Smart Wireless Temperature Sensor/Humidity Sensor Wide Range (-22 to 158 Degrees) for Fridge Monitoring Pet Cage/Tank Monitoring, Smartphone Alerts, Compatible with Alexa IFTTT – Hub Included

Price: $39.99 - $35.99
(as of Aug 30, 2025 08:56:28 UTC – Details)

From the brand

Product Dimensions ‏ : ‎ 6.93 x 6.93 x 11.06 inches; 10.55 ounces
Item model number ‏ : ‎ YS1603+2YS8003
Batteries ‏ : ‎ 2 AAA batteries required. (included)
Date First Available ‏ : ‎ September 22, 2020
Manufacturer ‏ : ‎ YoSmart
ASIN ‏ : ‎ B08JP2TDSC
Best Sellers Rank: #1,627 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #11 in Indoor Thermometers
Customer Reviews: 4.5 4.5 out of 5 stars 3,889 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });

DON’T TRY THIS WITH WiFi! Our unique LoRa-based sensors are different from WiFi, Zigbee, Z-Wave and most other wireless smart sensors in that they are extreme long-range (up to 1/4 mile open-air), low-power (years between battery changes), and work outdoors*, on other floors, and even in a metal box (like a fridge or mailbox)!
MONITOR & MANAGE your temperature and humidity concerns, whether it’s a fridge, a barn or bedroom, a chicken coop or a dog kennel, a plant nursery or your child’s nursery – anywhere! *Consider one of our weatherproof sensors, designed for outdoor use
ECONOMICAL SMART FRIDGE! Save thousands when you make ANY fridge smart (or smarter) with YoLink smart sensors. Start with temperature sensors, then add door/lid sensors, leak sensors and a Power Fail Alarm.
IFTTT & Alexa Integration: trigger IFTTT applets based on high or low temperature set points reached (when device alerts). Voice query Alexa for the temperature (only; humidity not supported at this time). Triggering Alexa routines is not supported at this time.
PLUG, PLUG & PLAY! Take advantage of direct ethernet connection and be online almost instantly when you plug your Hub into your router or network switch. Or, use hot spot mode to connect to your WiFi network in moments. Add devices in seconds using our Scan & Play QR code scanner in the app! Set your notification preferences, test your new sensors, then enjoy years of trouble-free operation!
KNOW NOW! You have many options for being notified of device activity! Receive a text, receive an email, receive a phone push notification (including Apple phone “Critical Alert” severe weather/Amber alert type notifications that will activate your phone even if in silent mode. Android phones offer similar functionality, depending on phone manufacturer). SMS messages are limited to the total of 5 times each device plus 5. A hub and one sensor provides you with 15 free SMS per month.