Procon LD102 - Single Channel Loop Detector

A ground loop is a loop of wire set into a driveway or road that is connected to a detector such as this to sense the presence of a vehicle. Commonly used for controlling traffic lights but also handy for automatic gates for detecting a vehicle inside a property wanting to get out, when a vehicle drives over the loop the gate will open automatically, yet will ignore all pedestrians so anyone jumping the fence cannot use the ground loop to open the gate ...more about ground loops 

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Specifications

Voltage: 12V or 24V AC or DC

Standby current: 95mA so not solar friendly

Output: Clean contacts Common, Normally open and normally closed.

Modes: 'Presence' so output remain active while vehicle is present or 'Pulse' where out will hold on for a short time when a vehicle is first present then go off.

Sensitivity levels: Eight