Combined Temperature, Humidity, and Dew Point Sensor

ENVIROMUX-STHSB Temperature and Humidity Sensor with Dew Point Measurement by NTI

In modern infrastructures such as data centers, production facilities, or storage warehouses, accurate environmental data is not just nice to have – it’s essential. 

The ENVIROMUX-STHSB from NTI delivers exactly that: a digital high-performance sensor that measures temperatures from -20 to +85 °C and relative humidity from 0 to 90 % with exceptional accuracy – even under harsh conditions. Thanks to its digital RS485 output and RJ45 connection, it’s immune to electromagnetic interference and cable noise, making it ideal for long-distance runs up to 305 m using CAT5/6 cabling. 

Integrated into NTI monitoring systems such as ENVIROMUX‑2D (Rev C), ‑5D, or ‑16D, it becomes the core element of your environmental monitoring setup: detecting hotspots, warning of condensation risks via dew‑point calculation, and enabling automated responses. 

The strength of the ENVIROMUX‑STHSB lies in its combination of precision and durability. Temperature readings achieve ±0.4 °C accuracy within the core range (‑10 to +85 °C), while humidity accuracy reaches ±3 % in the optimal range (0–80 % RH). 

The digital output eliminates signal degradation over long cables – a key advantage over analog sensors. With a current consumption of only 20 mA @ 5 VDC (supplied directly by the ENVIROMUX system), it is energy‑efficient and maintenance‑free. 

The optional ENVIROMUX‑FSC Fiber Converter extends the communication distance up to 2 km, making it ideal for large facilities such as logistics centers or outdoor cabinets. Dew‑point measurement provides early warnings of possible condensation – a feature invaluable in humid server rooms or cold‑chain applications. 

The ENVIROMUX‑STHSB is more than a sensor – it’s an intelligent guardian for your infrastructure. CE‑ and RoHS‑certified, with a 96 kbps data rate and full CAT6a compatibility, it integrates seamlessly into NTI’s existing monitoring ecosystem. 

Whether in hot server racks, damp storage areas, or dusty production environments, it delivers reliable data you can depend on. Combined with alarm devices like the ENVIROMUX‑SRN‑BCNL or leak sensors such as the ENVIROMUX‑SOD‑3M, it forms a complete protection network. Easy installation, long range, and electromagnetic resilience make it the sensor of choice for demanding environments. In one logistics facility with multiple climate zones, a network of STHSB sensors provided real‑time temperature and humidity tracking on a centralized dashboard – eliminating failures from condensation or overheating. This sensor is an investment in stability, compliance, and cost control.

Key Advantages of the ENVIROMUX‑STHSB

• Wide Measurement Range: ‑20 to +85 °C and 0–90 % RH – ideal for extreme environments like hot zones or cold storage areas.
• High Accuracy: ±0.4 °C temperature, ±3 % humidity (0–80 %) with integrated dew‑point calculation.
• Noise‑Resistant Signal: Digital RS485 protocol immune to EMI, supporting distances up to 305 m via CAT5/6.
• NTI Integration: Compatible with ENVIROMUX‑2D/5D/16D, extendable up to 2 km using Fiber Converter.
• Durable and Economical: Consumes only 20 mA, CE/RoHS‑certified, maintenance‑free, robust for continuous operation.

Real‑World Applications and Benefits

The ENVIROMUX‑STHSB excels in practical scenarios, proving how precise monitoring prevents damage – here are real use cases:

• Server Rooms & Data Centers: Detects rack hotspots up to 85 °C; an IT service provider prevented a short circuit via dew‑point alert – hardware saved.
• Industrial & Manufacturing Environment: Monitors heat in process zones; a factory automated ventilation – achieving 22 % energy savings.
• Refrigerated & Cold‑Storage Facilities: Accurate humidity monitoring at low temperatures; a food retailer
   reduced frost damage by 70 %.
• Outdoor Control Cabinets: Used with fiber extender over 1.5 km; a utility company protected transformer stations from summer overheating.
• Logistics Centers: Centralized humidity monitoring across large halls; a distributor prevented mold formation on
   sensitive goods.

Technical Specifications

Discover the engineering that ensures reliability and flexibility:

• Measurement Range: ‑20 to +85 °C, 0–90 % RH with dew‑point support.
• Accuracy: Temperature ±0.4–0.9 °C, Humidity ±3–4 %, digitally calibrated.
• Connection: RJ45, RS485, 96 kbps, CAT5/6 up to 305 m.
• Power: 5 VDC, 20 mA – direct from ENVIROMUX system.
• Certifications: CE, RoHS – qualified for global deployment.

Compatibility and Summary:

• Temperature, humidity, and dew‑point sensor
• Operating range: ‑20 to 85 °C
• Compatible with ENVIROMUX−2D, ENVIROMUX−5D, and ENVIROMUX−16D
• Not compatible with E‑MICRO‑TRH(P), E‑MINI‑LXO, E‑1W(P), and ENVIROMUX−SEMS−16(U)