Lead-acid storage batteries emit hydrogen while gassing during charge. Hydrogen concentration of 4% to 75% by volume in air are potentially explosive. Hydrogen gas detector is designed to provide for dissipation and warning before any concentration reaches the lower explosive limit (LEL) of 4%.

This device is required for your battery room to be in compliance with IEEE Std 450, National Fire Protection Agency (NFPA) Article 64 & Uniform Building Code (UBC) Sect 6400. Failure to monitor hydrogen gas production & alarm when certain thresholds are reached voids your insurance policy & exposes your company to severe risk should any in juries result from a non-passive hydrogen gassing event. The HDGI is an affordable piece of your safety plan.