Measuring range: 0-30ppm Alarm 1: 1-15 ppm adjustable Alarm2: General alarm to control room Supply voltage: 110/220vac or 24vac Cleaning: Relay output for solenold valve sane as supply voltage Protection: IP65 Printour capacity: RS 232 adapter Overall dimensions: 210*200*100mm(L*W*D) Net weight: power module 1.2kg / measuring cell 1.1kg