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Smart Temperature and Humidity Sensor

Product Information


Smart Temperature and Humidity Sensor






Smart Sensor



Power Type


  • Works with Apple HomeKit, Amazon Alexa, Google Assistant, and SmartThings.
  • Battery Replacement-Free for Life: Ambient microlight collection, enabling a lifetime of battery-free replacement.
  • Remote Monitoring: Monitor environmental temperature and humidity changes anytime, anywhere (with internet connectivity).
  • Precision Detection: Built-in 4th generation Swiss-made high-precision sensor.
  • Multi-Scenes: Monitor temperature and humidity via the Meross app anywhere anytime, such as baby’s room, refrigerators, basement, etc.
  • Real-time Alert Notifications: Receive instant notifications through our dedicated app when the temperature and humidity levels surpass your predefined thresholds.
  • Devices Automation: Set temperature and humidity conditions to trigger Meross device automation, such as the on/off of plugs, lights, and switches.
  • 2-Year Data Storage & Export: View and export temperature and humidity data for the past 2 years using the Meross app.
  • *The MS100F temperature and humidity sensor is only compatible with the MSH300 HomeKit hub, version 4.5.x or above.

Product Specs

Temperature Range
  • -10℃~50℃ / 14℉~122℉
  • (±1°C accuracy within 0-40°C, ±2°C outside that range.)
Temperature Accuracy
  • 0.3℃ / 0.54℉
Humidity Range
  • 0~95%
  • (±5% accuracy within 50-80% RH, ±10% outside that range.)
Humidity Accuracy
  • 5%
Power Supply
  • Solar: Solar power is activated when the ambient light intensity reaches 150 Lux. (No battery power is consumed)
  • Battery: CR2477
Supply Voltage
  • Sensor: 2.6-3.6V
  • Hub: 5V,1A
  • 1 x Status LED
  • 1 x Reset Button
  • (Insert a pin into the hole and hold for 5 seconds to initiate factory reset process.)
Dimensions (W x D x H)
  • Sensor: 2.2 x 2.2 x 0.73 in. / 56 x 56 x 18 mm
  • Hub: 2.32 x 1.61 x 0.83 in. / 59 x 41 x 21 mm
  • Sensor: 40g / 1.4oz
  • Hub: 0.88oz
Wireless Standard
  • Smart Hub: 802.11 b/g/n 2.4GHz Wi-Fi 433MHz
  • Smart Temperature and Humidity Sensor: 433MHz
  • US: FCC, IC
  • EU: CE, RoHS, WEEE
Package Contents
  • 1 x Smart Sensor
  • 1 x CR2477 Battery(Within the device)
  • 1 x User Manual
  • 1 x Double-sided Adhesive Tapes
  • 1 x Pin
  • MS100FH Only:
  • 1 x Smart Hub
  • 1 x USB Cable
  • 1 x Power Adapter
System Requirements
  • Smartphone running iOS 13 or later, Android 6.0 or later Existing Wi-Fi network.(Smart Hub)
  • Storage Temperature: -40°C~70°C (-40°F~158°F)
  • Storage Humidity: 0%~100%­
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