ODALOG L2 – Mobile H2S Detector

The OdaLog® range are portable gas detectors specifically designed for the wastewater industry, industry-proven gas detection specialist instruments for harsh environments. Due to the nature of the environment in which the instrument has to operate, the OdaLog® is designed to be intrinsically safe, corrosion-resistant, robust and able to log data for extended periods of time.

The OdaLog® is primarily used at a location close to the source of Hydrogen Sulphide (H2S) emissions such as those found within sewerage pumping stations, receiving manholes and inside sewer collection lines.

The OdaLog® interfaces with easy to use OdaStat-G software and allows users to set up the OdaLog® and download logged data in a user friendly format. All data is presented in tabular or graphical form to highlight significant variations in H2S levels over time. The OdaLog® uses IrDA (Infrared Data Association) technology to communicate between the logger and its proprietary OdaStat-G software.



  • Portable gas monitor and data logger
  • Measurable gases: H2S, CO, Cl2, HCN, NO, NO2, SO2
  • Long term recording of gas concentrations


  • Long battery life, up to 12 months
  • Uses Infa Red communication for faster downloading
  • Large clear LCD display
  • Memory capacity up to 6 months
  • Selectable logging intervals
  • Sensor protection grill
  • Durable non-corrosive plastic body with stainless steel handle
  • Easy calibration, no need to open unit
  • IP66/68 Ingress protection
  • Easy to install and user-friendly operation


  • Gas monitoring in manholes, drains and pits
  • Odour monitoring in sewer and streaming water
  • Ventilation pipes and rising mains
  • Inside sewer collection lines
  • Selected areas in treatment plants
  • Asset management and odour control


OdaLog L2 DataSheet
OdaLog L2 Brochure
OdaStat-G Presentation
OdaLog L2 Manual
OdaLog L2 Declaration of Conformity