GTO FM139 Gate Opener Vehicle Sensor Exit Wand

The GTO Exit Wand Vehicle Sensor provides hands-free automatic gate operation by detecting vehicles as they approach. Ideal for residential, agricultural, and commercial applications, this wand offers a simple alternative to loop detector systems, installing in a fraction of the time and with no risk of drive-over damage.

Using advanced electromagnetic sensing technology, the GTO Exit Wand detects moving metal masses within a 3–12 ft. adjustable radius, triggering your automatic gate operator to open. It works with both single and dual gate systems and consumes very little power, making it ideal for solar-powered setups.

Standard Features

• Hands-Free Activation: Automatically opens the gate when a vehicle approaches.

• Sensor Type: Electromagnetic vehicle-in-motion detection.

• Adjustable Sensitivity: Potentiometer board adjusts detection radius (3–12 ft.).

• Relay Latch Time: 2 seconds.

• Power Efficient: Very low power draw (1.5 mA) for solar applications.

• Input Voltage Range: 8–32 VAC or 8–26 VDC.

• Noise Rejection: Designed to filter 50/60 Hz line noise near power lines.

• Durability: No drive-over loops to wear out or fail.

• Dimensions: 1.75” (44.5 mm) diameter x 16.75” (425.4 mm) length.

• Note: Not intended as a safety device.

Available Models & Lengths

• FM139 – 50 ft. (15.3 m)

• FM140 – 100 ft. (30.5 m)

• FM141 – 150 ft. (45.7 m)

• FM141-250 – 250 ft. (76.2 m)

• FM141-500 – 500 ft. (152.4 m)

• FM141-1000 – 1000 ft. (304.8 m)

How It Works

The GTO Exit Wand detects shifts in the Earth’s magnetic field caused by moving vehicles. Once detected, it sends a signal to your gate operator for automatic exit. Because stationary metal objects can occasionally trigger activation, the wand is not recommended for areas where children are frequently present.

The GTO Exit Wand is a reliable, installer-friendly solution for secure, hands-free gate exits with minimal installation time and maximum efficiency.