2Packs AP-856A CFM Anemometer Wind Speed Meter and AP-189B Digital Manometer, Air Flow HVAC Pressure Gauge with Backlit Display for Ductwork

AOPUTTRIVER CFM Anemometer AP-856A Air Flow Meter with HVAC Manometer Gas Pressure Meter AP-189B (2Packs)CFM Anemometer AP-856ASpecifications:Wind Velocity Range: 0.001~100 mphWind Flow Range: 0-999900m3/min or 0-999900 ft3/minWind Speed units: m/s, km/h, ft/min, knots, mphTemp Units Optional: ℃/℉Wind Temp Range: 14℉-113℉/-10℃~45℃Features:Data HoldData LoggingBack Light DisplayWind Chill IndicatorLow Battery IndicatorUSB Connect to PCComes with Protective Case0.001 Wind Speed ResolutionDisplay airflow CFM value automaticallyRead Max/Min/Average/ Current wind speedDigital Manometer Air Pressure Tester AP-189BSpecifications:Measure Range: ±2.0psiAccuracy: ±0.3%FSO(25℃)Measurement rate: 0.5sLimit maximum pressure:30PsiAutomatic Shut Down: 25mins11 Measure Units: mmHg, inHg, ftH₂O, cmH₂O, inH₂O, KPa, mbar, bar, psi, Kgcm², ozin²MoreFeatures:Low Power IndicatorAutomatic Power OFFData Storage0.5 Second Quick ResponseFahrenheit & Celsius degree Switchable

• 【High Precision Anemometer】 Wind Speed Range: 0.001~100 mph (Accuracy: +/- 3%+0.2 rdg),0.001-45m/s (Accuracy: +/- 3%+0.1 rdg); Temp Range:32-113℉;Resolution: 0.001 mph.Measure wind speed in MAX/MIN/Current.Display in 5 units: m/s, km/h, ft/min, knots, mph
• 【CFM Meter】Wind flow range: CFM 0-999900 ft3/min, Resolution: 001-100, Wind flow area 0.001-9999 ft2,Wind Flow Calculate Formula: Flow =velocity *(Free Area);A good and protable CFM meter for you to measure HVAC,Air Blower and Air Velocity
• 【High Accuracy Manometer】As a professional manometer with measurement range: +/-2.000psi; Accuracy: +/-0.3%FSO (at 25°C) ; Repeatability: +/-0.25%; Linearity/Hysteresis+/-0.1%FSO; Limit maximum pressure:30Psi; 11 Selectable Units
• 【High Accuracy Manometer】As a professional manometer with measurement range: +/-2.000psi; Accuracy: +/-0.3%FSO (at 25°C) ; Repeatability: +/-0.25%; Linearity/Hysteresis+/-0.1%FSO; Limit maximum pressure:30Psi; 11 Selectable Units
• 【What You Get】AOPUTTRIVER hvac tools combo package includes Industrial CFM anemometer AP-856A and manometer AP-189B gas pressure tester. Comes with 365days qualtiy technical support