... floatingdisplay/pressing to clear zero,display modification and parameter adjust function.easy to operate3) Isolated 4-20mA analog output; measure range ... , including Temperature Controller, Digital Adjustor,thermocouple (TC and RTD), Panel Meter, Sensor Meter, inductor, Power Meter, Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay ...