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Product Description

The Labmart HSETIN HT-819 is a high-temperature, non-contact infrared thermometer with dual laser targeting for accurate aiming and temperature measurement. It measures temperatures from -50°C to 1050°C, features adjustable emissivity, backlit LCD display, automatic data hold and MAX/MIN/DIF/AVG functions, making it suitable for industrial and laboratory temperature inspection.

Product Overview

The HSETIN HT-819 Dual Laser IR Thermometer is designed for fast, non-contact measurement of surface temperatures in industrial, maintenance and laboratory environments.

Its dual laser system helps define the measurement area and merges toward the target at the optimal measuring distance. The instrument supports adjustable emissivity from 0.10 to 1.00, allowing measurements across different surface materials.

With a high-temperature range extending to 1050°C, 20-point memory, backlit LCD and multiple temperature-analysis functions, the HT-819 is suitable for monitoring furnaces, machinery, electrical equipment, heating systems and other hot surfaces.

Key Features and Benefits

  • -50°C to 1050°C infrared temperature range
  • Dual laser targeting
  • Non-contact temperature measurement
  • 0.1°C/°F resolution
  • Adjustable emissivity 0.10–1.00
  • Optical resolution approximately 12:1
  • Response time below 1 second
  • Backlit LCD display
  • Automatic data hold
  • °C/°F selection
  • Laser ON/OFF function
  • Automatic power-off
  • Trigger lock
  • MAX, MIN, DIF and AVG functions
  • High and low temperature alarm settings
  • 20-point memory
  • Compact handheld design

4. Technical Specifications

Specification Details
Product Type High-Temperature Infrared Thermometer
Model HT-819
Brand Labmart
Original Series HSETIN HT-819
Measurement Type Non-Contact Infrared
Temperature Range -50°C to 1050°C
Temperature Range -58°F to 1922°F
Resolution 0.1°C/°F below 1000°C; 1°C above 1000°C
Basic Accuracy ±2% or ±2°C / ±4°F
Detailed Accuracy Varies by temperature range; see note below
Optical Resolution Approximately 12:1
Emissivity Adjustable 0.10–1.00
Spectral Response 8–14 µm
Laser Targeting Dual Laser
Laser Class Class 2, <1 mW
Laser Wavelength Approximately 630–670 nm
Response Time <1 second
Display Backlit LCD
Memory 20-point memory
Measurement Functions MAX, MIN, DIF, AVG
Data Hold Automatic
Temperature Units °C / °F
High/Low Alarm Yes
Trigger Lock Yes
Laser ON/OFF Yes
Auto Power Off Yes
Operating Temperature 0°C to 50°C
Operating Humidity 10–90% RH
Storage Temperature -20°C to 60°C
Storage Humidity <80% RH
Power Supply 1 × 9V battery
Dimensions Approximately 180 × 107 × 40 mm
Weight Approximately 150 g
Mounting Handheld
Housing ABS
Feature Contactless
Country of Origin India

Accuracy Note

Detailed technical documentation provides temperature-dependent accuracy specifications. These include:

  • -50°C to -23°C: ±2.5°C
  • -23°C to -2°C: ±4°C
  • -2°C to 94°C: ±(1.0% of reading + 1°C)
  • 94°C to 204°C: ±(1.5% of reading + 1°C)
  • 204°C to 426°C: ±(3% of reading + 1°C)
  • 426°C to 1050°C: ±7°C typical

Accuracy specifications are based on the stated ambient-temperature conditions.

5. Applications

The HT-819 is suitable for:

  • Furnace temperature inspection
  • Industrial machinery monitoring
  • Electrical equipment inspection
  • Motors and bearings
  • Heating systems
  • Boilers and hot pipes
  • HVAC maintenance
  • Manufacturing processes
  • Metal-processing applications
  • Laboratory temperature measurement
  • Preventive maintenance
  • Troubleshooting of hot equipment
  • Surface temperature inspection

6. Suitable For

  • Manufacturing industries
  • Maintenance departments
  • Electrical technicians
  • Mechanical maintenance teams
  • Laboratories
  • Engineering workshops
  • HVAC technicians
  • Foundries
  • Metal-processing industries
  • Industrial quality-control teams
  • Research and development facilities

7. Product Benefits

  • 1050°C maximum temperature measurement
  • Safe measurement without touching hot surfaces
  • Dual laser makes target positioning easier
  • Adjustable emissivity for different surfaces
  • Fast response below 1 second
  • 12:1 optical ratio
  • Backlit display for improved visibility
  • Multiple statistical temperature functions
  • High/low temperature alarms
  • 20-point memory
  • Compact and lightweight
  • Trigger-lock function for continuous measurement
  • Suitable for industrial maintenance and inspection

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