Digi-Sense Digital Thermohygrometer Pen; 10 to 90% RH, 14 to 122F

Representative image only.
Digi-Sense Item # EW-37803-16
Built-in self calibration utility with optional RH calibration bottles.

$65.02USD / Each
$76.50USD / Each

$160.00USD / Each

Time to recalibrate? Click on the calibration service to view details, then order.

SPECS & DESCRIPTION

Specifications & Description

  • Min RH Range (%)10
  • Max RH Range (%)90
  • RH Accuracy±5% RH
  • RH Resolution (%)0.1%
  • Min Temperature (° F)14
  • Min Temperature (° C)-10
  • Max Temperature (° F)122
  • Max Temperature (° C)50
  • Temperature Accuracy±1.8°F (±1.0°C)
  • Temperature Resolution0.1°
  • Response Time8 seconds
  • Display TypeLCD (2-digit for RH; 3.5-digit for temperature)
  • Battery3V Battery (1)
  • DescriptionDigital Thermohygrometer Pen; 10 to 90% RH, 14 to 122F

Includes

one battery and pocket clip.

More About this Item

Pen displays relative humidity and temperature simultaneously on a large LCD. Features include a choice of readings in degF and degC, min/max recall, and data hold. Meter can be calibrated in the field using optional calibration kit 37803-17, which contains 33% and 75% humidity standards.

ACCESSORIES

REVIEWS

Q&A

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

5 Questions | 5 Answers
Displaying questions 1-5
  • Q:

    How do you calibrate the meter when the E2 error message is the only thing that comes on the screen?
    Asked on 12/20/2011 by Anonymous

    1 answer

    • STAFF EXPERT

      A:

      Item 37803-16 does nott have field calibration procedures and must be sent into a calibration lab to complete this service.

      Answered on 12/20/2011 by Rita from Customer Service
  • Q:

    may i know where i can buy the 33% salt reference bottle & 75 % salt reference bottle for extech model 445580?
    Asked on 11/7/2010 by Anonymous from philippines

    1 answer

    • STAFF EXPERT

      A:

      Part 37803-17 is the calibration kit and carrying case for this meter.

      Answered on 11/9/2010 by Mike from Tech Support
  • Q:

    How do you calibrate this?
    Asked on 10/22/2010 by Anonymous

    1 answer

    • STAFF EXPERT

      A:

      The calibration instructions are available in the manual:

      CALIBRATION
      The following verification and calibration procedures require the 33% and 75% RH
      reference bottles which are supplied with the calibration kit.
      Accuracy Verification
      Checking the 33% or 75% RH Calibration
      1. Insert meter’s sensor into the 33% or 75% salt reference bottle
      2. Place the meter and bottle inside the meter case
      3. Check the reading after 40 minutes
      4. Verify that the reading is within the accuracy specification.
      Relative Humidity Calibration (33% and 75%)
      Note: For best results, store the meter and salts in the closed case during the 40-minute
      stabilization process.
      33% Calibration
      1. Make sure the meter is OFF.
      2. Insert the meter sensor into the 33% salt reference bottle. Allow the meter to
      stabilize for 40 minutes.*
      3. While holding down the recessed CAL button (use a paper clip) press and release
      the ON/OFF button.
      4. Continue to hold the CAL button and the unit will power up and the display will flash
      once.
      5. When only the ‘F’ and ‘C’ icons appear on the display, release the CAL button. ‘C’ or
      ‘F’ (whichever was previously selected) will remain on the display.
      6. Press and hold RESET for 3 seconds ‘%MIN’ will appear when the key is released.
      7. Momentarily press CAL. ‘S’ then ‘%MAX’ will display.
      8. Turn power off. The 33% calibration is complete. Leave the meter OFF and proceed
      to the 75% Calibration below.
      75% Calibration
      1. Make sure the meter is OFF.
      2. Insert the meter sensor into the 75% salt reference bottle. Allow the meter to
      stabilize for 40 minutes.*
      3. While holding down the recessed CAL button (use a paper clip), press and release
      the ON/OFF button.
      4. Continue to hold the CAL button and the unit will power up and the display will flash
      once.
      5. When only the ‘F’ and ‘C’ icons appear on the display, release the CAL button. ‘C’ or
      ‘F’ (whichever was programmed earlier) will remain on the display.
      6. Press and hold RESET for 3 seconds. ‘%MIN’ will appear in the display after the key
      is released.
      7. Press and hold RESET again for 3 seconds. ‘% MAX’ will appear in the display after
      the key is released
      8. Ensure that ‘%MAX’ is displayed then press CAL. ‘S’ will appear briefly and the
      meter will return to normal operation.
      9. Turn power off. The 75% calibration is now complete.
      Note: If the salt at the bottom of the calibration bottles appears dry, the bottles
      should be replaced.
      * For testing purposes, the 40-minute stabilization period can be shortened.
      However, for the most accurate calibration use the 40-minute period.

      Answered on 10/25/2010 by Jack from Technical Support
  • Q:

    Does this product come calibrated?
    Asked on 1/14/2010 by Anonymous

    1 answer

    • STAFF EXPERT

      A:

      It does not come calibrated. The meter has a built in self calibration, or you can purchase the optional calibration kit 37803-17.

      If you require NIST or accredited calibration, you can order 17030-28 (NIST traceable calibration) when you place your order.

      Answered on 1/15/2010 by Zeke from Technical Support
  • Q:

    I have an E2 Code on the unit...what does this indicate
    Asked on 11/4/2009 by todd from rockville, md

    1 answer

    • STAFF EXPERT

      A:

      E2 means there is a calibration error. Please try to recalibrate your product. If you still have problems calibrating, please contact one of our Application Specialists at the number listed in our contact informtion for help troubleshooting.

      Answered on 11/6/2009 by Jaime from Technical Support
Displaying questions 1-5

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