The most sophisticated industrial equipment is useless unless it’s calibrated. GAOTek offers a selection of process calibrators to assist in adjusting a variety of different instruments’ accuracy. Once purchased, it will be the only process calibrator you will ever need to carry. These instruments can measure temperature, pressure, voltage, resistance and frequency during troubleshooting. Through calibration, you can ensure that any equipment performs as expected.

Professionals can rely on it to deliver predictable and accurate results that meet quality standards. The GAOTek process calibrators have a USB interface feature that improves the transfer of results to other devices, the transcribing process is otherwise time-consuming without a USB interface. These process calibrators are for sale to the United States, Canada and globally.


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This Temperature Calibrator with Task Manager (Troubleshoot) is an ultra-compact device used for sourcing, simulating and measuring temperature and electrical signals with several patented technologies.


This Handheld Multi-function Process Calibrator is a highly accurate device which simulate TC and RTD signals and is used for in-site calibration of industry. instruments


This Ultra-Compact Temperature Calibrator with HART Comm (Task Manager) device is used for sourcing, simulating and measuring pressure, temperature, electrical signals and is an ideal device for troubleshooting process instrumentation


This Thermocouple Calibrator with Temperature Select (Source measure) is designed to measure in units of °C, °F or mV using a thermocouple minijack and can be used for calibrating the thermocouple device.


GAO Tek Thermocouple Calibrator calibrates thermocouple measuring with optional temperature unit select.


This Process Calibrator with OL Sign (Data Hold, Auto range) is designed to measure temperature, voltage, current, resistance and frequency and can be used for detecting and debugging automatic control equipment


This Process calibrator with Pressure (Temp and Electrical) is an ultra-compact device used for Calibrating, maintaining, and troubleshooting in both field and laboratory with several patented technologies.


This Temperature Calibrator with DC Voltage (Resistance, RTD) adopts high-performance ARM microprocessor, can output DC voltage, resistance, thermocouple and RTD along with quick response and stable data.