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HS702 and HS703 Single Stripe Laser Sensors are portable, fast, and accurate sensors. These are our most versatile and popular sensors and are perfect for high volume applications.

The HS702 with Blue Laser Technology is the smallest and most rugged of the LaserGauge® DSP sensors. It is perfect for high volume applications, such as gap/flush on automobiles, aircraft, or for inspecting welds where portability is required. 

The HS703 is identical to the HS702 in capability, but comes with a larger 3.5” display that provides easier-to-view operator feedback and instruction.


Same sensor capabilities.
Choose your display size and USB functionality.

HS702 Single Stripe Laser Sensor

  • Field of View Options
    • 1.2" (30mm)
    • 1.9" (48mm)
    • 2.5" (63mm)
  • Display Size: 2.5” Vertical
  • Barcode Scanner: External

HS703 Single Stripe Laser Sensor

  • Field of View Options
    • 1.2" (30mm)
    • 1.9" (48mm)
    • 2.5" (63mm)
  • Display Size: 3.5” Horizontal
  • Barcode Scanner: Internal

Features common to both sensors include:

  • Red or blue single-stripe laser
  • 1270 scan points over sensor field-of-view
  • 1 GHz DSP processor – measurements are completed in as little as ½ second.
  • Totally self-contained – no need for external PC or cables for operation
  • Automatic gain optimization – scanning on wide variety of colors/finishes

Applications cross-reference

Application Standoff Laser Color
Automotive Gap/Flush – metal or painted body panels Standard ‘V’ Red or Blue
Automotive Gap/Flush – headlamps, tail lamps, windows, chrome Standard ‘V’ Blue
Aerospace Gap/Step/Angle – composite or metal Straddle Blue
Welds Straddle Red or Blue
Pitting/Corrosion/Wear/Fretting Straddle Blue
Embossing depth/stamping depth Straddle Red or Blue
Edge Break/Chamfer Corner Red or Blue
Radius, Metal Stamping Corner Red or Blue
NOTE: The Standard ‘V’ standoff comes standard with DSP sensors. Straddle and Corner Standoffs are separate accessories. See accessories.


Field of View Options

Both the HS702 and HS703 come in 3 different fields-of-view (or scan width).
FOV Option Field-of-View Resolution Depth-of-Focus Depth Accuracy
-F20 1.2” (30mm) 0.0010” (24µm) ±0.3” (±7.5mm) ± 0.0008” (20µm)
-F30 1.9” (48mm) 0.0015” (38µm) ±0.5” (±12mm) ± 0.0015” (38µm)
-F44 2.5” (63mm) 0.0020” (51µm) ±0.6” (±16mm) ± 0.0020” (51 µm)

Scanning Technology

HS702 and HS703 Sensor models are available with Single Stripe Scanning technology. Learn more about how LaserGauge® scanning works.

Choosing between Red or Blue Laser Technology

Selection of Red vs Blue laser technology comes down to a question of the surface material being measured. Red laser technology is used on solid surfaces, such as painted or unpainted, non-shiny surfaces, and is less expensive. Blue laser technology works accurately on all kinds of surfaces including painted, unpainted, translucent, transparent, some plastic, composite, and shiny.

Laser Safety Warning Labels


Virtual Gauges that come with the HS702 and HS703

"Virtual Gauges" are the mathematical algorithms used to process a scan and extract measurements from it. The following Standard Virtual Gauges are provided as a part of the preloaded configuration for both the HS702 and HS703 and are used mostly for Gap/Flush and Sheet Metal applications in the automotive industry.

  • Step/Angle
  • Fasteners
  • Pits, dents, gouges
  • Scratches
  • Butt Weld

Custom Virtual Gauges can be developed/created according to customer requirements and measurement methodology upon request.

Learn more about Standard and Custom Virtual Gauges.

Measurement output includes numerical and graphical displays as well as auditory feedback

Display Output

Numerical and graphical results are displayed and can indicate in- or out-of-spec conditions. Operation feedback is provided to assist the operator in obtaining the best measurements.

Auditory Output

A variable volume speaker will sound different tones to indicate in- or out-of-spec measurements, errors or misreads, and low battery.

Data Output

All processed scans and the extracted measurements are automatically saved to the sensor memory for later retrieval. When the sensor is plugged into a PC it will map the data memory as a drive, much like a USB memory stick so that retrieving files is fast and easy.


HS702 & HS703 Specifications

Size 2.3" (w) x 3.8" (h) x 10.1" (l) 3.6" (w) x 3.8" (h) x 10.1" (l)
Weight 19 oz. (22 oz. with battery) 26 oz. (29 oz. with battery)
Display 2.4” Color Display 3.5” Color Display
Touchscreen No Yes
Scan Type
Single Stripe Single Stripe
Laser Color Red or Blue Red or Blue

Specifications Common to Both Models

  • User Input
    2 sets of 3 LED’s, 5-Way Joystick and 2 Buttons
  • Communications
    Wireless - 2.4GHz ZigBee module with ZigBee USB Stick for computer Cable - USB 2.0A to Mini 5-Pin USB, 6’
  • Processor
    1GHz Speed
  • Memory
    8GB of data/scans/routines
  • Battery

    High capacity, rechargeable lithium-ion Inspired Energy series NB2037

  • Shock Protection
    Cast urethane housing
  • Environment
    0° - 70° C
  • PC Software Interface
    LGTools, Windows™ compatible


HS702 and HS703 Single Stripe Sensors come standard with the following:

  • Sensor (plus 2 sets of standoffs)
  • 2 Lithium Ion batteries with a constant-use life of 4+ hours
  • Zigbee Wireless USB Dongle
  • Battery charger
  • Accessory software (LGTools and LGCommander) link to software pages
  • 6’ Cable – USB 2.0A to Mini 5-Pin USB
  • Hard-shell carrying case
  • 1-year warranty

Optional Accessories

  • Barcode scanner
  • Charging station
  • Holster
  • Standoffs

Included Software

  • LGTools – this application sends, retrieves, and formats data from a computer to the DSP Sensor via USB cable or ZigBee.