The Henning hydraulic elevator load testing kit contains everything you need to quickly and easily measure the important pressures of a hydraulic jack with high precision and accuracy. Running, relief, and bypass pressures are documented in an official test report with the qualified and calibrated sensor included in the report. This product has made available, for the first time, annual measurements of hydraulic pressures in an official and documented report showing all related hydraulic system data. A USB-A/B interface cable connects the sensor to your laptop, where it interfaces with the Henning Sensor Suite Software (free with purchase; updates always free). The silicon chip in the pressure sensor performs value acquisition; a 16-bit analog/digital converter converts the output signal.