Sensor Interface Board

Interface Board for Electrochemical Sensor

The ESi-V1 and ESi-V2 boards manufactured by Technocomm-IoT are designed to work with 3 & 4 electrode electrochemical sensors measuring NO2, SO2, CO, and O3, up to ppb level sensitivity. The interface board provides multiple interface options including Analog (uncompensated) as well as digital (I2C and UART) interfaces (compensated) for direct connection to a third-party host digital device. The units are designed to be easy to use and are configured using an online application to enter the device parameters and settings as well as the digital interface.


  • Compact size 36x36x25mm (with sensor)
  • Analog and digital interfaces
  • USB and BLE interfaces
  • Sensor configuration on secure website
  • Integrated data logger
  • Threaded mounting hardware
  • Pre-configured ready for use with Sensors
  • Precision on board Temperature and Humidity sensors for compensation
  • ESD protection on all pins and USB interface


  • 5V DC @ <20 mA
  • Operation from -25oC to 50oC
  • ESD protection on all pins
  • Weight <20g with sensor
  • ESi-V1 for CO and SO2 (Red PCB)
  • ESi-V2 for O3 and NO2 (Blue PCB)
  • Analog full scale ~1.5v @ 5000 ppb
  • Full range of communications interfaces
  • -20o / +50oC operation

Communicates with other sensors