Certified for use in hazardous environments, the RHTemp1000IS intrinsically safe humidity and temperature data logger is suitable for EtO sterilization. The combo logger can be started and stopped directly from a computer making data retrieval quick and easy, while its small, sleek size allows it to fit almost anywhere. This battery powered, stand-alone device measures temperature from a -20°C to +80°C (-4°F to +176°F) range, while its capacitive digital humidity sensor records from 0 to 100%RH (non-condensing). Designed with a stainless steel enclosure engraved with device information and serial number it can be placed in remote or hard to reach locations to capture readings.