EMX VMD202 Vehicle Motion Detector Manuals & Support

The EMX VMD202 is a one-piece vehicle motion detector with a buried probe. It senses moving vehicles up to 12 ft away at 5 mph or more, with no saw-cut loop.

It runs on 12 to 39 VDC or 12 to 27 VAC with very low standby current, so it works well on solar gates. The optional VMD202-R remote sets 10 sensitivity levels and then unplugs to stop tampering.

Buy the VMD202 (2 options)

Identify your model

Units built after September 2020 have a terminal block connector. Earlier units have a plug-in harness. Use the matching manual below.

Key specs

Detection	Moving vehicles, up to 12 ft at 5 mph minimum
Power	12 to 39 VDC or 12 to 27 VAC
Current	70 µA standby, 25 mA active
Sensitivity	10 settings with optional VMD202-R remote
Memory	Settings kept through power loss
Probe	Watertight, direct burial

Manuals and documents

Installation Manual

VMD202 Manual, Terminal Block Units (After 9-2020)
6 pages View PDF: VMD202 Manual, Terminal Block Units (After 9-2020) (opens in a new tab)
VMD202 Manual, Plug-In Harness Units (Before 9-2020)
7 pages View PDF: VMD202 Manual, Plug-In Harness Units (Before 9-2020) (opens in a new tab)

Spec Sheet

VMD202 Spec Sheet
2 pages View PDF: VMD202 Spec Sheet (opens in a new tab)

Troubleshooting

False triggering

Check the earth ground connection.
Disconnect the relay wires. If false calls stop, check the probe. If they continue, test on a 12 V battery for 5 minutes; if that cures it, use a separate clean power supply.
Look for moving metal near the probe: fences, signs, flagpoles, power lines, motors or invisible dog fences.

No output

Read COM and NO with an ohmmeter. It should read open, then close when a metal tool passes over the probe.
Check wire connections and replace the unit if the relay does not change.