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445815 CAL DU

Humidity Meter, Calibrated w/D & U, 10% to 99% Relative Humidity, 4 %, 1 °C, 109 mm, 99 mm, 20 mm


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Manufacturer Part No:
445815 CAL DU
Newark Part No.:
Technical Datasheet:
445815 CAL DU   Datasheet
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Product Information

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10% to 99% Relative Humidity







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Technical Documents (1)

CAD Downloads


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Product Overview

The 445815 CAL DU from Extech Instruments is hygro-thermometer humidity alert with dew point. This humidity meter with alarm and remote probe features a large triple display of relative humidity, temperature and dew point. It has a built-in stand for sitting on a desk but can also be mounted to a wall with included bracket. A visual and audible alarm warns when humidity level goes above or below adjustable set point. Meter also stores maximum and minimum readings. Remote probe extends 18inch for measuring behind walls. It is ideal for use in humid areas where mould can become a problem. Humidity alarms warn when the % RH exceeds a pre-set HI or LO limit. The remote probe conveniently mounts on the meter or extends for measurements in ducts or remote locations. It also features humidity and temperature adjustments. The unit can be wall mounted or placed on a flat surface using the fold-out stand. This professional meter with proper care will provide years of safe reliable service.
  • Calibrated with data and uncertainties hygro thermometer
  • Large, easy to read triple LCD displays, probe clips onto meter or extends on 18" (457mm) cable
  • Programmable alarm warns of high humidity conditions
  • %RH audible and visual alarms with adjustable set points, alert when humidity exceeds set limit
  • Displays dew point temperature, max/min with reset function
  • NIST calibrateable and programmable alarms warning of high or low humidity conditions
  • 10 to 99%RH humidity (±4% RH within 25% to 85% RH and 0 to 50°C accuracy)
  • Temperature range from -10°C to 60°C (±1.0°C within -10°C to 50°C accuracy)
  • Dew point range from -36°C to 60°C (±2°C at 20°C)
  • Dimension is 109mm x 99mm x 20mm and weight is 169g


Test & Measurement


445815 hygro thermometer, Built-in stand, Wall mount bracket, Remote sensor, 2 AAA batteries.


This device is not a toy and must not reach children’s hands. It contains hazardous objects as well as small parts that children could swallow.

6 In stock

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With you in 10-15 business days

Non-Cancelable / Non Returnable

Due to market conditions delivery times are for general guidance only and may be subject to change at short notice


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