CAS Dataloggers announces the new OdaLog G20 Hydrogen Sulfide Data Logger from ThermoFisher Scientific. The G20 is the next generation of the OdaLog family, featuring a digital H2S smart sensor. The new G20 is IP68 rated for use in harsh wastewater applications and ATEX IECEx certified for hazardous environments. OdaLog data loggers are used to monitor the gas level in treatment plants, sewers, collection lines, pumping stations for odor control, H2S remediation and troubleshooting problems such as corrosion. The new G20 models has new features including SD memory card that stores up to 10 million data points, built-in sensor health indication, Modbus communication for connection to SCADA systems, and RTx version with integrated 4G cellular modem for remote monitoring.