Honeywell 75SCL Cartridge Olive Color, Threaded, 1 PR G3251202 Instructions Head Protection Graphics No Instructions Head Protection Graphics No Graphics Accessory Slots Yes Graphics None ANSI Classification Type 1 Hydrogen Gas Detector Gas Type H2 Number of Channels 0 Sensor Range 1 Percent and 2 Percent 25 Percent and 50 Percent LEL Alarm Type Audible and Visual Display LED Status Indicator Yes Features On Board Relays At 1 Percent and 2 Percent Hydrogen Concentration Dry Contacts Can Be Monitored By Scada Modbus Etc NEMA Rating Type 1 IP Rating IP10 Connection Plugs Terminals For Use With Stand Alone Building Automation Systems Fire Alarm Panels Burglary Alarm Panels formaldehyde hydrogen chloride