IoT Products

PDT2-N is our NB IoT - Cat-M1 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: ±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 kPa

  • 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: 50,000+ readings and 10,000+ 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


  • SIM Card Type: 4FF Nano-SIM, from any Network Provider

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

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

  • Power Consumption: Power Saving: < 5uA, Transmission: < 220mA

  • Communication Standards: Cat-NB1 (NB-IoT), Cat-M1 (option of back support by GPRS)

  • Communication Bands: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B26/B28 and B39

  • Data Rates: Cat-M1: 375Kbps (DL)/375Kbps (UL) NB-IoT: 32Kbps (DL)/70Kbps (UL)

  • TX Power: 23dBm

  • Min Receiver Sensitivity: Cat-M1: -107dBm, NB-IoT: -113dBm

  • Antenna: Internal (Default)/ External (customised options available)

  • Optional Features: 

    • Attach without PDN (Packet Data Network)

    • Support for IPV6
    • SMS communication
    • Mobility support (Cat-M1 only)