TPI 608 Low Cost Single Input Manometer Single input with +/-60” H2O range Four units of measure (inH2O, mbar, KPa, PSI and mmH20) Display: Display – 4 digit with backlight Auto Off: Conserve battery power Built in hanging hook and back magnets. The 608 digital manometer measures pressure or vacuum in four units of measure. Please follow manufacturers recommendations on all equipment being serviced with the 608.