PowerMon-D4 - 4.3" Bluetooth Color Touchscreen Display - Thornwave Labs
PowerMon-D4 - 4.3" Bluetooth Color Touchscreen Display - Thornwave Labs
PowerMon-D4 - 4.3" Bluetooth Color Touchscreen Display - Thornwave Labs
PowerMon-D4 - 4.3" Bluetooth Color Touchscreen Display - Thornwave Labs
PowerMon-D4 - 4.3" Bluetooth Color Touchscreen Display - Thornwave Labs
PowerMon-D4 - 4.3" Bluetooth Color Touchscreen Display - Thornwave Labs
PowerMon-D4 - 4.3" Bluetooth Color Touchscreen Display - Thornwave Labs

PowerMon-D4 - 4.3" Bluetooth Color Touchscreen Display

Sale price$199.99 Regular price$299.99
Save $100.00

Designed and assembled in USA.

PowerMon-D4 is an affordable, low-power, 4.3-inch, color touchscreen display for the PowerMon line of battery monitors / DC power meters. The display can be mounted on any flat surface and has a modern, low-profile look.

The display connects to up to two PowerMon battery monitors via the integrated Bluetooth radio. It can display two PowerMons at the same time. No wiring is required, other than supplying 8V~65V power. Multiple power-saving features are supported, from reducing the screen brightness to completely turning the screen off after a specific time of inactivity. In the lowest power mode, the display consumes only 46mA. A simple tap will bring it back to life. The typical current consumption is only 81mA at 12V. If powered from 48V the power consumption can be as low as 15mA.

The display also has a WiFi network interface which allows it to connect to the Internet for software updates and future-proofs it for many other features to come.

Please read the Product Use Disclaimer & Warranty Policy at the bottom of this page before ordering.

User Manual

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Customer Reviews

Based on 7 reviews
57%
(4)
29%
(2)
0%
(0)
0%
(0)
14%
(1)
M
Mark S.
GREAT TECH SUPPORT

Great technical support. If you have any questions, give them a call. They’ll answer without going through 10 robots.

M
Mark S.
Not stable

The readings are not consistent and I don't trust the data. I would not recommend.

J
Jon A.
Great Tool

The PowerMon D-4 is a great tool in monitoring my RV’s battery bank. I have four LiFePO4 batteries and 4 solar panels. When camping off grid, you need to know what your batteries are doing as to adjust your power usage. Without the PowerMon D-4, I was blind and did not know my batteries current state of charge, and on several occasions lost power as the batteries were dead.

With the PowerMon D-4, I know when to cut back, when to put out panels and know exactly the state of charge of my batteries. This is an indispensable tool that it super easy to install and use. In combination with the PowerMon-5S shunt, I have a window into my RV’s power supply that shows me everything I need at my fingertips. I give it 5 stars and highly recommend it to anyone using solar with a battery bank.

F
Fred H.
Nice unit!

I bought this to go in my travel trailer next spring. Currently, I am using it with two battery boxes I built and it works mostly as expected.

One thing I haven't been able to do is connect to my network. It is not an issue right now, but possibly in the future.

A
Anonymous
Good but . .

Did not work the way the wiring diagram showed. Had to talk with support and still did not get satisfactory answers. Turns out, for whatever reason, my 2004 HR has to be wired in reverse on the shunt to work properly - probably because of the wiring to the converter. Anyway, after hours of fiddling and finally taking the chance to reverse wiring, it works!

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