Feature

Benefit

Stainless steel and brass wetted materials

Corrosion resistant for long trouble free life

Separate differential and gauge sensors

More accurate pressure measurements (1% of reading)

Automatic zeroing

Ensures accurate, repeatable readings without user interaction

Integral flow calculations (HM680)

Saves time, no need to use circular slide rules

Two-position, four-way valve

Easier operation, fewer manual connections and reconnections

1% accuracy

More accurate readings

Rechargeable NiMH batteries

Long life, more charging cycles than NiCad batteries

Internal and External battery charger

Charge batteries in the meter or externally

Integral flow measurement (HM680)

Virtually eliminate the need for manual slide rule calculations, saves time

Advanced calculations (HM680)

One instrument does it all for you, eliminate the need for separate calculators, slide rules, etc.

Large easy-to-read display

Simultaneously read low side, high side, differential pressure and temperature without switching screens- saves time