IoT Products

FMS2-N is our NB IoT - Cat-M1 Low Power Pulse Counter and Meter Interface. It is designed to work in harsh environments and provide accurate measurements. Find out more at Ellenex.

Technical Specification

Sensor Interface

  • Interface: Pulse (Reed Switch)
    (or other customised options on request)

  • Electric Connection: 1m cable (or other options on request)

  • Operating temperature range: -10 ~ + 70 °C

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

  • Rated Voltage: 3.6 V

  • Battery Lifetime: Typ. 500,000+ readings and 10,000+ transmission (With UDP protocol/ More than 10 years for most applications)

Physical Specification

• Materials: ASA or POM
• Weight: 350 g
• Protection Rate:  IP66 /IP68, 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)