HVAC Manometer, Digital Manometer Handheld Dual-Port Air Pressure Meter with 12 Selectable Units, ±20.68 KPa, Large LCD Display with Backlight, Pro Air Gas Pressure Tester for Blowers Boilers

Product description <img alt="manometer" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/00d25c2e-4a88-4345-a8a7-185928992352.__CR0,0,970,600_PT0_SX970_V1___.jpg"/> <img alt="manometer" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/cd3a1d44-f2a6-42fa-8bf5-233ac2e06ea2.__CR0,0,970,600_PT0_SX970_V1___.png"/> <img alt="manometer" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/bc018df7-48a1-43dc-bb76-682f00f6749d.__CR0,0,970,600_PT0_SX970_V1___.jpg"/> <img alt="11" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/72998ea9-a75b-49cf-903d-1f4e5963aae2.__CR0,0,970,600_PT0_SX970_V1___.jpg"/> Specifications: Over Range Display Indicator: ErrO Repeatability: ± 0.2% (Max ± 0.5% FSO) Linearity/Hysteresis: ± 0.29%FSO (25℃) Measurement Rate: 0.5 seconds Accuracy: ± 0.3% FSO (at 25℃)± 0.3% FSO (at 25℃) Under Range Display Indicator Err1 Data Storage: 100 groups Operating Conditions: 0~50℃ (32~122℉ ) Power Supply: 9V Battery (Included) Automatic Shut-down: After about 15 minutes without any operation