7ft Probe-Shaped Temperature Sensor

Temperature Sensor with 2.1 m Cable – Probe Style by NTI

In server rooms, control cabinets, or production halls, precise temperature monitoring is key to ensuring stability and efficiency. 

The ENVIROMUX‑STSM‑E7 from NTI provides exactly that – with a 2.1 m cable length, available in a robust ABS plastic housing with ventilation holes or in aluminum for faster thermal response. 

The sensor measures from ‑20 to +60 °C with ±0.4 °C accuracy in the core range (+5 to +60 °C) and delivers reliable, noise‑immune data via digital RS485 signal – even across long cable runs. Included is an RJ45 coupler for extending the connection up to 305 meters with CAT5/6 cable – ideal for mounting the sensor exactly where it’s needed, whether on a rack ceiling or machine surface. When integrated into ENVIROMUX‑2D (Rev C), ‑5D, or ‑16D, it becomes the heart of your environmental control system. 

The versatility of the ENVIROMUX‑STSM‑E7 makes it a top choice for a wide range of applications. The ABS housing with ventilation captures ambient temperature efficiently, while the aluminum version (E‑STSMA‑E7) is optimized for surface temperature measurement – perfect when fast thermal reaction is required. With a low power draw of just 20 mA at 12 VDC (from the ENVIROMUX system), it is both efficient and maintenance‑free. 

The optional ENVIROMUX‑FSC fiber converter extends the sensor range up to 2 km, making it ideal for large buildings or distributed sites. With an MTBF of over 3.9 million hours and certifications for CE and RoHS, it’s built for long‑term reliability. 

The ENVIROMUX‑STSM‑E7 is more than a sensor – it’s a flexible tool for preventive maintenance. No calibration, no external power, quick installation using adhesive mount or screws. Its 2.1 m cable length and included RJ45 coupler allow clean and fast installation, even in tight spaces. 

When combined with humidity sensors like the ENVIROMUX‑STHSM‑E7 or alarm modules such as the ENVIROMUX‑SRN‑BCNL piezo siren, it forms an intelligent monitoring network. An IT service provider reported: “We installed 15 STSM‑E7 sensors across an edge data center – the 2.1 m length and RJ45 coupler made installation possible in under 45 minutes. Since then, we’ve had accurate hotspot monitoring and zero false alarms.” This sensor ensures operational continuity, energy efficiency, and compliance – with minimal effort. 

Key Strengths of the ENVIROMUX‑STSM‑E7

• Dual housing options: ABS with ventilation for ambient air, or aluminum for surface measurement – fit for every use case.
• High accuracy: ±0.4 °C (+5 to +60 °C), ±0.7 °C (‑20 to +5 °C) – reliable for all climate zones.
• Flexible extension: 2.1 m cable + RJ45 coupler for up to 305 m; optional fiber converter for up to 2 km.
• NTI integration: Compatible with ENVIROMUX‑2D/5D/16D, direct power supply, real‑time data in the dashboard.
• Durable and efficient: MTBF > 3.9 million hours, only 20 mA power draw, CE/RoHS certified.

Proven Applications and Real Results

The ENVIROMUX‑STSM‑E7 delivers tangible benefits in practice – here are real success stories:

• Server rooms & racks: Aluminum housing mounted on switch surface; a data operator prevented overheating before CPU throttling occurred.
• Manufacturing facilities: ABS housing in air stream; a factory automated ventilation and saved 18 % energy.
• Control cabinets: 2.1 m cable fits tight spaces; a utility provider avoided summer outages.
• Warehouses & logistics: Used with humidity sensor; a retailer protected sensitive goods from temperature fluctuations.
• Edge computing sites: Fast mounting with coupler; a service provider monitored 8 locations centrally.

Technical Highlights in Detail

Engineering that combines flexibility and precision:

• Measurement range: ‑20 to +60 °C – ideal for indoor, HVAC, or cooling applications.
• Accuracy: ±0.4 – 0.7 °C, digitally calibrated, no readjustment required.
• Connection: RJ45, RS485, includes coupler for CATx up to 305 m.
• Power supply: 12 VDC, 20 mA – direct from ENVIROMUX system.
• Housing: ABS with ventilation or aluminum – depending on application needs.

Available Models:

• E‑STSM‑E7: Plastic probe (sensor in ABS housing)
• E‑STSMA‑E7: Aluminum probe (sensor in metal housing)

Summary and Compatibility:

• Temperature sensor for ENVIROMUX‑xD systems
• ‑20 to +60 °C range
• ABS housing with vent holes or aluminum for surface and ambient measurement
• High resistance to external interference on the cable
• Up to 305 m with RJ45 coupler via CAT cable
• No external power supply required – powered by ENVIROMUX main unit
• 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)