SPK3 Thermometer infrared
SPK3 Thermometer infrared

SPK3 - Thermometer – Compact Type K l Infrared

Temperature on the go.


Thermometer – Compact Type K l Infrared

Temperature on the go.

Great to quickly assess a system
Folding ROD for in duct measurements
8:1 IR for register and ambient temps
Hands free in-duct measurements
Quickly calculates T1 – T2 across both ROD and IR

The SPK3 is a great tool to quickly take in-duct, ambient, and register temperatures. It’s a handy tool to assess a system and it fits conveniently in your pocket. The ROD has a sharp, narrow tip to easily insert into duct work, and the hanging hooks allows you to take hands-free measurements. The bright back lite display flips between the IR and ROD measurements so readings are always easy to view. Plus this handy tool quickly calculates T1 – T2 across both the IR and ROD modes, or a combination of the two.


  • Two AAA Batteries


  • Probe length: 94mm (~3.75”) long
  • Operating environment: 0°C to 40°C (32°F to 104°F) (<90% RH)
  • Storage environment: -10°C to 60°C (14°F to 140°F) (<70% RH)
  • Battery: 2 x AAA (installed)
  • Battery life (alkaline): 40 hrs (IR), 750 hrs (ROD)
  • Auto-off: 3 min, 15 min (T1-T2 mode)
  • IR range: -20°F to 932°F (-30°C to 500°C)
  • Best resolution: 0.5°F/0.2°C
  • Accuracy: (@73°F, <80%RH, calibrated @ 30cm)
    ±4°F(±2°C),(-20°F to 32°F);
    ±3°F(±1.5°C),(32°F to 50°F);
    ±2°F(±1°C),(50°F to 104°F);
    ±3°F(±1.5°C) or 1.5% of rdg,
  • Field of view (D:S): 8:1
  • Response time: 0.5 seconds
  • Wavelength: 8µm to 14µm
  • Emissivity: E=0.95
  • Rod range: 40°F to 257°F (-40°C to 125°C)
  • Best resolution: 0.1°F/0.1°C
  • Accuracy: (@73°F, <80%RH)
    ±1°F(±0.5°C), (32°F to 122°F);
    ±2°F(±1.0°C), (<32°F, >122°F)
  • Response time: 20 seconds
SPK3 Thermometer infrared

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