One measuring device for all climate-relevant parameters (°C, % RH, m/s, hPa, CO, CO 2 , lux). Expandable with a large selection of digital probes, smart probes or numerous temperature probes. For more detailed information, see the data sheet in the download area. Menus stored in the device for fast, reliable and efficient completion of measuring tasks. For measuring the volume flow in the channel/at the outlet, degree of turbulence, cooling/heating output, indication of mould and long-term measurement. Characteristics of the unit: Automatic probe detection. No need to manually reset the parameters when changing probes; up to three probes (digital or analogue) can be connected (1x Bluetooth ® , 1x TUC, 1x mini TE) Intuitive operation with clearly structured measurement menus and graphic display with parallel display of three measured values With internal memory for up to 7500 measurement logs, data readout via USB interface, export as CSV file Greater convenience and less cable clutter thanks to cordless measuring with Bluetooth ® probes (range max. 20 m) NTC, Pt 100 and TE temperature gauges can all be connected. Measuring range of the device for NTC: -40 to +150 °C Measuring range of the device for TE: -200 to +1370 °C Measuring range of the device for Pt 100 (digital): see sensor data Note: The actual measuring range also depends on the measuring range of the respective temperature gauge Climate measuring device testo 440 basic Delivery incl. USB cable, calibration protocol and batteries. Without probe, please order separately.