ST130 series head-mount transmitters with thermocouple or RTD inputs are ATEX-approved for potentially explosive atmospheres with flammable gases present. The devices are loop-powered and provide a proportional 4-20 mA output. They also carry CE and UL/cUL Class 1 Div 2 Zone 2 approvals, and are configured via USB cable with free Windows software. Units operate across wide ambient temperature changes, and are highly resistant to RFI, EMI, ESD and EFT effects.