Product model: PWD30-EPO、PWD50-EPO、PWD30-EPO-H、PWD50-EPO-H

1. Scan BLE which can sensor energy.
2. According to different sensors to choose a different interface.
3. Get alert message from error code.

What’s New

Version 1.3

1. Only EPO products are allowed to be added to the device list by QR code.
2. Add use teaching.
3. Modify some UI.

Ratings and Reviews

3.9 out of 5
21 Ratings

21 Ratings

Silver Streak 1 ,

My 50 Amp Power Watchdog

I looked at the apps for both 30 amp and 50 amp and found that the 50 amp is lacking the ability to set the amp alert level, where the 30 amp has that capability. This would be handy if you had to use a 30 amp service. Otherwise, I am still checking it out.

Update 1: I found that I had no problem connecting the app to my IPhone 7, but my IPad Air was a totally different story. After several tries, I had no success with my IPad.

Aellus ,

Very noisy notifications

The app offers very basic information about the status of the surge protector. We’ve been testing it on our first trip with our new RV and it has cut the power twice on us for going over current. I don’t know how accurate the meter is on the EPO itself, but that is a separate review :) the app made it very easy to check why the power cut off and to turn it back on right from my phone. Never needed to go outside of the RV!

Knocking some stars because when I had notifications turned on it was incredibly noisy, pinging my phone every few minutes that it disconnected. I don’t know what that alert meant: that my phone disconnected from the EPO, or that the EPO power had disconnected? Either way, power never appeared to be disrupted in the RV so I assumed it was an app issue. The app has no option to configure notifications (no options to configure anything, really), so my only choice was to disable all notifications completely from iOS. This meant I had no notifications when the power cut off and had to figure out what happened on my own. Would be nice to configure some settings like what notifications I want to see and adjust some thresholds for power off.

dkanesthesia ,

Love Bluetooth connectivity.

My only complaint is the false notifications of device shutting down when there is no disruption of power and all readings are within perimeters.


23.6 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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