Universal Bluetooth handle for connecting Testo 400 probe heads

You can easily expand your portfolio of probes by connecting this universal Bluetooth handle to different probe heads. The extendable telescope for air velocity probes can also easily be connected to the handle and the readings are then transmitted to your Testo 400 measuring instrument (sold separately) via Bluetooth, up to 65 ft. You can operate the measuring instrument by pressing the button on the handle – for example, to store individual readings. Please note that you need our adapter (order number 0554 2160) to connect probe heads for air velocity measurement or the extendable telescope for air velocity measurements to the handle.