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Temp & Humidity Sensors
NiuBoL high-precision temperature and humidity sensor with display (temperature and humidity transmitter). This article details its IP66 protection rating, Modbus-RTU communication protocol, diverse output signals, and core application advantages in industrial scenarios such as computer rooms, warehouses, and agricultural greenhouses.
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In the field of environmental monitoring, the accuracy of data acquisition is the foundation, while data visualization is the key to improving management efficiency. The NiuBoL temperature and humidity sensor with display not only converts environmental parameters into precise electronic signals for upload to the cloud, but also allows on-site operations and maintenance personnel to grasp real-time conditions at a glance through its high-brightness digital display.
Whether in a quiet museum archive or a complex industrial workshop, this "what you see is what you get" monitoring method provides great convenience for manual inspections and emergency handling. It serves both as a sensitive detector and an intuitive display terminal.

The NiuBoL sensor incorporates industrial-grade ESD (electrostatic discharge) safety protection and power reverse connection protection, greatly reducing the risk of damage during installation. Its housing achieves IP66 waterproof and dustproof rating, easily handling harsh industrial environments with high humidity and heavy dust.
Core Unit: Selected high-precision temperature and humidity measurement unit with built-in temperature compensation technology, ensuring data consistency across different ambient temperatures.
Extremely Low Drift: Excellent repeatability and stability, requiring no frequent calibration during long-term operation.
Split Support: The sensor supports up to 20 meters of external probe cable, allowing the host to be installed in an easily observable location while extending the probe into high-temperature, high-humidity, or narrow monitoring targets.
To meet diverse system integration needs, NiuBoL offers two mainstream output configurations:
RS485 Signal Output: Standard Modbus-RTU protocol, convenient for integration with PLC, DCS, or third-party IoT platforms.
Analog + Digital Hybrid: Provides 4-20mA (dual-channel analog signals for temperature and humidity) combined with RS485 output, meeting the needs of simultaneous use with traditional secondary instruments and modern digital systems.
| Parameter Name | Technical Specification |
|---|---|
| Power Supply Voltage | DC 10V-30V wide voltage input |
| Communication Protocol | RS485 (Modbus-RTU) |
| Output Signal | RS485 or 4-20mA + RS485 |
| Display Type | High-brightness digital tube or LCD real-time display |
| Protection Rating | IP66 (waterproof, resistant to fine dust) |
| Probe Features | Waterproof, high-temperature resistant, corrosion-resistant design |
| Installation Method | Wall-mounted or equipment-integrated installation |
Electronic equipment is extremely sensitive to temperature and humidity. The NiuBoL sensor can monitor environmental changes in real time, preventing circuit shorts due to excessive humidity or equipment derating damage due to high temperatures.
In agricultural greenhouses, flower bases, and Chinese herbal medicine planting areas, moisture and heat determine crop yields. Through the standard Modbus protocol, the NiuBoL sensor can link with irrigation systems to achieve automated temperature and humidity control.
The storage of medicines and food has extremely strict threshold requirements for temperature and humidity. The sensor not only displays values in real time but can also set alarm thresholds with backend platforms and record alarm counts, ensuring full compliance.
In cement curing rooms, paper mills, textile workshops, and tobacco warehouses, stable humidity guarantees product quality. The high reliability of NiuBoL ensures 24-hour continuous monitoring of production lines.

NiuBoL adopts a wall-mounted housing design with fixing holes on the back, allowing easy mounting on walls, ceilings, or equipment sides. Its integrated design eliminates complex assembly processes, with simple and clear wiring.
Selection Tips
If large-scale remote networking is needed: Prioritize the RS485 version to reduce wiring costs through bus structure.
If connecting to legacy control cabinets: The 4-20mA analog version better compatibles with older automation equipment.
If the environment involves high-temperature steam: Be sure to select models with high-temperature-resistant probes and utilize the 20-meter cable function to place the host in a safe area.
A: The high-brightness digital display used by NiuBoL is very prominent in dark conditions and offers a wide viewing angle, convenient for management personnel inspections.
A: The sensor probe part features waterproof and dustproof design. Although it can withstand high humidity and short-term rain, for applications involving long-term complete immersion in water, it is recommended to consult technical personnel for specialized water level or immersion sensors.
A: The device supports address modification via Modbus commands. When mounting multiple NiuBoL sensors on the same bus, simply assign a unique ID to each device.
With its 10-30V wide voltage power supply, IP66 high-strength protection, and high-precision measurement unit, the NiuBoL temperature and humidity sensor with display has become a standard in industrial environmental monitoring. It not only solves the problem of "accurate measurement" but also addresses the pain points of "visibility" and "fast transmission" through real-time display and multiple signal outputs.
Choosing NiuBoL means equipping your core assets with a stable, reliable, and transparent microclimate protection system.
Want to learn more about NiuBoL sensor integration cases or obtain detailed wiring diagrams? Please contact our technical support team.temperature and humidity measurement of the scene.
Sensors & Weather Stations Catalog
Agriculture Sensors and Weather Stations Catalog-NiuBoL.pdf
Weather Stations Catalog-NiuBoL.pdf
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