... Up to 4 alarm outputs;Analog output:0-10mA/4-20mA. DS8 series Digital meter for voltage/current(AC 0-5V,4-20mA,0-10V, ... 4-20mA, configurable by software.4) Power supply: +12V or 24V/30mA, etc.5) Communication: RS232 or RS485 Modbus RTU protocol, connectable with ... flowmeter, Timer, Timer Relay, Solid State Relay, Proximity Sensor, Pressure sensor, load cell sensor, KNE KSC box, Rotary Encoder and ...