The Linear FM139 is a vehicle sensor exit wand from Linear, designed for use in automatic gate and access control applications. Buried electromagnetic vehicle sensor exit wand with 50 ft cable. Operating voltage: 8-26V AC, 11-30V DC. Contact configuration: Dry contact relay output, 1 amp max at 30V DC, 2-second pulse.
A: The FM139 uses a dry contact relay output rated at 1 amp max at 30V DC, with a 2-second pulse time.
A: The FM139 comes with 50 ft of cable. The FM140 has 100 ft, FM141 has 150 ft, and FM141-250 has 250 ft.
A: Install the wand 2 ft from the driveway edge and no more than 12 in deep.
A: The FM139 detects iron-based metal in motion within a 12 ft radius using electromagnetic sensing.
A: The FM139 operates on 8-26V AC or 11-30V DC with a typical current consumption of 1.5-3 mA.
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