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Description

The ADC Adtemp 421 Tympanic Infrared Thermometer (#421) features a probe cover free design that makes this thermometer ideal for home care. This infrared thermometer measures core temperature instantly from the ear reliably and accurately. The ADC Adtemp 421 Tympanic Infrared Thermometer comes complete with lithium battery, storage/travel case, and operating instructions.

Warranty: 2 Years.

Note: Every ADC Adtemp stick thermometer meets the accuracy requirements for intermittent thermometers under ASTM E1112.

Features

ADC Adtemp 421 Tympanic Infrared Thermometer Features

  • Measures core temperature instantly from the ear reliably and accurately.
  • Range 89.6 degrees F - 108 degrees F +/- .4 degrees F or 32 degrees C - 42.2 degrees C +/- .2 degrees C depending on scale selection.
  • Probe cover FREE design is less costly and more convenient to use.
  • Large 6 mm illuminated display is easy to read.
  • Compact (5" Long, 1.9 oz.) ergonomic design fits comfortably in operator's hand and patient's ear.
  • Audible fever alarm at 99.5 degrees F (37.5 degrees C).
  • 12 reading memory.
  • Meets ASTM E1965-98 standards for accuracy.

Specifications

ADC Adtemp 421 Tympanic Infrared Thermometer Specifications

  • Type: Tympanic.
  • Technology: Peak-hold.
  • Scale: Dual (degrees F/ degrees C).
  • Range degrees F: 32.0 - 212.0.
  • Range degrees C: 0 degrees C - 100.0.
  • Accuracy degrees F: 0.4.
  • Accuracy degrees C: 0.2.
  • Response Time: 1 sec.
  • Beeper: Yes.
  • Auto-off: Yes.
  • Memory: 12x.
  • Flex Probe: No.
  • Needs Sheaths: No.
  • Battery Type: CR2032.
  • Battery Life: 1,000 uses.
  • Latex Content: Latex-free.
  • Dimensions: 6" x 1.2" x 1.6" (153 mm x 31 mm x 40 mm).
  • Weight: 1.87 oz (53 g).
  • Display: LCD.
  • Operating Environment: 41 degrees F - 104 degrees F (5 degrees C - 40 degrees C).
  • Storage Environment: -13 degrees F - 131 degrees F (-25 degrees C - 55 degrees C).

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Customer Reviews

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H
Home u.(.p. (Michigan, United States)
Maybe I just don't know how to use it?

This thing has never yielded a reading higher than about 94F, no matter whose ear it is in, no matter how it's pointed and situated in the ear canal. I did read the instructions and tried to follow them, as well as attempting to educate myself using instructional videos, nothing I tried worked and it always reads between 92F-94F. Maybe it needs better instructions, maybe I "got a bad one," it doesn't really matter because I can't use it.

Hi there, we apologize for the inconvenience you have experienced with our thermometer. It seems like you have taken the necessary steps to learn how to use it correctly, and we understand your frustration. Please reach out to our customer service team and we would be happy to assist you further. We have also included a link to ADC warranty process here: https://www.adctoday.com/support/warranty-service. We value your feedback and will take it into consideration for future improvements. Thank you for bringing this to our attention.