HD2124.1 and HD2124.2 are two inputs portable instruments with a large LCD display.
They perform measurement of absolute, relative, differential pressure and temperature. In order to measure the pressure you use the electronic module PP471 that works as an interface between the instrument and Delta Ohm probes series TP704 and TP705. Temperature is measured by means of Pt100 with SICRAM module or direct 4 wires Pt100 probes for immersion, penetration, contact or air.