Relative Humidity +/- 3% from 20% to 80% Relative Humidity +/- 4% from 80% to 90% Relative Humidity +/- 5% from 90% to 100% Relative Humidity Power 5V, 100mA power adapter (included; recommended for optimal display color), 6 AA alkaline batteries (optional; not included) Dimensions 7.7-inches Height x 7.1-inches Width x 1.3-inches Depth

6. AcuRite Digital Weather Forecaster with Indoor/Outdoor Temperature, Humidity, Date, and Time (01201M)

This AcuRite weather forecaster (01201M) uses patented Self-Calibrating Technology to provide you with a personal weather forecast for the next 12 to 24 hours, as well as displays current readings that it wirelessly receives from the outdoor temperature and humidity monitor. The LCD screen displays indoor and outdoor temperature and humidity in easy to read large numbers, and includes a clock that automatically updates for Daylight Saving Time. The backlit display can be set to auto dim, and also shows dew point, the current date, and barometric pressure, as well as using trend arrows and high and low records for readings to give you a sense of how conditions have been changing.

AcuRite Digital Vertical Weather Forecaster with Indoor/Outdoor Temperature, Humidity, and Date and Time (01201M) Real-Time Weather Conditions: Receive readings for indoor and outdoor temperature and humidity with daily high and lows Forecasting Technology: Provides a hyperlocal, personalized weather forecast 12 hours from your current conditions Stylish, Dark, Easy-to-Read LCD Display: This auto-dimming display shows the current date, time, and barometric pressure Atomic Self-Setting Clock and Calendar: Never have to worry about the correct date and time with spilt-second precision Multiple Placement Options: Wireless home weather station with a built-in kickstand for table placement and keyholes on the back to hang on the wall to meet your needs

7. AcuRite - Atlas Weather Station - White/Black

This AcuRite professional home weather station features a 7-in-1 wireless outdoor sensor and a high-definition white indoor display. Optimize your home or office while keeping tabs on your hyperlocal weather conditions. This weather station comes with a one-year limited warranty.

8. GE - CYNC Smart Wire-Free Motion Sensor - White

Motion sensor; adjustable sensitivity; up to 30' detection range; 100° field of view; battery-powered design; up to 2 years battery life; mobile alerts; works with Eufy Security HomeBase; easy installation

The Wire-Free Smart Motion Sensor adds programmable motion to Cync and C by GE Smart Bulbs, Smart Switches and Smart Plugs. The sensor automatically turns lights and devices on when motion is detected in the room and turns them off when the room is unoccupied. The smart Bluetooth sensor connects wirelessly to Cync and C by GE Smart Bulbs, Smart Plugs and Smart Switches to provide whole room motion control. The motion settings are adjustable so lights can come on slowly at nighttime or be set to deactivate during certain times. Set lights to turn on based on natural light and motion in the room. Pair with a Cync or C by GE Smart Plug and automatically turn off devices like curling irons after you left the room. With a replaceable battery rated to last over two years and multiple mounting and positioning options, it's easy to get expansive motion coverage anywhere in your home.

9. AcuRite - Weather Station - White

The AcuRite Weather Station Forecaster includes a remote outdoor sensor that provides outdoor weather conditions and detects potential thunderstorm activity. Boost your home or office and gain insight into your hyperlocal weather conditions and indoor comfort levels.

10. AcuRite - Iris (5-in-1) Weather Station - White/Black

This AcuRite Iris (5-in-1) home weather station comes with a wireless mini (5-inch) display to provide you with a wealth of hyperlocal weather knowledge! Boost your home, workspace, or campsite and receive essential weather information, the indoor temperature, and the time and date.