Specification: Model No.: AT2300A&AT2300B&AT2300C&AT2300D&AT2300E&AT2300F Power Source: 3VDC (2pcs of "AAA" batteries) Range: 0~1.2MPa & 0~1.6MPa&0~10MPa&0~40MPa&0~1.6MPa&0~70MPa Surface Diameter: 66mm Dimension of the Display: 48mm(L)*24mm(W) Display Method: 4 digits with four different kinds of units Pressure Display Resolution: 0.1~0.2%FS (≥3%FS) Static Accuracy: 0.5%~1%FS&0.25%~0.5%FS&0.1%~0.5%FS Environment Temperature: -10~50 degree Media Temperature: -20~85 degree Type of Sensor: Diffusion silicon pressure sensorCeramic pressure sensor: Piezoresistive stainless steel sensor Response Time: ≤0.1 seconds&≤0.2 seconds &≤0.1 seconds Automatic shutdown time: 15~120 seconds (can be adjusted according to the customers' demands), the default display time is 30 seconds Proof Pressure: 100%FS Burst Pressure: 150~200%FS Port Configuration: G1/4-19 or according to customers requirements Material of the Case: ABS or PBT≤GF30 Material of the pressure Port: PBT≤GF30 & Brass&304 stainless steel Units for selection: Four kinds of units such as PSI, BAR, kPa and kgf/cm2 can be switched freely Alarm output (Optional ): One set of diode (3VDC) Media Compatibility: Non-corrosive Gas&Non-corrosive LiquidLiquid Others: The default displaying time is 30 Seconds once press the "SET" button; Press and hold the "SET" button for three seconds, the gauge is OFF. Digital Pressure Gauge