IoT Products

CSD2-L is our Industrial LoRaWAN Operated Low Power Conductivity and Salinity Sensor. It is designed to work in harsh environments and provide accurate measurements. Find out more at Ellenex.

Technical Specification


●  Measure ranges conductivity: 

0- 200 μS/cm, 0- 2,000 μS/cm, 0- 20 mS/cm, 0- 200 mS/cm

●  Accuracy: ±1 (typ.) %FS (For more than 100 mS/cm appropriate buffer solution is


●  Resolution: 0.01-1 according to range mm

●  Measurement range salinity: 5-60 g/Kg

●  Measurement range TDS-KCI: 0-133,000 ppm

●  Temperature compensation: NTC

●  Storage Temperature: -10 to +60 °C

●  Operation Temperature: 0 to +50 °C


  • Power Supply: Built-in Replaceable Lithium Battery, External Power (option)
  • Rated Voltage: 3.6V
  • Battery Lifetime: 5,000+ Readings and 5,000+ Transmission
    (with UDP protocol/ more than 10 years for most of applications)

Physical Specification

●  Materials: Sensor Head: PVC, DELRIN, stainless steel

Enclosure: POM 

●  Max. Pressure on Sensor Head: 5bar

●  Weight: ~900 (for 3m cable) g

• Protection Rate: IP66 and UV protected enclosure and IP68 sensor head


  • 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


ISDN » W-Lan


Environment » Temperature Range » Industrial (-25°C / +65°C)