Product Description
STS PTM/MTNi/Ex (P/N: 131204 / 131286) Submersible Pressure and Temperature Transmitter
The STS PTM/MTNi/Ex is a high-performance submersible pressure and temperature transmitter engineered for precise, continuous level measurement in hazardous and demanding environments. Manufactured by STS Sensor Technik Sirnach AG in Switzerland, this robust sensor features a durable stainless steel probe combined with an integrated PT100 temperature element, allowing for simultaneous dual-parameter monitoring. It delivers a reliable 4…20 mA analog output and is fully ATEX certified (II 1G Ex ia IIC T4 Ga / II 1D Ex ia IIIC T…°C Da) for intrinsically safe operation in potentially explosive atmospheres. Equipped with a rugged 3-meter PUR cable, the transmitter is factory calibrated for specific pressure ranges (250 mbar for P/N 131204 and 1000 mbar for P/N 131286). This makes it an ideal solution for industrial tank level monitoring, chemical processing, and groundwater measurement where absolute safety and accuracy are required.
Technical Specifications:
- Manufacturer: STS Sensor Technik Sirnach AG
- Model: PTM/MTNi/Ex
- Part Numbers (P/N): 131204 / 131286
- Rated Pressure Range (Pst-Prated): 0 … 400 mbar g
- Calibrated Pressure Ranges: 250 mbar (P/N 131204) / 1000 mbar (P/N 131286)
- Output Signal (Iout): 4 … 20 mA
- Supply Voltage (Uin): +12 … 30 VDC
- Operating Temperature (Ta): -20 … 100°C
- Temperature Sensor: Integrated PT100
- ATEX Approval: SEV 20 ATEX 0418X (CE Ex)
- Explosion Protection Rating: II 1G Ex ia IIC T4 Ga / II 1D Ex ia IIIC T…°C Da
- Probe Material: Stainless Steel
- Cable Specifications: 3m PUR cable with shield EP

STS PTM/MTNi/Ex (P/N: 131204 / 131286) Submersible Pressure and Temperature Transmitter (Level Sensor)
Shop the STS PTM/MTNi/Ex Submersible Pressure and Temperature Transmitter (P/N: 131204 / 131286). This ATEX-certified, intrinsically safe level sensor features a 4-20mA output, integrated PT100, and a durable 3m PUR cable for highly accurate liquid level monitoring in hazardous environments.
| Brand | STS |
|---|---|
| Model | PTM/MTNi/Ex (P/N: 131204 / 131286) |
| Part No. | 946712858875 |
| Category | Electrical |
| Link | https://www.echuan-hydraulic.com/product/sts-ptm-mtni-ex-p-n-131204-131286-submersible-pressure-and-temperature-transmitter-level-sensor |




