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SVB price: €306.68
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Excl. VAT, excl. shipping costs.
This is a NET-price excluding German VAT. Shipments to countries outside of the EU may be subject to import duties and taxes.
€306.68 This is a NET-price excluding German VAT. Shipments to countries outside of the EU may be subject to import duties and taxes.
Available variants:
Item no.
Model no.
BEPMARINE - Gas Detector FD-2

Product details

BEPMARINE gas detectors are processor-controlled and provide reliable sensor sensitivity for both LPG, CNG and gasoline vapors. Standard delivery includes a gas sensor with a 5 m connection cable.
BEPMARINE gas detectors should always be connected to the operating voltage, and therefore they have no on/off switch. This ensures maximum safety while you are on your boat or in your vehicle.
Explosive gas mixtures have a different density. Some are heavier than air and accumulate on the ground, others are lighter and rise, thus collect below the vehicle's roof.
You should always keep this in mind, when installing gas sensors!
By using the GD types with a second gas sensor, all potential hazards are taken into account and maximum safety is achieved.

For LPG and gasoline vapors that are heavier than air, mount the sensor near the ground, where the vapors are likely to accumulate.
For CNG vapors that are lighter than air, mount the sensor in the area of the ceiling, but not above cooking or heating equipment!

The FD-2 is the low-cost alternative to the 600 GD/GDL types and was designed to detect explosive gas mixtures with just one monitoring circuit. Delivery also includes a gas sensor with a 5 m connection cable. The connection for gas sensor and operating voltage is located on the back of the device. Additional connection options for other external components are not available.
The system may be tested by means of the "TEST" button.
The operating status as well as the alarm for existing explosive vapors are transmitted via built-in multi-color LED signals and an acoustic alarm (piezo buzzer).
Dimensions (WxHxD): 88 x 67 x 17 mm / 2.4" x 3.5" x 0.7". Operating voltage 10-30 volts.

Optical (LED) and acoustic (piezo) signals for sensor 1 and 2*
LED GREEN - no explosive gas mixture, no signal tone
LED YELLOW - sensor error detected, slow beep
LED RED - alarm, gas present, quick alarm sound

Signal tone medium/slow - warm-up phase - all LEDs flash yellow
Signal tone quick - ALARM - LED lights up red
Signal tonre slow - sensor error - LED lights up yellow

All details at a glance
  • Microprocessor control
  • *Two monitoring circuits can be used
  • Self-test possible
  • Built-in visual and audible alarm
  • *Connection for further external alarm devices
    (Load capacity max 800 mA @ 12 V, with larger currents use an additional relay)
  • *Connection for one fan (maximum load capacity 800 mA @ 12 V, for larger currents use an additional relay)
  • Operating voltage: 10-30 V DC
  • Current consumption 350 mA max.
  • Required fuse 2 A
  • Sensitivity 20% LEL (lower explosion limit)
  • Surface or rear mounting (max 2.5 mm panel wall thickness)
  • Dimensions (WxHxD) 88 x 67 x 17 mm / 3.5" x 2.4" x 0.7"
  • Electrical connection on the back of the device via one/*two connector strip/s with screw terminals
    The connections are clearly marked
    • + POSITIVE 10-32 volt DC (via fuse 2 A)
    • - NEGATIVE wiring system
    • B * POSITIVE control output for fan or relay (max 800 mA @ 12V)
    • A * POSITIVE control output for external audible alarm (max 800 mA @ 12V)
    • C * NEGATIVE for external audible alarm and fan (or relay)
      (NEGATIVE of the cylinder valve is connected to NEGATIVE electrical system, not with connection C!)
    • R Red sensor connection cable (sensor 1)
    • G Green sensor connection cable (sensor 1)
    • B Black sensor connection cable (sensor 1)
    • R * Red sensor connection cable (sensor 2)
    • G * Green sensor connection cable (sensor 2)
    • B * Black sensor connection cable. (Sensor 2)
      * If only one sensor is used, contacts B and G of the unused sensor connection must be connected to each other.
      * only 600-GD

BEPMARINE gas sensor BL-SL-L
  • Housing dimensions Ø x H: 42 x 21 mm
  • Connection cable Ø x L: 3.5 mm x 5 m, wire colors red / green / black
  • Distance between mounting screws: 37 mm
  • 2 Phillips self-tapping screws 1.9 x 13 mm included

The sensor must be mounted in an area that is protected against (bilge or splash) water.
If the gas sensor gets wet, it is no longer safe/ready for operation and must be replaced!

The original gas sensor as a second sensor or spare can be ordered here.


en-flag Manual
PDF, 90,06 KB
en-flag Spare parts
PDF, 3,41 MB

What other SVB customers have to say

100% real reviews
Ernst G.
Flag of Germany Verified purchase
Purchase went smoothly. The Detector is not yet installed and therefore can not be rated by me yet.
arno S.
Flag of Germany
The device is good and useful. However, the detectors are very sensitive to moisture and too expensive in my eyes. One had to be exchanged after one year, after he got wet.

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