... when ordering;3, 4/5/6 digit display, with demical point switched automatically; Opical isolation for input and ... anti-interference.4, Output: up to 3 alarm output with various output modes selectable; high value, low value, ... (TC and RTD), Panel Meter, Sensor Meter, inductor, Power Meter, Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, ...