Technical Introduction of the ST-3/XT3, Probewell Connect and Accessories

Technical Introduction of the ST-3/XT3, Probewell Connect and Accessories



The first socket-type transformer-rated site tester with integrated WiFi technology

In response to the ever-growing need for efficiency and portability, we proudly introduce the ST-3/XT3.

Full RMS and line cycle measurement of both secondary and primary currents and voltages 
Rooted at its core is a high-performance multiphase energy-metering circuitry.

Compatible input voltage
The ST-3/XT3 is powered directly from the meter base for quick and easy setup.
· From 100 to 480 VAC between phase and neutral

Plug & Play
Connect the CT and PT measurement accessories directly to one of the two ports on the front of the device.

Uncompromised accuracy
The tester has three built-in current sensors of up to 20 Amperes to analyze the secondary current directly at the meter socket.
· 3 current sensors up to 20 A
· Typical accuracy of 0.05%
· Maximum accuracy of 0.1%