Operating Voltage : 230V (±10V), 50Hz Outputs : 1.) RS-485 Modbus RTU compatible with PLC’s, SCADA, & DCS systems 2.) 4-20 mA analog output 3.) Relays (dry contact) with programmable alarm level 4.) One relay for fault condition Operating Temperature Range : -40°F to +158°F (-40°C to +70°C) Humidity : Up to 95%, non-condensing (withstands up to 100% RH for short periods)

• Maximum number of data channels: 1-16 analog or 1-480 digital channels offer broad gas-sensor coverage. • Configurable for permanent or periodic indication. • Three (3) programmable alarm relays, providing broad notification capability. • Digital (when connected to an RS-485 interface), analog and relay outputs provide reliable status information across a range of communication formats. • Modular measurement unit (3Ux19”) is compatible with industry standard size rack or standalone installation. • Integrated two (2) line LED display for gas concentration. • High maximum lengths of communication line for long-distance notifications: via 4-20 mA analog, up to 3937 feet (1200m); via RS-485, up to 16400 feet (5000m). • Compatible with PLC and SCADA. • High-level audible alert.