IoT Products

PDT2-L is our LoRaWAN Operated Low Power Differential Pressure Transmitter With Built-in Temperature Sensor for Pressure and Flow Measurement of Gas Media. It is designed to work in harsh environments and provide accurate measurements. Find out more at Ellenex.

Technical Specification


  • Range: Standard Range: ±500 Pa 

    (or other ranges on request)

  • Accuracy: ±0.2 (typ.) %Span

    (combined linearity, hysteresis, repeatability)

  • Resolution: ±0.02 %Span

  • Pressure Reference: Bi-directional Differential

  • Temperature Accuracy: ≤±2 °C
  • Temperature Coefficient of Zero: ≤±0.05 %FS/°C

  • Temperature Coefficient of Span: ≤±0.05 %FS/°C

  • Long Term Stability (1 year): ≤ ±0.05 Pa

  • Response time: ≤1 mS
  • Pressure Overload: 100 %FS

  • Pressure Cycles (Zero to Full Scale): 10+ Million

  • Compensated Temperature: -20 ~ +85°C


  • Power Supply: Built-in Replaceable Lithium Battery, External Power (option)

  • Rated Voltage: 3.6 V

  • Battery Lifetime: 100,000+ readings and 20,000+ transmission

(With UDP protocol/ More than 10 years for most applications)

Physical Specification

  • Media compatibility: Air, Inert Gas

  • Process Connection: NPT1/8” Female (or others on request)

  • Weight: 450 g

  • Protection Rate: IP66, UV Protected


  • LoRaWAN® Version, Class: 1.0.2revB, Class A (Class C on request) 

  • LoRaWAN® Frequency Zone: AS923, EU868, US902-928, AU915-928 (other zones available on request)

  • LoRaWAN® Activation Type: OTA (default), ABP

  • Sampling Type: Periodic (default), Event triggered

  • Sampling Period: Configurable via downlink (default 4 hours)

  • Transmission Type: Per sample (default), Event triggered, Conditional

  • Parameter Configuration: Over-the-air via LoRaWAN® downlinks, Locally via wireless connectivity

  • Firmware Update: Locally via Wireless Connectivity, Over The Air



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