Single Lane Vehicle Detector & Classifier

The AutoSense AS618 is available as AS-618-UDK-H, and AS618-EDK-H. The AS618 combines dual beams (i.e. two separate planes of detection) with an unsurpassed scanning rate of 360 scans per second per beam with angular resolution of 1 degree and 35 degrees field of view. The higher field of view compared to the 30 degrees of the AS615 makes the AS618 suitable for installation in locations with mounting height limitations such as tunnels and low gantries. The classification parameters are fully configurable and can be defined in terms of vehicle length, vehicle height, vehicle width, profile and tow bar detection.

The AS618 is supplied in a Nitrogen-filled, hermetically sealed package, which ensures high reliability and long life time. The product is a Class-1 laser (Eye safe) and is equipped with window heater, which allows it to operate down to -40 degree C.

The AS618 communicates over RS-422 and can be set to communicate vehicle class and vehicle presence over a low speed serial interface or alternatively, range and intensity for every single pixel in real time over a high speed serial interface. 


  • Vehicle Detection
  • Vehicle Classification
  • Camera triggering


  • High scan rate (360 scans per second per beam 
  • 35 degree field of view 
  • 1 degree angular resolution 
  • 120V and 240V versions available 
  • Dual beam design
  • Overlapping pixels, continuous field 

Product Specifications


AS618-UDK-H (120V)

Use, Single Lane

Single Lane - Open Road or Toll Barrier to achieve vehicle detection, separation, classification and camera trigger

Use, MultiLane

Multi Lane - Open Road to achieve vehicle detection, separation, classification and camera trigger when integrated with additional AS618-UDK-H's

Typical mounting location

Overhead: 16.5 Ft – 25 Ft

Field of View

35 degrees

Angular resolution

1 degree

Scan rate

360 scans per second per beam

Vehicle Classification Categories

11 standard, plus 20 user-definable categories

Vehicle Detection Accuracy

>99% (ORT)

Vehicle Classification Accuracy

>95% (into 6 vehicle classes)

Vehicle Speed Accuracy

± 10%

Vehicle Length Accuracy

± 10%

Vehicle Height Accuracy

± 0.5 inches Max


Power Input

90-140 V, 50-60 Hz, 1.5 A

Power Consumption

35 W nominal, 157W maximum

Dimensions (L x W x H)

17.9 x 9.6 x 6.1 inches


20.5 pounds



TCP/IP 10/100 Mbps


19.2, 38.4, 57.6 Kbaud (User selectable), 8 data bits, 1 start, 1 stop, no parity


Temperature (with sun loading)

-40 to +160 degrees F

Thermal Shock

60 degrees F/minute


0 to 100% condensing


0.8 inches/hour operating, 4 inches/hour maximum

Snow Loading

20 lb./ft²

Wind Loading

43 knots steady, 73 knots gusts

Reliability (MTBF)

>35,000 hours


15 minutes (Mean Time to Replace)

AS618-UDK-H Accessories

  • Mounting Kit
    Part No. 19471022-9
  • Power Cable
    Part No. 9291011-9-XYZ (XYZ = 50ft, 100ft, 150ft, 200ft or 250ft)
  • Power Cable Connector
    Part No. PW06P12-3S
  • Communications Cable (RS-422)
    Part No. 9291021-9-XYZ (XYZ = 50ft, 100ft, 150ft, 200ft or 250ft)
  • Communications Cable (Ethernet)
    Part No. 9291020-9-XYZ (XYZ = 50ft, 100ft, 150ft, 200ft or 250ft)
  • Communications Cable Connector
    Part No. PW06P12-10S
  • Surge Suppressor (RS-422)
    Part No. 81000143-9
  • Beam Finder
    Part No. 9301000-9
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