Differential Pressure
Range: ±15 in. wc (3735 Pa); 150 in. wc maximum safe operating pressure
Accuracy: 2% of reading; ±0.001 in. wc (0.025 mm wc) from 0.050 to 15 in. wc
Resolution: 0.001 Pa

Absolute Pressure
Range: 15 to 40 in. Hg (356 to 1016 mm Hg)
Accuracy: 2% of reading
Resolution: 0.001 in. Hg (1 mm Hg)

Air Velocity*
Range: 25 to 8,000 ft/min (0.13 to 41 m/s) Pitot Probe
25 to 5,000 ft/min (0.13 to 25 m/s) Air Flow Probe
25 to 2,500 ft/min (0.13 to 13 m/s) Velocity Matrix
Accuracy: 3% of reading; ±7 ft/min (0.04 m/s)** All Probes
Resolution: 0.1 ft/min (0.1 m/s)

Temperature Probe*
Range: -40 to 121 °C probe dependent
Accuracy: ±0.3 °C from 0 to 71°C; typically ±0.6 °C from -40 to 0 °C and from 71 to 121 °C
Resolution: 0.1 °C

Relative Humidity Probe*
Range: 0 to 95% RH
Accuracy: 3% RH
Resolution: 0.1% RH
Averaging Capability Up to 1,000 values each of measured parameter Sampling Interval Continuous or user selectable (10 to 600 s)
Response Time: 2 to 8 s

Size
External Dimensions: 18.8 cm × 11.4 cm × 5.8 cm
Weight with Batteries: 0.5 kg

Instrument Operating
Range: 4.4 to 60 °C
Meter Display 6 digit LCD, 0.75 in. character height, multi-line sectored high contrast backlit
Power: 4 AA-size batteries rechargeable NiMH (included) or alkaline, AC adaptor Battery Life: 12 hr
Battery Recharge: Time 1 hr (external charger), 5 hr (internal charger)