Milwaukee 48 11 1850 M18 18V REDLITHIUM Lithium Ion, XC Extended Capacity XC5.0 Ah Battery Pack 11136826 Waveguide Product Type Ultrasonic Leak Waveguide Product Type Ultrasonic Leak System Package Quantity 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 Number of Batteries Included 1 Battery Chemistry Li Ion