The process displays testo 54 fit perfectly into the front of switchboxes into a wall-mounted housing (accessory). For easy wire connection, a removable terminal strip is integrated in testo 54-1/-2/-3/-7/-8.

The process displays testo 54, depending on the type, serve to display measurement values, for switching, alarming, MIN./MAX. storage, totaliser function, for providing measurement transmitters with an auxiliary power output (24 V DC) and for online monitoring (RS485). Resistance thermometers (pt100 and others)and thermocouples (Types K, J, T, S and others) can be directly connected. Further types display analog signals (4 to 20 mA or 0 to 10 VDC and others). The input type is simply selected in the easy-to-follow menu, and the value is instantly displayed in the easily legible display.