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Black Linear FM139 vehicle exit sensor wand, sixteen inch cylindrical form, fifty foot cable attached

Linear

Linear FM139 50ft Vehicle Exit Sensor security

SKU CH-BY32-HFWXC

Wired electromagnetic vehicle exit sensor with 50 ft cable, operating at 8-32 V AC or 8-26 V DC

  • TypeSecurity Locks
  • ColorBlack
  • Detects vehicles up to 50 ft away with electromagnetic sensor
  • Operates on 8V to 32V AC or 8V to 26V DC power
  • Compact 16 3/4 in wand fits discreet installations
  • Wired 50 ft cable allows flexible placement from controller
  • Compatible with multiple Grainger part numbers for system integration

Vehicle Exit Sensor 50ft

The Linear FM139 is a wired electromagnetic wand designed to detect departing vehicles at gates or driveways. It connects to compatible gate operators or access-control boards using the supplied 50 ft cable. Installers working on residential or light-commercial entry points will find the 8V to 32V AC or 8V to 26V DC operating range suited to standard low-voltage power supplies.

Sustained Detection Behaviour

The sensor maintains a continuous electromagnetic field along its 16 3/4 in length, triggering an output whenever a metal mass passes through the zone. Because the field is always active, the unit responds to queued traffic without the recovery delay that can affect pulsed or inductive-loop alternatives. The wide voltage tolerance helps prevent false drops during brown-outs or long cable runs.

Rugged Housing and Mounting

A black weather-resistant enclosure protects the electronics from rain, dust and temperature swings typical of outdoor gate posts. The wand’s slim 1 3/4 in profile allows it to sit flush against a post or bollard without protruding into the traffic lane. Pre-drilled mounting tabs accept standard hardware, and the fixed 50 ft cable eliminates splice points that could corrode over time.

Highlights

  • Detects vehicles up to 50 ft away with electromagnetic sensor
  • Operates on 8V to 32V AC or 8V to 26V DC power
  • Compact 16 3/4 in wand fits discreet installations
  • Wired 50 ft cable allows flexible placement from controller
  • Compatible with multiple Grainger part numbers for system integration

Specifications

BrandLinear
TypeSecurity Locks
ColorBlack

Questions about this item

Does the electromagnetic wand draw enough current to heat up when powered continuously at 26 V DC?

The sensor operates between 8 V and 26 V DC, so it is designed for continuous low-voltage use without excess heat buildup.

Which gate controller models accept the 50 ft cable and 8 V to 32 V AC input of this exit wand?

Compatible Grainger part numbers include 13X156, 13X157, 13X161, 13X162, 29RV46, 36A982, 36A983, 36A984 and 36A985.

Will the 16 3/4 in black wand fit the same mounting brackets as my older Grainger 36A982 loop detector?

Yes, the FM139 is listed as compatible with Grainger 36A982, so it shares the same mounting footprint and voltage range.

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