testo 440 is a climate measuring instrument that can measure temperature, humidity, wind speed, wind direction, air quality, etc.
This document is the instruction manual for the testo 440 climate measuring instrument. It provides comprehensive guidance on safety, disposal, and the description of the instrument, including its overview, display, power supply, and compatible probes. The manual details the commissioning, switching on/off, basic settings, and management of measurement data.
| Operating temperature | -20 to +50 °C |
|---|---|
| Storage temperature | -20 to +50 °C |
| Bluetooth range (latest generation probes) | 20 m free field |
| Bluetooth range (Smart Probes) | 3 m free field |
| Battery type | 3 x AA batteries |
| Battery life | 12 hours |
| Weight | 250 g |
| Dimensions | 154 x 65 x 32 mm |
The operating temperature range is from -20 to +50 °C.
The instrument requires 3 x AA batteries.
The battery life is 12 hours.
The Bluetooth range is 20 meters in a free field.