3M Hydrogen Fixed Gas Detector, HD-11, %LEL, 12-24V, 1 relay
Hydrogen fixed gas detector HD-11 offers flush mount design, 12-24 VAC or VDC operation, and SPDT alarm relay. HD-11 for use with alarm control panels.
Mounts in standard 4 x 4 electrical box. Alarm relay set at 10% of Lower Explosive Level (10% and 25% of LEL on HD-12). N.O. sealed reed type dry contact relays. Easy installation. No Maintenance or recalibration required. Supervised system.