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Weatherproof Temperature Sensor

Weatherproof Temperature Sensor


    • A smart thermometer sensor with 3.28 feet (1 meter) long external strip and 0.98 inches (25 millimeters) long detection probe, used for monitoring the real-time temperature level in your indoor or outdoor location


    • Temperature displayed on the YoLink app
    • Extremely accurate temperature and humidity figures (+/- .1 degrees Celsius
    • Self-calibration available via the YoLink app
    • Portable; may be placed anywhere in your home or wall-mounted
    • High-temperature/low-temperature alerts
    • Historical temperature graphs displayed in hourly and daily figures
    • Wireless operation; no 120V outlet or wiring required
    • Battery-powered (two standard alkaline AAA batteries, included)
    • Up to 2 years of battery life, compared to 1 year for other brands
    • Alexa and IFTTT integration
    • YoLink’s industry-leading long-range communication and low-power operation


    • Exceptional value; accurate temperature sensor in one smart device at a great price
    • Works with the convenient and user-friendly YoLink app
    • Know the current temperature level at the sensor’s location. Check remotely using the YoLink app, anytime and from anywhere
    • Create customized alerts, to be informed of high- or low-temperature levels via emails or app push notifications
    • Create custom automation using the YoLink app, to trigger responses from other YoLink devices, such as the Siren Alarm
    • Use the IFTTT service (www.ifttt.com) to create custom automation with YoLink and third-party devices, tailored to your particular needs and your IoT devices (IFTTT is a paid service for more than 3 custom automation)
    • Compact design allows for placing the sensor where others may not fit
    • Easy to install and portable; move to other locations as needed
    • Lower cost of ownership than other technologies; low-power operation means batteries may last over 2 years, compared to 1 or less from other brands
    • Carefree maintenance, with more years between battery replacement
    • Low-battery alerts give you advanced warning that it is almost time to replace the batteries
    • Uses standard alkaline batteries (2 AAA batteries); no Lithium or special batteries required
    • Extremely easy and fast installation using the YoLink app with Scan & Play


    • Use the YoLink smartphone app to remotely monitor the temperature of your home, rental property, condo, summer home, or business (internet connection and YoLink Hub required)
    • YoLink’s industry-leading long-range communication allows for placing the sensor in your out-buildings, separate garage buildings, barns, greenhouse, etc.
    • Place one in each room your wish to keep an eye on the temperature 
    • Use the sensor and app automation features to automatically turn on the exhaust fan in your bathroom during hot showers and baths
    • Monitor your cigar humidor, wine cellar, or any other temperature-sensitive item or area
    • Place inside a refrigerator or freezer, to prevent the loss of expensive refrigerated and frozen foods due to equipment failure or power loss
    • Monitor the temperature of rooms or buildings without temperature control, for example, receive a low-temp alert before water pipes freeze
    • There are numerous pet care applications:
      • For reptile tanks (turn on a heat lamp if the temperature gets too low, or turn off the lamp if it gets too hot)
      • Place one an outdoor dog house, to know if it’s too cold for them
      • Place in a barn, to ensure your horses or livestock are comfortable and safe
      • Receive alerts if sensor levels fall outside of your customized ranges



    • YoLink Hub with an internet connection (wired Ethernet or 2.4GHz Wi-Fi). Refer to the Hub user guide for additional information
    • Smartphone or tablet running iOS 9 or higher, Android 4.4 or higher
    • Tools Required: None (Unless wall-mounting, optional)
    • Installation Difficulty Level: Super Easy


    • Semtech® LoRa® RF Module YL09 microcontroller with 32-Bit RISC processor
    • Color: White
    • Alert Temperature Range: -40°F – 221°F, ±0.9°F@77°F (-40°C – 105°C, ±0.5°C@25°C)
    • IP Rating: IP67
    • Data Displayed: Temperature, low-battery indicator
    • Multi-color status LED (rear)
    • SET button (rear)
    • Power: 2 Lithium Non-Rechargeable AAA batteries (3V DC)
    • Current Draw: ≤ 135mA (operating), ≤ 5uA (standby)
    • Dimensions:
      • Sensor Body (L x W x D): 2.44 x 2.44 x 0.87 inches (62 x 62 x 22 mm)
      • Cable Whip (L) : 3.28 feet (1 m)
      • Detection Probe (Dia x D): Φ0.2 x 0.98 inches (Φ5 x 25 mm)
    • Operating Temperature Range:
      • Sensor Body: 14°F – 122°F (-10°C – 50°C) [Can be extended to: -22°F – 158°F (-30°C – 70°C) with Lithium Non-Rechargeable Battery]
      • Cable Whip: -40°F – 221°F (-40°C – 105°C)
      • Detection Probe: -40°F – 221°F (-40°C – 105°C)
    • Operating Humidity Range:
      • Sensor Body: ≤95% (non-condensing)
      • Cable Whip: ≤100% (non-condensing)
      • Detection Probe: ≤100% (non-condensing)


    • (1) YoLink Weatherproof Temperature Sensor (batteries included)
    • (1) Quick Start Guide 


    • YoLink products work only in the USA and Canada 
    • The sensor is packaged with a quick start guide only. Please download the current Installation & User Guide