Parking Guidance System

PD-256 Ultrasonic Detector

A 2-in-1 ceiling-mounted detector with integrated status indication, designed for reliable space monitoring in multi-level parking facilities.

PD-256 ultrasonic detector

Integrated Detection and Space Indication in One Device

The PD-256 combines ultrasonic vehicle detection and LED space indication in one compact unit. It is developed for operators who need reliable occupancy data, reduced installation complexity, and clean visual guidance for drivers.

1
2-in-1 Design

Detection and status indication are integrated in a single ceiling device.

2
Reliable Sensing

Ultrasonic technology helps reduce false alarms compared with infrared or microwave sensing.

3
Lower Installation Cost

Single BUS wiring can reduce installation material cost by up to 45%.

4
Fast Maintenance

Detachable module structure supports quicker service and replacement.

Key Features

  • Advanced ultrasonic sensing helps reduce false alarm issues.
  • Detection range adjustable from 0.5 to 4.0 meters through external DIP switches.
  • Automatic temperature compensation improves detection stability.
  • Integrated occupancy detection and LED indication in one device.
  • Red/green and red/blue LED options with 360-degree visibility.
  • Single dual-line BUS communication supports up to 256 detectors.
  • Transparent ABS housing with waterproof construction.

Typical Applications

  • Multi-story parking ramps
  • Parking space inventory and occupancy monitoring
  • Driver guidance linked to illuminated directional displays

Integrated LED Guidance

Red, green, and blue indication colors can be used to show occupied, vacant, and reserved accessible spaces respectively, depending on the system configuration.

Easy Installation

Quick Setup in Just 4 Simple Steps

1

Mount the Base Plate

Secure the base plate to the ceiling with minimal hardware.

2

Connect BUS Cable

Single dual-wire BUS carries both power and signal for up to 256 detectors.

3

Attach the Module

Snap the detector module onto the mounted base for faster installation.

4

Start Operation

The system is ready for occupancy detection and visual indication.

Installation Benefits

Up to 45% less cabling cost

Simplified BUS wiring

Detachable module replacement

Faster maintenance access

Technical Specifications

Sensor TechnologyUltrasonic
Detection Range0.5 to 4.0 meters, adjustable by DIP switch
Status IndicationIntegrated dual-color LED indication
LED OptionsRed/green or red/blue combinations
Viewing Angle360 degrees
Temperature CompensationAutomatic calibration
Controller CapacityUp to 256 detectors through a central controller
Wiring MethodSingle BUS for power and communication
Maintenance DesignDetachable module with separate mounting base
HousingTransparent ABS cover, waterproof construction

Need a Smarter Parking Guidance Sensor?

Download the catalogue or talk to PSM about detector layout, zone design, and system integration.

Download Catalogue PDF Contact Our Team
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