This small calibrator utilizes a built-in pump, state-of-the-art sensor technology, and precision control to generate the desired pressures all with a touch of a button. Fully automatic calibrator with built-in pump and controller Switchable internal and external pressure modules for expandable ranges Accuracy (1 year) of 0.02%FS Less than 5 lbs for handheld operation Source pressure, measure pressure, electrical, and temperature 4 channels HART communications datalogging and task documentation features USB, Wifi, and Bluetooth communications Pressure Range: -12.5 to 36 psi Stability: <,0.005%FS Connection: G1/8 BSP F Pressure Type: Differential, Gauge