... : AC 0-5A, 4-20mA, 0-10V, 0-100mV, Rt, Pt100, Tc, etc. input combination of AC and DC. eg, AV600 ... ) Output: up to 4 alarm output, UPPER/LOW or betweens can be setted freely. isolate analoge output:0-10mA/4-20mA, configurable by software.4) ... thousands of different models of products, including Temperature Controller, Digital Adjustor,thermocouple (TC and RTD), Panel Meter, Sensor Meter, inductor, ...