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377BT Bluetooth-Enabled Combination Non-Contact IR & Contact Thermometer

The 377BT is a non-contact temperature tester with laser sighting to confirm your target. It features a built in K-type thermocouple input for optional contact temperature measurement and Bluetooth communication capability.

  • Combination non-contact IR & contact thermometer
  • Bluetooth Communication
  • Adjustable emissivity (0.3 to 0.99)
  • Record Function
  • 11.5:1 Distance to Target Ratio
  • Laser pointer
  • Temperature Ranges from -58 to 1,832 degrees Fahrenheit

Product Documentationpdf-icon1

Click below to view or download product documentation PDFs:

377BT Manual

377BT Data Sheet

£220.00 RRP exc. VAT 

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Frequently Asked Questions

  1. What does “distance to spot ratio” mean?
    The laser spot needs to be showing inside the target area. An 8:1 “distance to spot ratio” means you are measuring a 1” diameter area at a distance of 8”.
  2. How far can I measure?
    Distance is unlimited. The size of the target area sets the limit on distance for accurate measurements. Example: If the area you wish to measure is 1 foot in diameter, then you will need to be within 8 feet to record an accurate temperature.
  3. What is the smallest target I can read?
    Approximately one-half inch in diameter.
  4. What is emmisivity?
    This is a ratio of an object’s infrared emission compared to a theoretical black body considered 1. Emissivity is always less than 1. Adjustable emissivity allows your non-contact thermometer to be adjusted to the surface you are checking to make readings more accurate.

 Model 377BT Specifications
 Temperature Range  -0° to 1832°F (-18° to 1000°C)
 Accuracy @ 23°C and 0.95 emissivity  +/-2% of reading or +/-3.5°F whichever is greater
 Contact (K-Type) Range  -40° to 2192°F (-40° to 1200°C)
 Contact (K-Type) Accuracy  ± 0.5% of reading ±3°F (2°C)
 Distance to Target Ratio  11.5:1
 Response Time  1 second
 Spectral Response  7 to 14um
 Emissivity  0.3 to 0.99 adjustable
 Laser Sighting  Output <1mW, Wavelength 645-660nm, Class II Laser
 Selectable Units of Measure  Yes, °C / °F
 Display Resolution  0.1°F (°C) or 1°F (°C )
 Display Hold  Yes: Last reading held for 7 seconds
 after trigger release (70 second with BT active)
 Operating Temperature  32°F to 120°F (0°C to 50°C)
 Storage Temperature  14° to 140°F (-10 to 60°C)
 Battery Type  9V
 Bluetooth Communication  Yes - Pass Code

TPI 377 Introduction Video

377BT Applications:

• Ambient Air
• Calibrate Thermostats
• Compressor Heads
• Registers
• Temperature Differential
• Vents

• Grill & Surface Temperatures

• Cables
• Circuit Breakers
• Connections
• Machinery
• Motors & Transformers

Distance to Spot Ratios (D:S) for TPI IR (Non-contact) Thermometers:

Models 375 / 376 / 377 (11.5:1):








Models 380 / 381 / 383 / 384 (9:1):


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