... indicate when ordering;3, 4/5/6 digit display, with demical point switched automatically; Opical isolation for input and ... output,high anti-interference.4, Output: up to 3 alarm output with various output modes selectable; high value, low value, ... Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, Solid State Relay, Proximity Sensor, Pressure sensor, load cell ...