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Replacement Sensors

A security sensor is a device that monitors an area for the presence of threats or intruders and triggers an alarm or other response when it detects such a presence. They are often used in conjunction with a video surveillance system or other security equipment. Browse the top-ranked list of replacement sensors below along with associated reviews and opinions. 

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  1. Google - Nest Temperature Sensor (2nd gen) 1-pack - Porcelain

    SKU: JJ8T5CCSFX

    Best temperature sensor. Gives accurate temperature reading. Very sleek too....Great product...Great product - easy to install and great performance

    Product Description

    A battery-powered porcelain temperature sensor that wirelessly manages room comfort via app and Bluetooth connectivity.
    See all Water & Temperature Sensors
    Your price for this item is $39.99
  2. Google - Nest Temperature Sensor (2nd gen) 3-pack - Porcelain

    SKU: JJ8T5CCSV2

    Love these. Really makes my temperature in my house more reliable.

    Product Description

    A porcelain, battery-powered sensor 3-pack that wirelessly monitors and manages room temperature via app.
    See all Water & Temperature Sensors
    Your price for this item is $99.99
  3. Arlo - All-in-One Sensor with 8 sensing functions for Home Security System, 1 Pack - White

    SKU: JJ8QV84XTS

    Didn't need it but love it been upgrading my home and its been great...Best in the market.

    Product Description

    An all-in-one white sensor offering eight detection functions and easy app control for enhanced home security.
    See all Water & Temperature Sensors
    Your price for this item is $29.99
  4. Wireless Cooking Sensor for Thermador Masterpiece Series Cooktops - Black

    SKU: J3P322PW6Y

    Product Description

    A wireless black sensor that ensures precise temperature control when paired with compatible induction cooktops.
    See all Range & Oven Accessories
    Your price for this item is $209.00
  5. HQRP - Refrigerator Thermistor Temperature Sensor Replacement for GE WR55X10025 20 in

    SKU: J3ZSLCHY23

    Product Description

    A plastic temperature sensor restores accurate cooling and defrost operation in compatible GE refrigerators.
    See all Refrigerator Parts & Accessories
    Your price for this item is $8.95
  6. HQRP - Engine Knock Sensor Replacement KS-24 22060-30P00 for Nissan Maxima Altima Pathfinder Frontier Xterra

    SKU: J3ZSLCTWK9

    Product Description

    A replacement knock sensor that restores accurate engine timing and performance for select Nissan and Infiniti vehicles.
    See all Auto Diagnostic Tools
    Your price for this item is $23.15
  7. HQRP - Float Suspension Switch Sensor Replacement for Hoshizaki Ice Machines Replaces 4A3624-01 433535-01

    SKU: J3ZSLCVS33

    Product Description

    A plastic float suspension switch sensor replacement that restores water level sensing in compatible commercial ice machines.
    See all Refrigerator Parts & Accessories
    Your price for this item is $17.95
  8. HQRP - Engine Knock Sensor Replacement for Lexus RX300 2000-2003 - Replaces KS159 KS-159 89615-12090

    SKU: J3ZSLCTWZS

    Product Description

    A replacement knock sensor that helps optimize engine performance and fuel efficiency in select Lexus RX300 models.
    See all Auto Diagnostic Tools
    Your price for this item is $15.40
  9. HQRP - Camshaft Position Sensor for Kia Sportage 2006-2010, Optima 2006, Hyundai Santa Fe 2005-2006, Tiburon 2006-2008

    SKU: J3ZSLCTWZX

    Product Description

    A direct replacement sensor that restores accurate camshaft position signals for stable engine performance and diagnostics.
    See all Auto Diagnostic Tools
    Your price for this item is $21.48
  10. Green Klean - Replacement Micro Filter, Fits Windsor Sensor uprights, 5301ER - Gray

    SKU: J3Y7SS9H3K

    Product Description

    A gray micro filter compatible with Windsor Sensor and Triple S ProSense upright vacuums.
    See all Vacuum Filters
    Your price for this item is $12.89

FAQ

Replacement sensors are designed for a variety of devices, including smart home systems, security cameras, thermostats, and appliances. Always check your device’s specifications to ensure compatibility before purchasing a replacement sensor.

Installation instructions vary by device and sensor model. Most replacement sensors come with a user manual or installation guide. Typically, installation involves disconnecting the old sensor, connecting the new one, and following any calibration steps outlined in the manual.

Some devices support third-party replacement sensors, while others require manufacturer-approved components. Refer to your device’s user manual or manufacturer’s website to determine if third-party sensors are supported.

Most replacement sensors require minimal maintenance. It’s recommended to keep them clean, free of dust, and periodically check for firmware updates if applicable. Refer to your sensor’s manual for specific maintenance guidelines.

Some replacement sensors offer enhanced features such as wireless connectivity, app integration, or advanced detection capabilities. Consider your device’s requirements and desired features when selecting a replacement sensor.