• Provides for inputs for two temperature probes
• Large backlit display for use in low light areas
• Operates on four alkaline or NiMH rechargeable batteries
• Reads in H₂O, ft. H₂O, psi, in.Hg, mmHg, mH₂O, kPa or bar
• Differential pressure range ±300 psi (±2068 kPa)
• Gauge pressure range -20 to 300 psi (-138 to 2068 kPa)
• Performs on-board universal flow and btu/hr calculations
• Displays volumetric flow when a Cv (Kv) factor is programmed
• Allows up to 100 Cv (Kv) factors to be entered
• Calculates brake power, heat flow, Cv (Kv) factors, and impeller sizing
• Stores up to 4,000 data points for recall or downloading via USB interface
• Robust, splash-proof case
• Meter weight with batteries is 2.65 lbs (1.20 kg)

Pressure
Differential Range -300 to 300 psi (-2,068 to 2,068 kPa)
Gauge Range -20 to 300 psi (-138 to 2,068 kPa)
(-40 to 610 in. Hg)
Resolution (best) 0.001 psi (0.01 kPa)
(0.01 in. Hg)
Accuracy1 ±1% of reading plus .072 psi
(0.5 kPa) (0.15 in. Hg)
Units psi, in. H2O, ft H2O, kPa, mm Hg, in. Hg,
m H2O, bar
Pressure Connection ¼” 37• flare fitting, Male

Temperature
Operating (electronics) 40 to 113°F (5 to 45°C)
Storage -4 to 140°F (-20 to 60°C)
Liquid Media 32 to 180°F (0 to 82°C)
Probe (immersion) -40 to 250°F (-40 to 121 °C)
Resolution 0.1°F (0.1°C)
Accuracy ±0.5% of reading +1.2°F (0.7 °C)
Units °F, °C

Flow 
Range2 -22,712 to 22,271 m3/h, -99,999 to
99,999 USGPM (-6,309 to 6,309 l/s)
Resolution (best) 0.0001 USGPM (0.00001 l/s)
Accuracy per pressure accuracy + valve
deviation
Units USGPM, UKGPM, m3/h, l/s, l/m

Time Constant
User selectable (1, 5, 10, 20, and 30 seconds)

Statistics 
min, max, average, sum up to 4,000 readings

Data Storage 
4,000 combined readings, 100 Test IDs

Logging Interval 
User selectable (1 to 3,600 seconds)

External Meter Dimensions
11.1 in. × 4.7 in. × 3.5 in. (28.2 cm × 11.9 cm × 8.8 cm)

Meter Weight with Batteries
2.65 lbs (1.20 kg)

Power Requirements
Four AA-size cells, or AC adapter