Features 1、WIDE APPLICATION: Widely used to measure fan and blower pressure, filter resistance, wind speed, furnace pressure, orifice differential pressure, etc. 2、FOR COMBUSTION AND HEALTHCARE: Also used in the air gas ratio control and automatic valve control in the combustion process systems, and blood pressure and respiratory pressure monitoring in healthcare devices 3、LCD DISPLAY WITH BACKLIT: Come with large LCD backlit display, the readings are clearly visible, and there is a low battery prompt function, very practical 4、VARIOUS FUNCTIONS: With difference mode and record mode, as well as zero adjustment and data correction function, simple to use 5、WITH PRACTICAL ACCESSORIES: Typical response time is 0.5 seconds, with complete accessories of air tube, driver CD, USB cable, etc., which is convenient for you to install and use Specification Item Type: Pressure Manometer Model: GM510 Material: ABS, rubber Battery: 4 x AAA 1.5V(not included) Uses: Widely used to measure fan and blower pressure, filter resistance, wind speed, furnace pressure, orifice differential pressure, etc. Also used in air gas ratio control and automatic valve control during combustion, as well as blood pressure and respiratory pressure monitoring in healthcare equipment Basic Parameters: Measuring Range: ±10kPa Accuracy: ±0.3%FSO (25℃) Repeatability: ±0.2% (maximum ±0.5% FSO) Linearity Or Hysteresis: ±0.29%FSO Response Time: Typical 0.5 seconds Low Battery Reminder Function: Yes Exceed Positive Pressure Range Prompt: Err1 Exceed Negative Pressure Range Prompt: Err2 Package List 1 x Instrument 4 x Air Pipe 1 x USB Cable 1 x Driver CD 1 x User Manual