LT800 Infrared Thermometer with Laser Sight (discontinued)

Discontinued – see the LTX10 for the new improved model.

Quick Links


  • Check rotor/drum temperature for sticking caliper pistons
  • Detect overheating electrical components, connectors, and wiring harnesses
  • Pinpoint radiator core restrictions and check coolant sensor temperature
  • Diagnose cooling systems
  • Diagnose catalytic converters
  • Quickly check temperatures for misfiring sparkplugs, dead cylinders, fuel injectors, axle bearings, air duct vents, tires and asphalt for racers
  • Air conditioner/Heat exchangers
  • Body shop(Painting/baking temps)



  • Simply point to an object and reads it temperature
  • Laser sight allows to accurate target sighting
  • Measures objects temperatures without contact
  • Allows for safe measurement of temperatures of hot parts and objects from a distance
  • Quick response: 0.5 sec .



  • Display:
    • 3½ digits LCD display
    • Measure/Hold indicator
    • Laser On indicator
    • Measuring units indicator
    • Backlight
    • Low battery indicator
  • Measurement range: 0° to 800° F ( -20° to 420°C)
  • Resolution: 1°C or 1°F
  • Operating Temperature: 32°F to 122°F (0°C to 50°C)
  • Response time: 500 mS (approx.)
  • Target Size/ Field of View: 8:1 optics ratio with a 1″ min. target
  • Repeatability: ± 1of reading
  • Sensor Wavelength: 8 to 14 µm
  • Emissivity: Fixed at 0.95
  • Laser Pointer:Laser Diode, < 1mW output wavelength 630-670 nm, Class II
  • Power Source: 9-volt battery type NEDA 1604, IEC6F22 IEC 6LR61
  • Battery life: Approx. 20 hours.(w/alkaline batteries)
  • Power Saving: Automatic shut off after 7 seconds
  • Dimensions: 1.63″(W) x 2.56″(D) x 6.30″(H), 41.5mm x 65mm x 160mm
  • Weight: 4.94 oz or 140g (w/ battery)



  Download Manual (English)


Kit Manifest

  • LT800 (core unit)
  • Soft Pouch
  • 1604A (9-volt alkaline) battery
  • User’s Manual