SGC MiniLoop Detector

Ultra-Compact | Solar-Ready

The SGC MiniLoop is a compact, single-channel inductive loop detector engineered for reliable vehicle detection in parking and access control systems. Connected to an inductive loop embedded in the roadway, the MiniLoop detects vehicles as they pass over the loop and activates a relay output for seamless system control.

• Switch selectable Sensitivity. The detect sensitivity is the minimum change in inductance required to produce a detect output.  Four sensitivity settings are available on the switches to allow flexibility in configuration.
• Switch selectable Frequency. The frequency of the loop is determined by the inductance of the loop and the frequency switch setting. If the frequency switch is on, the frequency is reduced. It may be necessary to change the frequency to prevent cross-talk between adjacent loops on different detectors.
• Sensitivity Boost. (ASB) This feature sets the undetected level to maximum sensitivity and is used to prevent loss of detection of high-bed vehicles.
• Permanent Presence. This feature ensures detection of the vehicle will be maintained when the vehicle is parked over the loop for extended periods.
• Relay Modes. The detect relay may be configured for a pulse output or presence output. The pulse output can be configured to be energized on detection of a vehicle or when the vehicle leaves the loop. In presence mode, the relay output can be configured to be Fail-Safe of Fail-Secure.
• Selectable Pulse Time. This feature sets the length of time that the pulse relay will be energized. 1 Second or 0.2 Second. 
• Ultra-Compact Form Factor
  Ideal for tight enclosures and space-restricted control panels.
• Low Power Consumption (Solar-Friendly)
  Optimized for solar and low-power installations.
• Wide Operating Voltage
  Supports 12–24VDC systems for flexible integration.
• Installer-Friendly
  Simple wiring and dependable performance for access control applications.

• Safety loops for barrier arms and gates
• Arming loops for card dispensers
• Entry and exit vehicle detection
• Vehicle counting systems
• Solar-powered gate and parking solutions

• Supply Voltage: 12–24VDC
• Current Draw:
  • 34 mA max (active)
  • 23 mA standby @ 12V

• Height: 3/4 in
• Width: 1-7/16 in
• Depth: 2-3/16 in (including connector)

The SGC MiniLoop delivers dependable vehicle detection in a remarkably small package. With low power draw and broad application support—from gates and barriers to solar installs—it’s an excellent choice for modern access control and parking environments.