IR-839 Dew point Infrared Thermometer with Audible/Visuable Alarm

  • Description
  • Specifications
  • Inquiry
  1. Multifunction thermometer for k-type temperature, surface temperature, ambient temperature, ambient humidity, dew point temperature and wet bulb temperature.
  2. UV light for leak detection.
  3. LED light to enable working in dark environments.
  4. Temperature difference alarm with audible and visual alarm.
  5. 13-piont laser circle targeting to ensure the measuring accuracy
  6. Big color LCD display with backlight.
  7. ℃/℉ selection
  8. MAX/MIN/Data Hold
  9. Low power indication, Auto power off.


Model IR-837 IR-838 IR-839


IR -50~1050






TK -50~1370℃/-58~2498℉

Optical Resolution


Accuracy ±1.5% or reading ±2.0℃/3.6℉(>0 ℃/32℉)  which is greater
TK:±1.5% or reading±1.5℃/2.7℉ which is greater
Emissivity Adjustable 0.1~1.0
Temp. Resolution IR:0.1
TK: 0.1(less than1000),1.0(more than1000)
Ambient Temp. range -20~60℃/-4~140℉
Accuracy 0.1℃/0.1℉
Environmental Humidity Range 0~100%RH
Accuracy 35~75%RH;±3.0%RH, other ±5.0%RH
Resolution 1%RH
Dew point Temp. -20~60℃/-4~140℉; ±1.5℃/2.7℉(25℃/77℉,40~80%RH)
Wet bulb Temp. -20~60℃/-4~140℉; ±1.5℃/2.7℉(25℃/77℉,40~80%RH)



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