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Weatherproof Temperature Sensor w/Probe, Extreme Hot/Cold Temp, YoLink Hub Required

  • $32.95
  • $39.99
Shipping calculated at checkout.




  • A smart thermometer sensor with multi-use wired probe, that can be used to monitor the temperature of air, surfaces and liquids in indoor and outdoor locations



  • 3.28 feet (1 meter) long external strip and 0.98 inches (25 millimeters) long detection probe
  • Temperature displayed on the YoLink app
  • Extremely accurate temperature figures
  • Self-calibration is available via the YoLink app
  • Portable; may be placed on a surface, in an object or enclosure, 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 lithium 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 ( 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 lithium batteries (2 AAA batteries)
  • 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 (or outside with probe 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
  • Monitor temperatures of surfaces when the sensor is affixed to the object, such as clamping the probe to a hot water pipe
  • 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: -20°F – 155°F (-28.9°C – 68.3°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: -22°F – 158°F (-30°C – 70°C) 
  • 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