Features High Accuracy Measurements - Achieve precise readings with a high-accuracy barometer, featuring a backlit LCD display for easy visibility in any lighting condition Comprehensive Data Tracking - Monitor maximum, minimum, and average values effortlessly, with a convenient data retention function for quick reference Essential Tool for Technicians - Designed specifically for HVAC professionals, this digital differential gauge simplifies troubleshooting and maintenance tasks Versatile Measurement Units - Supports a wide range of units including KPa, mmHg, Psi, and more, catering to various industry standards and requirements Ideal for Diverse Applications - Perfect for on-site inspections of ventilation systems, air conditioning setups, clean rooms, and any gas pressure troubleshooting needs Features: 1、High？accuracy barometer, equipped with backlit LCD display, simple and clear reading. 2、It can measure the maximum, minimum and average values, with data retention function. 3、Digital differential prure meter, which is a good helper for HVAC technicians and and maintenance. 4、Various units of KPa, mmHg, InHg, Psi, Mbar, Bar, Ozin2, Kgcm2, InH？O, FtH？O, CmH？O are available to meet needs of industries in different countries. 5、Suitable for measurement and on？site inspection of ventilation and air conditioning systems, clean room, or any gas prure system troubleshooting. Specification: Item Type: Differential Manometer Material: ABS Model: SW-512A Measuring Range: ±3.45KPA Accuracy: ±1%FS, Maximum Error 35Pa Limit The Maximum Prure: 6.89KPa Repeatability: ±0.25%FS Response Time: 0.5S Prure Connector: 1/8in (3.18mm) Quick Connector Working Temperature: 0℃-40℃, 10%-80%RH Storage Temperature And Humidity: -10℃-60℃, 10%-90%RH Over-Range Prompt: Err1 or Err2 Power Supply: 3 x 1.5V AAA Battery (Battery Not Included) Measuring Range and Resolution Model0.1 How to Use: 1. Install the battery (3 x 1.5V AAA dry battery, not included) 2. Pr the power button 3. Connect the hose to the adapter and port, and connect the adapter to the place where the air prure needs to be tested 4. According to the unit needs of different regions, pr the button according to the UNIT unit conversion, DLF difference, recording mode, etc. Package List: 1 x Differential Manometer (Battery Not Included) 4 x Plastic Hose 2 x Quick Connector 1 x Bag 1 x Manual Note: betweenbr> Package List 1 x Differential Manometer (Battery Not Included) 4 x Plastic Hose 2 x Quick Connector 1 x Bag 1 x Manual