Counter, Number of Digits 6, Function Type Pulse, Maximum Counts per Minute 600, Inlet Size 1/8 in, Air Inlet Type NPT, Maximum Operating Pressure 120 psi, Minimum Operating Pressure 0 psi, Maximum Signal Duration 0.05 sec, Body Material Carbon Steel, Maximum Operating Temperature 160 Degrees F, System of Measurement Inch, Counting Direction Up, Overall Length 4 1/2 in