... . Input channel, 1,2,3,4,6,8 channel for option.2. Channel Isolation between each channel,no interference3. ... range:10 mm/h~990mm/h10. Alarm, 6 relay output for option Relay contact capacity, 24VDC, 3A; 220VAC, 3A 11 ... 15. Trend record accuracy, 0.2% 16. Digital record accuracy, 0.2%FS 17. Input imedance> 10M (Note, 250, when current ... . Panel size, 144×144×200 mm 22. Size for holing, 138+1 × 138+1 mm. ..