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Digi-Sense Calibrated Big-Digit 4-Alarm Digital Thermometer, Fahrenheit

Item# DO-90000-39

$50.00 USD/EACH
$42.50 USD/EACH

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  • Four different alarm configurations
  • Jumbo digital display is easy to read from a distance
  • Remote, heat-resistant probe
This thermometer has two temperature sensors—a built-in air sensor and an independent external probe sensor with 3 1⁄2 foot cable. The external probe can be used to monitor temperatures of liquids, air/gas, and semisolids.

Alarm configurations can be set up for four conditions: temperature above a setting, below a setting, between two settings, or outside two settings. A green or red light will blink and an audible alarm will sound when one of these conditions is detected. The alarm will sound every minute for 5 seconds until the temperature returns to a non-alarm condition or until the alarm is turned off.
What's Included:
mounting tape, probe suction cup, built-in flipopen bench stand, one AAA battery, and NIST-traceable calibration report supplied by the manufacturer.
Product Type Digital Indicator
CE Compliance Yes
Temp range (º F) -58 to 158°
Temp range (º C) -50 to 70°
Accuracy (º F) ±2°
Accuracy (º C) ±1°
Dimensions (" H) 4
Dimensions (" W) 4
Dimensions (" D) 0.625
Alarm Yes
Probe dimensions 0.68 in L x 0.2 in OD
Display Jumbo Digital
Resolution 0.1°
Qty/ea 1
Brand Digi-Sense
Power AAA Batteries


at $38.25 USD/PACKAGE of 12

In stock.

at $162.00 USD/EACH
Usually ships in 13 days.

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Questions and Answers

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Get answers from real customers and in-house experts with AnswerBox.

3 Questions | 3 Answers
Displaying questions 1-3
  • Q:

    Hi! Can your Cole-Parmer Big-Digit 4-Alert Alarm Thermometer °C probe be left in a porridge like mix at 80 degrees without damage for 1 hour (possibly more)

    Martin Warr
    Asked on 9/17/2013 by Dude from Trefeglwys

    1 answer



      The external probe can be used to measure semi-solids, such as porridge. Leaving the probe in the porridge for an hour or more will not hurt the probe. The probe is not FDA or NSF approved for direct contact with food, however.

      Answered on 9/18/2013 by Christina from Technical Support
  • Q:

    Does the sensor work underwater?
    Asked on 2/7/2011 by Anonymous

    1 answer

    • Staff Reviewer


      Yes, the tip of the probe and the cable it is attached to are submersible.

      Answered on 2/9/2011 by Jen from Technical Support
  • Q:

    1) Is this powered by 110 volts or dry batteries?
    2) We will be using this inside a dry sauna of a condominium. Which is the better source of power, electricity or battery, when used in a dry sauna?
    3) Can we choose Celsius too?
    Asked on 10/21/2010 by Kaoru from Edmonton, AB

    1 answer



      This only uses one AAA battery. Yes it reads in Celsius.

      Answered on 10/22/2010 by Mike from Tech Support
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Product Reviews


by PowerReviews
Digi-Sense Calibrated Big-Digit 4-Alarm Digital Thermometer, Fahrenheit

(based on 1 review)

Reviewed by 1 customer

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Not enough details in the description.

By Mojo

from Illinois

Verified Reviewer


  • Accurate
  • Well Calibrated
  • Works Properly


  • Alarm Needs To Be Louder
  • Alarm Too Soft
  • Wire Too Short

Best Uses

  • By Water Pipes
  • In House By Outside Wall

Comments about Digi-Sense Calibrated Big-Digit 4-Alarm Digital Thermometer, Fahrenheit:

Gave it to a family member to check temperature in basement by water pipes when weather was extremely cold, so they would know when they should take measures to put extra heat in area so water pipes wouldn't freeze.
However, the alarm is not very loud to hear and the wire is not very long to put it where it would be most helpful. So you just have to go look at the thermometer to see what the temp is.

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