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Thornwave Labs Inc.

PowerMon - Bluetooth Battery Monitor / DC Power Meter

12 Reviews
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- OUT OF STOCK -

You can pre-order the device and get 10% discount. Use the coupon "PREORDER" at checkout.

Due to the Corona virus outbreak, shipping of the new PowerMon devices will be late at least two weeks from the initial shipping date at the end of February. The new expected date is first or second week of March.

PowerMon is a Bluetooth hi-tech device that can be used to monitor the state of charge of any battery and power flow in any electrical system. On top. . .
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- OUT OF STOCK -

You can pre-order the device and get 10% discount. Use the coupon "PREORDER" at checkout.

Due to the Corona virus outbreak, shipping of the new PowerMon devices will be late at least two weeks from the initial shipping date at the end of February. The new expected date is first or second week of March.

PowerMon is a Bluetooth hi-tech device that can be used to monitor the state of charge of any battery and power flow in any electrical system. On top of the monitoring functions, PowerMon can act as a power controller, allowing for low voltage disconnect, high voltage disconnect, over-current disconnect, battery isolator, remote ON/OFF switch, timer switch, generator control, and solar system automation. With Bluetooth LE (Smart) connectivity there is no need for drilling and extra wiring in existing or new applications (RVs, boats, solar systems). Small form factor and ease of installation make PowerMon ideal for quickly adding smarts to any existing electrical system. Remotely monitoring DC circuit parameters has never been easier!

Voltage, current, power, energy, battery state of charge, and temperature are all measured and displayed in real-time using Thornwave Labs’ mobile application, PowerMon, which is offered for free on Google Play and Apple App Store. The device supports multiple configurations and measurement ranges that can be set up using the app, allowing it to accommodate a variety of circuits. Control of a mechanical or solid-state relay allows it to be used for low voltage disconnect, high voltage disconnect, over-current disconnect, a battery isolator for multiple battery systems, remote power control, or timers. This wireless, multi-function tool is truly a Swiss-army knife for DC electrical systems.

The device measures two voltages up to 75V with better than 0.5% accuracy. It contains an internal shunt making it able to measure current up to 60A without using any external parts.  The current measurement can be calibrated to an accuracy better than 1%. If higher current has to be measured (as high as 10,000A), an external shunt can be added. Current shunts are readily available and can be customized for the specific current measurement range required. PowerMon supports a wide range of current shunts.


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PowerMon FAQs

Customer Reviews

5 Based on 12 Reviews
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Filter Reviews:
    JO
    12/09/2019
    JOHN O.
    United States United States
    I recommend this product

    Almost perfect

    I'm using the Powermon as part of a lithium battery management system in my van camper. Out of the box - coupled with the Thornwave SSR and shunt it does a good job of protecting the battery from over discharge and as a state of charge meter. While it can also trigger a relay when an over charge situation is detected it lacks a second relay port. Which means you have to purchase and install two powermon devices if you want both LVD and HVD protection. Why? because you don't want to disconnect the loads when an over charge condition is detected! Note: I purchased a second powermon and dedicated it to charge control. The charger I'm using is a Kisae DMT1250. I installed an SPST relay across the ON/OFF switch in the charger. The powermon closes the relay when the battery voltage drops to 13.31 and opens it at 13.68 - for further detail with regard to the charging regimen find the link to this article "Lithium Iron Phosphate LiFePO4 - Generic Charge Settings NEW" on this webpage: https://www.morningstarcorp.com/custom-settings/custom-settings/#battery-manufacturer-model

    RP
    11/18/2019
    Russell P.
    United States United States
    I recommend this product

    Excellent product and support

    The product is excellent and when I had questions the support was absolutely first rate.

    AH
    11/12/2019
    Anthony H.
    United States United States
    I recommend this product

    Experience had been great so

    Experience had been great so far I've set this unit up as a portable battery monitor with alligator clips that i can use with the relay control for the balancing of large lithium battery cells and monitor around the shop with my phone.

    A
    08/29/2019
    Anonymous
    United States United States
    I recommend this product

    An excellent device!

    This device is awesome! It does exactly what it says and is the perfect information on what you need for your battery!

    A
    06/26/2019
    Anonymous
    United States United States
    I recommend this product

    Excellent power monitor, exceeded expectations

    Expectations exceeded, the power monitor is solidly built, very sturdy, sealed unit. Bluetooth range is excellent. I have the power monitor in the front of the 5th wheel, and can easy reach to the back of my 36' foot trailer. I'm excited to add in the solid state relay in the near future to disconnect power from the app, as well as disconnect on low voltage. As for the app, simple and to the point. Has the needed features, one thing I may request in future updates. 1) have a built in historical trends to review past voltage graphs, amps, power, etc. I'm not always at my trailer, but would love to go back and review past graphs to determine what caused the batteries to deplete. Overall, I'd highly recommend this product to others.

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