SNDWAY Digital Differential Manometer Handheld Air Gas Pressure Gauge Meter ±103.42KPA Item Type: Differential Manometer Material: ABS Plastic Color: As shown in the picture Size: Approx. 12.9x6.4cm / 5.1x2.5in Weight: Approx.391g/13.8oz Application: Suitable for the measurement and field calibration of ventilation and air conditioning systems, clean rooms, or any gas pressure system troubleshooting. Simple operation and clear readings. It is an indispensable measurement tool for HVAC technicians, operation and maintenance engineers and scientific researchers. Battery: 3 x 1.5V AAA battery(Not included) Measuring Range: ±103.42KPa Accuracy: ±1%FS, maximum error 1.04KPa Maximum Pressure Limit: 206.7KPa Repeatability: ±0.25%FS Response Time: 0.5S Pressure Connection: A 1/8in (3.18mm) quick connector Working Temperature and Humidity: 0℃~40℃ 10%~80% RH Storage Temperature and Humidity: -10℃~60℃ 10%~90%RH Over-Range Prompt: Err1 or Err2 Range and resolution Unit Range Resolution KPa ±103.42 0.01 mmHg ±775.7 0.1 inHg ±30.540 0.001 psi ±15.000 0.001 mbar ±1034.2 0.1 bar ±1.034 0.001 ozin² ±240.00 0.01 kgcm² ±1.055 0.001 inH₂O ±415.20 0.01 ftH₂O ±34.600 0.001 cmH₂O ±1054.6 0.1