The WisBlock Temperature and Humidity Sensor – RAK1901 adds precise environmental sensing to your WisBlock solution. Powered by the Sensirion SHTC3, it offers reliable temperature measurement from −40°C to +125°C and accurate relative humidity readings from 0–100% RH.
Designed for ultra-low power operation, the RAK1901 is ideal for battery-powered IoT devices. When combined with a WisBlock Core such as the RAK4631, data can be transmitted using LoRaWAN®, LoRa point-to-point, BLE or other connectivity options supported by the chosen Core.
📍 Note: The WisBlock platform allows the module to be fully powered down when not in use, reducing system power consumption for long-life applications.
KEY FEATURES
Wide Temperature & Humidity Measurement Range
Covers −40°C to +125°C and 0–100% RH, enabling reliable sensing across indoor environments, outdoor locations and demanding industrial conditions.
Accurate, Stable Environmental Readings
Delivers ±2.0°C temperature accuracy and ±2.0% RH humidity accuracy, providing trustworthy data for automation, monitoring and climate-control systems.
Ultra-Low Power for Remote Installations
Optimised for battery-powered WisBlock deployments; supports full module power-down via the WisBlock system to maximise battery life in remote sensors.
Plug-and-Play WisBlock Integration
Connects directly to WisBlock Base Boards and works seamlessly with WisBlock Core modules for fast prototyping and production-ready builds.
Consistent, Noise-Resistant Performance
Designed to deliver stable temperature and humidity readings even with fluctuating ambient conditions — ideal for data-driven control logic.
Works Alongside Other WisBlock Environmental Modules
Easily combine with light, barometric (eg. environmental) or gas (eg. CO2) sensors to create full environmental or weather-station solutions.
IDEAL FOR
Weather stations and environmental monitoring
Smart agriculture and greenhouse systems
HVAC and indoor climate optimisation
Industrial monitoring
Battery-powered IoT deployments
Home automation and smart alarms
WisBlock Temperature and Humidity Sensor – RAK1901 (Sensirion SHTC3)
The WisBlock Temperature and Humidity Sensor – RAK1901 is a compact, low-power module based on the Sensirion SHTC3, providing accurate environmental measurements for weather stations, HVAC optimisation, smart agriculture and indoor climate monitoring.

















