... indicator 2. CE,CQC,ISO9001 3. Measure, display,alarm 4. 4loops of alarms 5. Various dimensions selectable AI-501 Intelligent ... 0~100mv,0~20mv, 0~60mVLinear Current: 0~20mA, 4~20mALinear resistor: 0~80ohm, 0~400ohm-9990~3000 defined by userInput ... 5WElectromagnetic compatibility (EMC) : ±4KV/5KHz according to IEC61000-4-4;4KV according to IEC61000-4-5.Operating Ambient : temperature -10~60°C; humidity ...