Input：  8×Analogue inputs (Current)
Output:  1×Digital output(RS-232/485)
Accuracy：  @ +25℃ (table 1)
Input detuning：  ±0.1 uA/℃
Temperature drift：  ±15 ppm/℃ (±30 ppm/℃, max)
Input resistance：  < 250 Ω (4-20mA/0-20mA input current)      
Bandwidth：  -3 dB 10 Hz
Conversion rate：  10 Sps                                                                  Dimensions:145×82×42mm
Common mode restraint (CMR)： 120 dB（1kΩ Source Imbalance @ 50/60 Hz）
Norm mode restraint (NMR)： 60 dB （1kΩ Source Imbalance @ 50/60 Hz）
Input terminal protection： over-voltage protection and over-current protection
Communication: support standard Modbus RTU protocol and character communication protocol,
RS-485 or RS232 interface. 
Baud rate（300 bps、600 bps、1200 bps、2400 bps、4800 bps、9600 bps、19200 bps、
38400bps）software selection is available
Location（0x00~0xFF）software selection is available
Communication response time：100 ms max
Power supply：  +8 ~ 50 VDC wide range power supply, internal anti-reverse and overvoltage protection circuit
Power consumption:    less than 1WIsolation voltage: input channel 1 / input channel 2 / ... / input channel 8 / output / auxiliary power supply             between every two group: 3KVDC, 1 minute, leakage current 1mA.Shock voltage: 3KVAC, 1.2/50us (peak)
Dimensions: 145 mm x 82 mm x 42mm