Technical performance Range: 0.1 ~ 0 ~ 100 mpa Accuracy : 0.2 % 0.5% Overload capacity : 200% Type : gauge The stability : ≤0.1% /year The battery voltage: 9 VDC Display :LCD Display range:-1999-9999 Ambient temperature: - 20 °C ~ 70 °C Relative humidity : ≤80% Install thread :M20 * 1.5 Interface material :stainless steel Features: Large-screen LCD display, high resolution Peak hold function to record the maximum pressure during the measurement value Pressure percentage dynamic display, (the progress bar shows) Five kinds of engineering unit selection: psi, bar, kpa, kg / cMpa Select 1 ~ 15min automatic shutdown feature. Micro-power, power-saving mode can work in more than two years of continuous work 2000 hours. Parameter correction function, the instrument can live zero error value correction. Upper and lower limit range Sampling rate: 4 times / sec. Apply pressure of various gases compatible with stainless steel measuring liquids