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Testo 440 - humidity kit

Contact Instrument Solutions

Overview

The Testo 440 is a practical kit for the measurement of temperature and humidity in a wide range of applications such as indoor air quality studies and in HVAC ductwork systems. The 440 handset is a multifunction measuring instrument which can be used with a number of different optional indoor air quality probes, and the wireless Bluetooth probe can be used to accurately measure temperature & humidity over the range of - 20 to + 70 °C / 5 to 90 % rh, as well as the calculation of dew point, wet bulb temperature and absolute humidity.

Features

  • A compact hand-held measuring instrument with intuitive measurement menus and a wide selection of air velocity and IAQ probes (optional accesories)
  • Clearly structured measurement menus.
  • Easy storage and evaluation of measurement data. Measurement data memory for up to 7500 measurement protocols, which can be read via a USB port and further processed as a CSV file on the computer (e.g. with Excel)
  • Practical magnets for easy attachment of the measuring instrument to metal surfaces (e.g. ducts)
  • Automatic detection of probes, e.g. humidity probe
  • Large, backlit colour display

Scope of standard supply

Testo 440 air velocity and IAQ measuring instrument, 3 x AA batteries, USB cable and manufacturers calibration protocol
Testo Bluetooth temperature and humidity probe, 4 x AA batteries and calibration protocol (0636 9731)
Basic case for testo 440 and 1 humidity probe

Technical

Probe part No. 0636 9731

Humidity sensor type Capacitive

Humidity measuring range 0 to 100 % rh

Humidity accuracy ± 2 % rh (5 to 90 % rh)

Humidity resolution 0.1 % rh

Temperature sensor type NTC

Temperature measuring range - 20 to + 70 °C

Temperature accuracy ± 0.5 °C

Temperature resolution 0.1 °C

Support documents

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Download
Testo 440 product range BSRIA data sheet.pdf Testo 440 product range BSRIA data sheet
Category
Technical document
File type
Adobe Acrobat
Download (4 MB)
Download
Testo air velocity and IAQ probe user manual.pdf Testo air velocity and IAQ probe user manual
Category
Technical document
File type
Adobe Acrobat
Download (348 KB)
Download
Testo 440 user manual.pdf Testo 440 user manual
Category
Technical document
File type
Adobe Acrobat
Download (3 MB)
Download
Testo air velocity and IAQ Bluetooth probe user manual.pdf Testo air velocity and IAQ Bluetooth probe user manual
Category
Technical document
File type
Adobe Acrobat
Download (876 KB)

Common customer questions & answers

QQuestion When using a wireless Bluetooth probe how far from away from the handset will the probe register a signal?
AAnswer Typically the probe will transmit distances up to 10 m (line of sight).
QQuestion Can you connect two wireless Bluetooth probes to a 440 handset?
AAnswer Unfortunately no. The handset is designed to work with a single wireless Bluetooth probe, a single wired probe and an additional Type K mini plug style thermocouple can additionally be fitted as well.