PowerMon-W - WiFi / IoT Advanced Battery Monitor / DC Power Meter with data logging

Designed and assembled in USA.

This product requires an additional shunt. Add one for 40% off.

Here it is, the new PowerMon-W! Everything you knew from the Bluetooth PowerMon but now with WiFi. Monitor the batteries in your RV, camper, boat, or solar system remotely from anywhere in the world. All you need is a connection to the Internet. 

PowerMon-W is an affordable, high-tech solution for monitoring electrical systems. Whether you're in an RV, camper, or boat, utilizing solar systems, or managing off-grid setups, PowerMon is designed to meet your battery monitoring needs. Remotely monitoring DC circuit parameters has never been easier!

Go ahead and test before you buy. Install the PowerMonX app from the Apple / Google app stores. Using your mobile device, tap on the link below. It should open with the PowerMonX app. This is a demo device. It accepts only 16 simultaneous connections so please don't leave your phone connected to it. Other people want to test it too.

https://applinks.thornwave.com?n=DemoUnit&s=36129e86da98dda9&h=40&c=HzotUykUSvP/Ox0xdUpYVw%3D%3D&k=//////////////////////////////////////////8%3D

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

  • Operates at up to 72V, allowing it to work in 12V, 24V or 48V systems
  • Measures over 1000A using any external shunt
  • Can drive a relay for remote ON/OFF, low-voltage disconnect, high-voltage disconnect, over-current disconnect, low-temperature disconnect, battery protection, generator start, and more.
  • WiFi, fully configurable, access it over the Internet
  • Data logging that can store up to 3 years of data history
Sale price$179.99 Regular price$199.99
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Add an additional shunt for 40% off!

Use PowerMon In

RVs

Probably our biggest market. Any RV has at least one battery. You should know how much power you have left!

Boats

Kinda like an RV but for the aquatic specimens. They have big batteries, solar panels, ACs and water makers.

Smart Home

Do you have solar? Maybe you should. You should also use a PowerMon to check how much power you're generating.

Solar Energy

From the smallest solar system (20W) to the largest... PowerMon can find it's way in your system.

Automation

Control lights, water pumps, generators, or irrigation using PowerMon's built-in timers.

01

PowerMon-W is a wireless battery monitor

It can measure two voltages up to 72V and current over 1000A using any external shunt. It then calculates power (W), energy (Wh), charge (Ah), battery state-of-charge (SOC %), and estimated time left until the battery is fully discharged.

02

And it's WiFi

PowerMon-W is equipped with WiFi and can be accessed remotely, over the Internet. You can use your cellphone or tablet to connect to it and check what your battery is doing from anywhere in the world. If you don't have Internet at the location where PowerMon-W is installed, no problem! You can also connect directly to it.

03

You can use any external shunt

PowerMon-W is configurable so you can wire it to any external shunt. Also, it's important to note that you can place it on either the positive or negative side of the battery.

04

And it can drive an external relay

The capability of driving a relay opens up a lot of possibilities. You can use either a mechanical relay or a solid-state relay for various applications, such as remote ON/OFF switch, battery protection, or even starting a generator.

05

Many protection features

Don't leave your expensive batteries unprotected!

Paired with a relay, PowerMon-W can serve various functions, including acting as a low-voltage disconnect, high-voltage disconnect, over-current disconnect, low-temperature disconnect, high-temperature disconnect, or generator controller. And by the way, we also offer timer functionality.

06

Logs the data for up to 3 years

Record what your battery is doing! PowerMon-W can log data for up to 3 years inside an internal memory, unlike other similar products on the market that store it inside the mobile app. This means you don't need to have a mobile device permanently connected to the battery monitor. Whenever you connect to PowerMon-W, the mobile app will download the data logs from the device. PowerMon-W records voltage, current, power, temperature, and state-of-charge, and you can adjust the recording frequency from once a second to once a minute.

07

And can even start your generator

Enable the generator control feature, and PowerMon-W can start your generator when the voltage or state-of-charge drops below a specified threshold.

08

Very Low Power

Yes, we've done this too! PowerMon-W stays connected to the Internet and does it all while sipping on only 4mA. The battery self discharge is higher than what PowerMon-W needs to function.

01

PowerMon-W is a wireless battery monitor

It can measure two voltages up to 72V and current over 1000A using any external shunt. It then calculates power (W), energy (Wh), charge (Ah), battery state-of-charge (SOC %), and estimated time left until the battery is fully discharged.

02

And it's WiFi

PowerMon-W is equipped with WiFi and can be accessed remotely, over the Internet. You can use your cellphone or tablet to connect to it and check what your battery is doing from anywhere in the world. If you don't have Internet at the location where PowerMon-W is installed, no problem! You can also connect directly to it.

03

You can use any external shunt

PowerMon-W is configurable so you can wire it to any external shunt. Also, it's important to note that you can place it on either the positive or negative side of the battery.

04

And it can drive an external relay

The capability of driving a relay opens up a lot of possibilities. You can use either a mechanical relay or a solid-state relay for various applications, such as remote ON/OFF switch, battery protection, or even starting a generator.

05

Many protection features

Don't leave your expensive batteries unprotected!

Paired with a relay, PowerMon-W can serve various functions, including acting as a low-voltage disconnect, high-voltage disconnect, over-current disconnect, low-temperature disconnect, high-temperature disconnect, or generator controller. And by the way, we also offer timer functionality.

06

Logs the data for up to 3 years

Record what your battery is doing! PowerMon-W can log data for up to 3 years inside an internal memory, unlike other similar products on the market that store it inside the mobile app. This means you don't need to have a mobile device permanently connected to the battery monitor. Whenever you connect to PowerMon-W, the mobile app will download the data logs from the device. PowerMon-W records voltage, current, power, temperature, and state-of-charge, and you can adjust the recording frequency from once a second to once a minute.

07

And can even start your generator

Enable the generator control feature, and PowerMon-W can start your generator when the voltage or state-of-charge drops below a specified threshold.

08

Very Low Power

Yes, we've done this too! PowerMon-W stays connected to the Internet and does it all while sipping on only 4mA. The battery self discharge is higher than what PowerMon-W needs to function.

Why You Need a PowerMon

PowerMon comparison

In case you were wondering.

Connectivity

Bluetooth LE

Bluetooth LE

WiFi

Number of Voltage Inputs

Two

One

Two

Maximum Voltage

65V

32V

72V

Integrated Current Shunt

Max. 60A

Max. 500A

No

External Current Shunt

Any (optional)

No

Any

Battery Side

Either positive or negative side

Positive side only

Either positive or negative side

Installation Difficulty

Involved (more wiring needed)

Easy (minimal wiring required)

Involved (more wiring needed)

Protection From the Environment

High (device is enclosed in epoxy)

Low (install inside protection box)

High (device is enclosed in epoxy)

Frequently Asked Questions

Here are some questions our customers ask us the most.