Smart Temperature and Humidity Sensor Kit
  • Monitor temperature and humidity via Meross app anywhere anytime, such as baby's room, refrigerators, basement, etc.
  • Get instant alerts when the temperature and humidity exceeds your preset values. Protect the people or things you care about.
  • Compact size(1.57 x 1.57 x 0.55 in.), thread for fixation, with long range connection(100 ft typical), you can deploy the device easily. 
  • When Temperature or Relative Humidity reach particular value, trigger my meross thermostat or humidifer on/off automatically.
  • View or simply extract the history data, to analyze how those data affect your life.





                               Hardware Features-


Temperature Range 

-10°C~50°C (14°F~122°F

Humidity Range


(Prolonged exposure to >80% RH may create an offset of up to 3% in the readings. 

 This effect gradually reverses after return to <80% RH conditions.)

Battery                              CR2477, typical over 1 year life

1 x Reset button

Insert a pin into the hole and hold for 5 seconds to initiate factory reset process

LED 1 x Status LED
Dimensions (W x D x H) 1.57 x 1.57 x 0.55 in. or 40 x 40 x 14 mm
Weight 25g or 0.9 oz

Temperature Accuracy

(0°C~40°C / 32°F~104°F)

±0.3°C / ±0.5°F typical, ±0.5°C / ±0.9°F maximum

Temperature Accuracy

(Full Range)                                       

±0.7°C / ±1.3°F typical, ±1.2°C / ±2.2°F maximum

Humidity Accuracy

(@25°C / 77°F from 20% ~80%) 

±3.0% typical, ±4.5% maximum


Humidity Accuracy

(@25°C / 77°F from 0% ~100%) 


±4.5% typical, ±7.5% maximum


                                   Wireless Features-


Wireless Standard  





Certifications                    FCC, CE, RoHS
Package Contents

1 x Smart sensor

1 x Hub

1 x CR2477 battery

1 x User manual

1 x Double-sided adhesive tapes

1 x Thread

1 x USB cable

1 x Power adaptor

System Requirements Smartphone running iOS 9 or higher, Android 4.1 or higher

Existing Wi-Fi network

Meross smart hub


Storage Temperature: -40°C~70°C (-40°F~158°F)

Storage Humidity: 0%~100%­





                                                  1. How many smart home devices can the Meross app control?

                                                  2. Can my Meross smart home devices be controlled by multiple phones?

                                                  3. Do Meross smart home devices retain the selected settings if it encounters a power outage?

                                                  6. What should I do if my smart home device time doesn't match the real time?

                                                  7. How do I control Smart Devices by Amazon Echo/Dot/Tap with voice commands?

                                                  9. Why I didn't find my device on "Select a Device Page" in Meross app?

                                                  10. Do my Meross smart devices support Campus, Hotel, Airport or Shopping Mall WiFi Hotspots?

                                                  14. How to make my Meross devices work with IFTTT?

                                                  15. Do Meross devices work with my Fritz!Box?

                                                  40. How many MS100 does one Meross Smart Hub support?