Humidity Sensors
Wireless Humidity and Temperature Sensors
Whether it’s artifacts or critical data, maintaining a relative humidity (RH) level between 40–60% can mean the difference between long-term preservation and irreversible loss.
IOT Plus Wireless and Wi-Fi Humidity Sensors remotely monitor relative humidity with ±3% accuracy (from 10–90% RH), along with temperature and dew point, across facilities or enclosed environments. When humidity moves beyond your defined thresholds, these scientific-grade sensors immediately notify you via text message, email, or phone call, enabling swift corrective action.
A Humidity Sensor for Every Business
As one of IOT Plus’ most versatile and widely adopted remote monitoring solutions, the IOT Plus Humidity Sensors are available in wireless commercial, enterprise, and industrial-grade models. Wi-Fi and Power over Ethernet (PoE) Humidity Sensors are also offered to support diverse deployment needs. Depending on the selected model, sensors can be customized with options such as 3–25 ft probe leads, 7-month NIST certification, and solar-powered operation.
The depth and flexibility of the IOT Plus Humidity Sensor lineup make it a trusted choice for museums, data centers, manufacturing facilities, life sciences, food processing units, agriculture operations, and art galleries. Choose a sensor below to continuously monitor environmental conditions around mission-critical systems, sensitive inventory, and high-value assets.
Applications
- Greenhouse Temperature and Humidity Monitoring
- Growhouse Humidity Monitoring
- Agricultrual Environmental Monitoring
- Walk-in Humidor Monitoring
- Art Gallery and Museum Environment Monitoring
Which Sensor is Right For Me?
- Enterprise AA-battery powered: Our most popular type is ideal for typical commercial & enterprise environments, such as server rooms. A 1,200+ ft. range readily covers most facilities.
- CC-battery powered: Compact sensor is great for space-restricted areas such as control cabinets or cold storage.
- Industrial: Sensor’s weatherproof, NEMA-rated enclosure withstands demanding indoor/outdoor use, e.g., warehouses & production facilities.
- PoE•X: Power over Ethernet sensors integrate with a building’s PoE network; it can also be used with a standard Ethernet infrastructure & powered via an optional AC adapter.
- Still not sure which sensor type to choose?
Sensor Features
- 2,000+ ft. Range through 18+ Walls
- Up to 12 Years of Battery Life
- Automated Data Logging
- Unbeatable Range Eases Networking
- Dependable, Worry-free Operation
- Streamlined Compliance & Data Analysis
Frequently Deployed Together

Open/Close
Our wireless open/closed sensors provide information on the status of doors, windows, cabinets, etc. Know if a building or area is being accessed when it should not be, or if a door or window has been left open.

Motion Detection
Our wireless motion sensors use an infrared sensing technology to accurately detect movements made by people/animals within 16.4 ft (5 m) range.

CO2 Gas
The mems based wireless carbon dioxide sensor allows you to monitor the level of carbon dioxide (CO2) gas in the surrounding air. Monnit wireless CO2 sensors have a small footprint and low cost
Ready for what comes next?
When we partner together, we can move your business forward, and with it, the entire industry.