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HLS-442 Hydrogen Sensor

Hydrogen Leak Sensor, 0-4.4% H2, CAN Interface, Baud Rate 500k

The HLS-442 Hydrogen Leak Sensor is an accurate, fast-responding sensor designed for installation in vehicles and hydrogen fueling stations.

Key Features

  • Concentration range of 0-4.4% H2
  • Accuracy of +/- 3000 ppm
  • Speed of response <2 sec
  • Speed of recovery <10 sec

Key Benefits

  • High sensitivity to hydrogen gas
  • Low cross sensitivity
  • Fast response time
  • Low power consumption
  • Long-term stability and reliability
  • Long lifetime

HLS-442 Applications

Detection of hydrogen gas leaks in hydrogen powered vehicles by installing the sensor in the following:

  • Cabin ceiling
  • Under the hood of the engine compartment
  • Beneath the trunk lid of hydrogen powered vehicles

The sensor also detects hydrogen gas in and around hydrogen fueling stations.

HLS-442 Product Facts

Interface CAN 2.0B 500kbit/s (default)
250kbit/s
125kbit/s
PWM
Supply voltage [V] 9 - 16VDC
nominal 13.8V
Power consumption average '75mA
start-up (<1s, <200mA)
Dimension [mm] 82.2 x 9.4 x 46.2 mm
Ambient temperature range [°C] -40°C to 85°C
Ambient humidity range [% r.h.] 5 to 95% r.h., non-condensing
Measurement range 0 to 4.4% H2 resolution 200ppm
Accuracy 3000ppm