Smart 3G-GR1, No Display, Oxygen EC 0-25% Vol., 4-20 mA

SMART 3G-GR1 Gas Detectors for Group I Mines and Tunnels Without Display Features: • Stainless steel enclosure • Non-intrusive one man calibration via Hall effect switches (display version) • 4-digit display and multi-color LED light ring (display version) • Standard 4-20 mA 3 wire output • Optional 3 relay output (standard 3-relay output in display version) • Optional RS485 interface for Modbus communication. • Zero tracking to maintain the zero point steady from possible drifts • Ongoing system self diagnosis • ATEX I M2 Ex d I Mb • SIL 2HW & SIL3 SW certified