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 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: ±10 inH2O Accuracy: 0.05%FS Stability: &lt,0.005%FS Connection: Barb fitting Pressure Type: Differential, Gauge > Each Unit Includes 9724 Spare Battery 9914-760 Soft Carrying Case ADT760 Handheld Automated Pressure Calibrator Built-in pressure module to maximum range NIST-traceable certificate of calibration Manual