Mark IV Hydrogen Gas Detector

Product Type
Gas Detection Equipment


The hydrogen gas detector protects battery charging rooms and other locations where motive and stationary batteries are present by monitoring hydrogen gas levels. Lead-acid batteries on charge emit hydrogen gas after reaching the 80% recharge point. Concentrations of 4% to 75% mixed with air can be explosive. Sparks or hot surfaces can ignite them. The hydrogen gas detector will provide a warning and facilitate dissipation of the hydrogen, by operating alarms and exhaust fans before it reaches the lower explosive limit of 4%. In addition to protecting your property and employees, cost savings are also realized. Insurance premiums may be reduced as a result of a hydrogen gas detector installation. Electricity costs decrease as a result of controlled exhaust fan operation rather than continuous fan operation. Air conditioning and heating costs are also reduced as a result of the controlled fan operation. Two models are available: AC or DC, Optional accessories include steel junction box for mounting on wall or ceiling, remote panel for eye level placement, and modular cable for connecting the remote to the detector.

  • Continuous monitoring of hydrogen gas levels
  • Automatic operation
  • An 80-db warning alarm, and remote exhaust fan with alarm activation
  • LED status display
  • Simple Installation
  • Reliable, highly sensitive, highly stable, solid state sensor
  • Simple Installation
  • Long operating life
  • Dimensions (LXWXH): 7” X 4 1/2” X 2 1/4”
  • Mounting: Four 3/16-inch screws
  • Warranty: Five year warranty
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