Temperature/Humidity/Dew Point Probe Sensor

ENVIROMUX-STHSM-E7 Temperature and Humidity Sensor with 2.1 m Cable by NTI

In a digital world where server rooms, control cabinets, and production areas operate 24/7, reliable environmental monitoring is not optional – it’s essential. 

The ENVIROMUX-STHSM-E7 from NTI delivers exactly that reliability: a compact digital sensor with a 2.1 m cable that measures temperatures from -20 to +60 °C and relative humidity from 0 to 90 % with high accuracy – consuming only 7 mA of current. 

Thanks to RS485 communication and digital signal transmission, it is resistant to electrical noise even across long distances. Included is an RJ45 coupler allowing cable extension up to 305 m using CAT5/6 – perfect for flexible installation in racks, ceilings, or remote locations. 

When integrated into NTI systems such as ENVIROMUX‑2D (Rev C), ‑5D, or ‑16D, it provides real‑time temperature, humidity, and dew‑point readings, enabling automated alarms, ventilation, or cooling when required. 

The ENVIROMUX‑STHSM‑E7 stands out for its blend of mobility, precision, and energy efficiency. With a ±0.4 °C accuracy in the key +5 to +60 °C range and ±3 % humidity accuracy for 20–80 % RH, it provides dependable measurements even in fluctuating conditions. 

The digital RS485 signal is immune to EMI – a major asset in industrial environments filled with electrical noise. The included RJ45 coupler ensures quick extension using standard network cables, while the optional ENVIROMUX‑FSC Fiber Converter extends the range to 2 km. Power is supplied directly from the ENVIROMUX system (5 VDC), requiring no external power source. 

With an MTBF of over 4.1 million hours, this sensor is built to last. A logistics company deployed it in a climate‑controlled warehouse where dew‑point monitoring detected humidity spikes from a leaking door early – preventing mold and reducing monthly losses. 

The ENVIROMUX‑STHSM‑E7 is the ideal all‑round solution combining flexibility with precision. CE and RoHS certified, featuring a compact design and 2.1 m cable, it is ready to deploy in any infrastructure – from small server rooms to large‑scale industrial halls. Combined with other NTI components such as the ENVIROMUX‑SRN‑BCNL piezo siren or the ENVIROMUX‑SOD‑3M oil leak sensor, it forms a smart and scalable monitoring network. Simple mounting (using adhesive or screws), long range, and low power consumption make it a sustainable choice for continuous environmental monitoring. 

Key Strengths of the ENVIROMUX‑STHSM‑E7

• High Precision: ±0.4 °C temperature (+5 to +60 °C), ±3 % humidity (20–80 %), dew‑point calculation included.
• Flexible Extension: 2.1 m cable + RJ45 coupler for up to 305 m with CATx, optional 2 km via Fiber Converter.
• Noise‑Resistant & Digital: RS485 signal immune to EMI, ideal for long‑distance industrial deployments.
• NTI Integration: Compatible with ENVIROMUX‑2D/5D/16D, direct power, real‑time data on dashboard.
• Ultra‑Durable: MTBF > 4.1 million hours, only 7 mA consumption, CE/RoHS certified.

Proven Applications and Practical Benefits

The ENVIROMUX‑STHSM‑E7 demonstrates its real‑world performance – here are examples of measurable results:

• Server Rooms & Racks: 2.1 m cable reaches top rack hotspots; a data operator prevented overheating, ensuring 100 % uptime.
• Control Cabinets & Outdoor Enclosures: Extended with CATx up to 200 m; a utility company protected transformer stations against summer heat.
• Warehouses & Logistics: Dew‑point alert on door opening; an electronics supplier avoided damage – saving over €15,000 per month.
• Production Facilities: Used with automatic ventilation control; a factory cut machine condensation by 80 %.
• Small Offices & Edge Computing: Plug‑and‑play installation (2.1 m reach); a service provider monitored five remote sites centrally without extra power supply.

Technical Details at a Glance

Explore the design engineering behind its accuracy and reliability:

• Measurement Range: ‑20 to +60 °C, 0–90 % RH, dew‑point enabled.
• Accuracy: Temperature ±0.4–0.8 °C, Humidity ±3–4 %, digitally calibrated.
• Connection: RJ45, RS485, includes coupler for CATx extension up to 305 m.
• Power Supply: 5 VDC, only 7 mA – powered directly by ENVIROMUX unit.
• Certifications: CE, RoHS – environment‑friendly and globally approved.

Compatibility and Summary:

• Temperature, humidity, and dew‑point sensor
• Operating range: ‑20 to 60 °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)