Infrared Ear Thermometer


  • Probe Cover for Hygiene & Easy Cleaning
  • Worldwide Smallest Probe (optional)
  • Probe Cover Ejector (optional)
  • Probe Cover Detector
  • One-second Ear Measurement
  • 9 Memories
  • Fever Indication with Beeper
  • Large LCD for easy reading
  • °C/°F Switch Mode
  • LED Backlight (optional)
  • TH839S
    Wordwide Smallest Probe
  • TH839S
    Probe Cover Ejector
  • TH839S
    Probe Cover Detector
  • TH839S
    Probe Cover
  • TH839S
    1 Second Measurement
  • TH839S
    Fever Alarm


    • Temperature measureme range:  34~42.2°C (93.2~108°F)
    • Accuracy:  ±0.2°C (0.4°F) within 35~42°C (95~107.6°F), ±0.3°C (0.5°F) for other range
    • Operating temperature range:  10~40°C (50~104°F), 15%~85% RH 
    • Storage temperature:  -20~50°C (-4~122°F), RH ≤85%
    • Transportation temperature:  Shall be less than 70°C, RH ≤95%
    • Response time (90%):  1 sec.
    • Display mode:  Oral
    • Scale selection:  °C / °F
    • Display type:  Large LCD
    • Memory:  9 sets
    • Disposable probe cover: Mold ring W/PE film cover
    • Fever alarm:  Yes
    • Backlight:  Optional
    • Battery type:  CR2032 * 1 pcs
    • Dimension:  151.36*38.5*54.29 mm
    • Weight(with battery):  69.4 g
    Note: Subject to upgrade based on purchasing agreement.

     ► Feature
    smallest probe_th8

    Worldwide Smallest Probe


    Probe Cover Detector


    Probe Cover Ejector


    1 Second Measurement

      ► Certificates
    For RADIANT® Infrared Ear Thermometer "THXX9 series". 

    Donotreuse Do not reuse : Always use a clean, undamaged and new probe cover. Be sure ear canal is clean. 

    (1) Attach the probe cover to the connection ring.
    (2) Align the center of probe cover with the center of probe.
    (3) Push the connection ring until the click sound. This means the probe cover has been firmed tightly.

    ► Probe Cover Loader (optional)

    Fill with probe covers


    Pull the loader once to load a new probe cover


    The loader will automatically bounce back. A new probe cover will be on the fixer.


    Install a new probe cover

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