NorthStar NP3 Loop Detector

Price: $295.00

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NorthStar NP3 Loop Detector

Northstar NP3 has been specifically designed and engineered for use in the Parking/Access Control industries and is designed for use where open, safety and exit loops are used. With standard operations including compatibility with all radio controls and more, the NP3 covers your low power, plug-in detection needs.

The NP3’s wide inductance range allows for use with small loops sometimes found in the Parking/Access Control industries (for recommended loop sizes please consult the Northstar Loop Information Guide).

Separate indicators for power/fault and detect output provide for quick visual verification of proper operation. Loop diagnostics are easily viewed with the front panel power/fault indicator.

Reliable operation and long field life are key engineering goals in every Northstar product.


Product Info
Features 3 selectable Sensitivities per channel
4 selectable Frequencies per channel
Single Output
Wrong voltage protection
Separate Power/Fault and Detect Indicators
Automatic Sensitivity Boost
Power Supply requirement 10 to 30 Volts AC or DC, 5mA nominal
Loop Scanning PREVENTS cross talk
Removable terminal strips for direct plug-in
1 Year Warranty
Specifications Output Rating: Solid State Detect 30mA Maximum current sink.

Outputs are protected from overvoltage or polarity reversal.

Power: 10 to 30 volts AC or DC

Inductance Range: 20uH to 1500uH

Temperature Range: -30 F to +180 F

Lead-In Length: up to 2500 ft. with proper lead-in and loop.

Dimensions: 1.0” H x 3.0”D x 4.0”W

Indicators – front panel indicators:
Power- Blue, solid with correct power supplied.
Fault- Yellow solid during a fault condition.
The channel detect LED will flash during a current fault:
Single flash and pause = Open Circuit Loop
Double flash and pause = Shorted Loop
Detect – Red, solid during detect

Sensitivity Boost – automatic during detect except in the
highest sensitivity setting (S1S2).


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