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EONE ET310A 2 in 1 20MHz 80Msps Digital Handheld Storage Oscilloscope ScopeMeter True RMS Multimeter Automatic Measurement 25% OFF EONE ET310A 2 in 1 20MHz 80Msps Digital Handheld Storage Oscilloscope ScopeMeter True RMS Multimeter Automatic Measurement US$137.69 US$183.99 View It
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bobj 22/01/2019
The accuracy in my testing compared to a Fluke 8060A is quite good on AC, DC, capacitor and frequency ranges. The scope function works nicely at power line frequency, my main use. There is a problem with the low DC range reaching ZERO with nothing connected to the meter, a minor issue in real use. However the current version of software in my unit needs a update. In only as few minutes of testing I found the following issues with the software. I expect to find more as I use the meter. 1) The auto range function on AC volts gets "stuck" with 120V AC applied and picks a range too low for the voltage applied. This results in the wrong reading on the display. For example I apply 120V AC and the meter picks the 40V range and displays 40 volts. Should have picked 400 volt range and displayed 120V. Manual changing of the range to 400 volts results in the correct 120V value on screen. This makes auto range on the meter unusable as you never know if the right voltage is on screen. 2) When using the relative function with dB the dB value becomes incorrect. For example apply 120V AC on 400 volt range push the dB button. Meter reads 120V at 43dB Rel to 600 ohms. This is correct. Press the REL button. Voltage reads 0.0V (correct) and dB reads --- (0dB,maybe??). Reduce the voltage to 60 volts (-6dB drop in level). Meter reads -60V (correct) and 37dB (wrong should read -6dB relative change) 3) Be nice if the back-light came on when any key is pressed so the light key does not need to be pressed every time. Over all the potential for a very nice scope meter with some updating to the software. Perhaps there is away to update the meter's software in the future. That would be nice.
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  • Banggood Dear bobj,Thank you for choosing Banggood and sorry for the inconvenience caused.Banggood welcome any of your suggestions, now and in the future. We want you to make the most out of our products and services, and make sure that you are always satisfied. If you have any questions or suggestions, please do not hesitate to contact us via these links: Personal Computer: http://www.banggood.com/Contact-Us_hi111Mobile: https://m.banggood.com/contact_us.htmlBest regards,Banggood Team

    22/05/2024
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