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Use the PowerCost Monitor WiFi to connect the PowerCost Monitor to your home's Wi-Fi® network. That way, you can analyze the energy usage in your home on your computer or laptop. You can also access Microsoft® Hohm™ to find more ways to make your home energy-efficient.

Learn more with this video on Microsoft's Hohm application.

Product Highlights:

  • wirelessly connect to your PowerCost Monitor from your home computer
  • allows you to access information about your home's power use and connect to Microsoft® Hohm™
  • includes Wi-Fi module, AC adapter, and USB cable
  • requires a computer with Windows® XP SP3 (or later) as well as a wireless home network (802.11b/g/n)
  • 4-7/8"W x 1-3/8"H x 5-7/8"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

Blue Line BLI 31100 PowerCost Monitor™ WiFi Reviews

Hands-on research

What's in the box?

Download owner's manual

  • PowerCost Monitor WiFi module
  • AC power adapter (with attached 6' DC cord)
  • 39" USB cable (with a male mini-USB type-B connector on one end and a male USB type-A connector on other end)
  • Installation & Setup Guide

Product Research



Overview: The Blue Line Innovations PowerCost Monitor WiFi (BLI-3100) is a Wi-Fi upgrade accessory for the Blue Line BLI-28000 PowerCost Monitor (759PCM, sold separately). The PowerCost WiFi lets you connect the PowerCost Monitor (BLI-28000) to the Internet and Microsoft Hohm, so you can analyze your energy usage and find out how to save money on your energy bills. The PowerCost Monitor WiFi lets you feed your home's real time electricity data from your installed Blue Line Innovations PowerCost Monitor (sold separately) into Microsoft Hohm. The PowerCost Monitor System and Microsoft Hohm are a terrific tool kit to learn more about electricity consumption in your home and make better informed decisions about how to reduce electricity usage and to reduce your monthly electricity bill.

Note: PowerCost Monitor (BLI-28000), Microsoft Hohm service account, and wireless home network required.

Wireless Connection: The Blue Line PowerCost Monitor WiFi (BLI-3100) allows the Blue Line PowerCost Monitor (BLI-2800, sold separately) to wirelessly transmit energy data from your home's electric meter to your Windows-based computer and to Microsoft Hohm.

PCM WiFi Software: The PowerCost Monitor WiFi (BLI-3100) requires software to configure its wireless features and to link to Microsoft Hohm. The free downloadable software can be found at

Microsoft Hohm Compatible: Microsoft Hohm is a free Web-based beta application and community portal that helps consumers to save energy and money. With Microsoft Hohm you can better understand your home energy usage, get recommendations to conserve energy and start saving. Hohm uses advanced analytics licensed from Lawrence Berkeley National Laboratory and the Department of Energy to give you highly personalized energy saving recommendations. These recommendations are tailored based on your specific household circumstances including home attributes and use of appliances and systems. When Integrated with the PowerCost Monitor WiFi system, you can also harness the power of specific real-time and over-time information about your own energy usage, appliances, infrastructure, habits, and more.

Hohm Score: Your Hohm score lets you compare your energy usage to others over time and in real time. This means not only can you track your energy usage in real time, but compare it to the energy usage and energy usage patterns of others in your area.

LED Indicator: The PowerCost Monitor WiFi is equipped with single LED indicator which indicates the unit's wireless status.

Power Supply: The Blue Line Innovations PowerCost Monitor WiFi operates off of standard household AC current with the included AC power adapter.

Software Updates: In order to install a software update (from to the PowerCost Monitor WiFi, you must attach it to your windows-based computer using the supplied USB cable and start Blue Line Innovation's PCM WiFi Setup Wizard.

Disclaimer Note: The Blue Line PowerCost Monitor and PowerCost Monitor WiFi products are not a billing system and in no way are connected to  your electricity bill and my not provide information that exactly matches your electricity bill. Many factors can affect the accuracy of the system, such as (but not limited to) quality of installation & setup, battery condition, and Internet connection status, as well as adverse weather.


System Requirements:

  • Blue Line Innovations PowerCost Monitor (759PCM, sold separately)
  • Wi-Fi accessible broadband internet connection with 802.11b support
  • PC or laptop with Windows XP SP3 (or later)

Wireless Environment:

  • 802.11B MAC (802.11B/G and 802.11n Draft 2.0 compatible)
  • Up to 2Mbps data rate
  • Power Output + 10dBm (10mW)

Security Settings:

  • 40/60-, 128-, 152-bit WEP
  • Wi-Fi Protected Access (WPA/WPA2)
  • Secure Socket Layer (SSL) upload to Microsoft Hohm

Configuration & Management:

  • PC application to configure Wi-Fi settings and update firmware
  • Embedded web application for Microsoft Hohm activation

Power Requirements:

  • 100v-240v AC
  • 6.4W max

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.