E-test

JackTang

About this app

E-test is an APP that can view the running status of the energy meter in real time, and records the state of voltage and current power in a curve form.

Ratings and reviews

Works! To the negative comment about it not doing anything you can't see on the device, I say Not True, because the device doesn't graph without the phone app. In my case, I want t know what my welding machine draws while I am welding, and with my eyes looking at the weld while welding, I can't be simultaneously looking at the device, so the retrospective graph is essential to my purpose. Blue tooth connection seems squirrely, but I think the key is to have the app turned on and ready when you plug in/power up the device so they connect during the "welcome" screen time. I could be wrong on that, so, fiddle with it till it works. Also, it seems to (not 100% sure on this yet) disconnect and not automatically reconnect if you walk out of range. Mildly frustrating, but manageable. Finally, scratched my head about why VxA was not equal to watts in AC, like in DC, and finally sorted out that due to shape of sine wave there is a lot of time that the actual voltage is not at full 110 (or 220, or whatever) so, that reflects in actual Watts being always less than V x A. Do your own homework before trusting me on any of this. :) 5 stars. Works and does what I need.

I use eTest on ATorch ammeters, AC, DC and USB on Android devices. The Android version connects to the low energy Bluetooth signal (BLE), so range is limited to no more than 30 feet. I can take screen shots of the graphical display of usage which can be scaled by using your fingers to expand detail by voltage and amps along the side of the graph. I use it in 12v DC applications that are tight in this large scale.

The app is only built for older versions of Android, so for newer versions, it doesn't work at all. The issue is the newer way Android handles permissions. It's only compatible with the older way of how permissions were handled. You can manually set the permissions for it, which at least lets it open, but it will still not find the Bluetooth device, so it won't work. For older versions of Android, it does work, but it only shows limited data and youre not able to change any display settings.

What’s new

修复找不到设备和闪退的问题