WattsVIEW USB DC Power Monitor

WattsVIEW USB DC Power Monitor

The WattsVIEW USB power monitor package includes the WattsVIEW DC power monitor sensor which measures Volts, Amps, Watts, and Watt Hours. This data is sent once each second to your computer through a USB cable.


The free WattsVIEW software displays data for up to 10 sensors at one time and performs real time Watt Hour (KWH) and Amp Hour calculations. The software is free and can be downloaded from the website. The advantage this model has over the WattsVIEW serial product is that it uses a USB plug which connects directly to your computer. With the WattsVIEW Serial product you have to purchase a separate Serial to USB adapter.

Customized LabVIEW power monitoring and control versions for your application for AC or DC monitoring and control. Contact support for price and delivery time. Customized versions can include temperature and pressure monitoring and PID loop control, solid state relay control, power factor calculations, power quality / glitch monitoring, robotics, power cycling, constant power applications.

AVERAGE INSTALLATION TIME: One Hour for hardware and software.


  1. WattsVIEW USB sensor mounted
  2. USB cable
  3. Installation disk for FTDI drivers and WattsVIEW software, owner’s manual
  4. DC 12V Power supply wall adapter.




WattsVIEW DC power monitoring software for Windows Or MAC (OSX) monitors and displays and logs real time DC Volts, Amps, Watts, & Kilowatts for solar panels, wind turbines, pedal power bicycle generators, hydroelectric generator, and thermo-electric generating as well as any kind of DC battery charging or output monitoring.

If you would like to write your own program to collect the data via linux, .NET, C, C++, VB, Python, then you can use standard RS232 communication settings of 9600 baud to capture the data, see specifications for baud settings. This is a USB sensor, but the windows or MAC operating system sees it as a serial port because it has an adapter built in made by FTDI. You will need to load the FTDI drivers provided on the install disk or from the FTDI website. 

Software Download & Install



Safe and Secure WattsVIEW Full Installation.

  •  Monitor up to 10 sensors at once
  • LabVIEW event driven state machine architecture
  • Calculates Amp Hours, Watt Hours,
  • Data logging and data reporting, log files are created one per day per sensor, tab delimited text. 

Version 4.32

Release Notes

Version 4.3

Release Notes

NOTE: If you want to measure a very low amount of current, you can loop the wire through the hall effect sensor multiple times to increase the strength and resolution of the sensor. For instance, looping the current carrying wire through the sensor 10 times will make the current signal 10x stronger!

Follow these basic steps to set it up. (1) Mount the DC-10,000W power monitor by screwing it down with 4 screws through the corner mounting holes. (2) Route the wire that you want to monitor for current through the DC-10,000W current sensor. (3) Get some light gauge wire between size 18 to 26 AWG. (4) Connect the wire from the green connector to your energy source. (Solar panel, wind turbine, bike generator, etc.) (5) Install the WattsVIEW software on your windows computer using the download instructions or installation disk. (6) Connect the serial cable from the power monitor to your computer (7) Launch the WattsVIEW software and select the com port that is hooked up to your power monitor.



NOTE: This DC power monitor is a low cost monitor for Volts, Amps, and Watts. It is calibrated to within 2% accuracy and should be used indication only.

SAMPLING RATE: Takes 16 readings every 1 seconds and gives you an average from those 16 readings.

Digital IO: 8 Digital IO bits that operate from 0 to 5 Volts DC


CURRENT MONITORING METHOD STYLE: Hall Effect Current Transducer (Electrically isolated from your current carrying conductor.) Made by Honeywell CSLA2CF

POWER CONSUMPTION: < 1 Watt (30 mA @ 12 volts)

PCB PHYSICAL DIMENSIONS: Just the Circuit Board 3″ X 2″ / Circuit mounted on plate 4″ X 2.5″

Max wire diameter able to be used with current sensor: 0.4 Inches (9.2mm) / ~Size 6 AWG


COMMUNICATION CABLE TYPE: Male to Female Straight Through Cable DB 9 PIN

COMMUNICATION PROTOCOL: Asynchronous ASCII Numerical Text, no checksum, no handshaking

DATA STRING EXAMPLE(Standard V,A,W Mode): 000012.1V 00001.0A 00012.1W 00000.0WH

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