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RuoShui 71B Signal Generator Thermocouple Current Voltage Portable Process Calibrator 4-20mA Analog Transmitter Source Simulator
Bracket Design
The back of the fuselage is supported by a bracket, which can be placed on the desktop for easy measurement.
Pen Storage Design
The back of the instrument protective case has a pen storage and hanging hole design, which is easy to carry the pen for easy measurement.
Measuring Knob
Multi-range range, clear handwriting, accurate gear, strong sense of pause, good feel.
John Tsouris
Reviewed in the United States on March 4, 2025
I can definitely get 4-20 out of this, but the issue is it has an aggressive auto shut off feature. There is a settings menu where you can shut it off, but the instructions are incorrect, telling you to press the backlight button instead of the waveform step button. Even then, you will maybe get a total of 30 minutes of signal generation out of this before the tiny triple-AAA batteries need replaced and it does not have a way to plug it in for AC power. I don't think it's worth the $100.
Electrohacker
Reviewed in the United States on January 31, 2025
this , darn thing doesn't work at all.
Flashoflight
Reviewed in the United States on July 3, 2024
Industrial use for circuit design, calibration, and Program testing. I was disappointed when I realized this only puts out 1ma at 10 vdc. A way better solution is the SG-004a. For a few dollars more, you get 10x the functionality! Sent my RuoShui back.
Customer
Reviewed in the United States on March 19, 2024
The 420mA works great for testing input cards out in the field. It irritates me that this meter is DC because I usually have to test for incoming 120v power. Due to this I find I just use this as a bench meter and not out in the field troubleshooting.
Xj666
Reviewed in the United States on November 1, 2024
Small and easy to carry. Usually detect some small appliance equipment small problems very easy to use. High definition large screen display.
Lim X
Reviewed in the United States on October 30, 2024
It include a bag, can nicely organized with cords. The screen is big and clear enough for showing numbers, and it's also contain a lcd blacklight can work in the dark. I used this one to get the reads from my car's battery voltage, easy to connect and set. It gives the solid feel when you hold it, not too busy functions and easy to use.
Quantum
Reviewed in the United States on October 25, 2024
Very functional, Easy of use and very helpful device, each man must have at the home.
Chad Matthews
Reviewed in the United States on October 24, 2024
Great for testing different current settings, easy fit in your pocket or car console and pull out when needed. Iām always trouble shooting loose grounds and this tool makes my life so much easier.
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