Sensor Switch, Inc.
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Data Loggers

The Data Logger Monitoring System is a tool developed by Sensor Switch to enable performance contractors, lighting retrofitters, and facility managers to calculate the potential Return on Investment (ROI) and Payback from an occupancy sensor project. Over the past few years it has been used to monitor thousands of buildings of all types and sizes.

The web pages linked in this section describe the system and the information it records. Several sample reports are linked and available for download. Additionally, we've compiled and posted example summary data of usage and savings for various building types and sizes which can be used to estimate your own sensor project.

Download Data Logger Brochure PDF Download

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System Highlights

  • Data Logger units record activity of a building's lighting as well as its occupants
  • Data Logger software analyzes information and generates customized reports
  • Data is presented in "Lights On vs. Occupancy" timeline.
  • Customized reports quantify potential energy savings from occupancy sensor projects
  • Use of system is provided to qualified customers at no charge
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Device Features

While light monitors have been around for years, the Sensor Switch Data Logger surpasses all predecessors with several new features that assure more useful results and provide easier usage.

  • Combination occupancy sensors and light monitoring device
  • Distinguishes between outside light and artificial light sources
  • Multiple loggers can be used together to monitor large spaces
  • Installs in seconds; operation consists of a single button push
  • Data points are recorded every two minutes
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Energy Savings Analysis

The Data Loggers are downloaded into sophisticated software that analyzes the data and generates customized reports.

  • Each Data Logger is assigned an Area Type
  • Software averages information from Data Loggers of similar Area Types
  • "Lights On vs. Occupancy" activity per area presented in 24 hour timelines
  • Total energy usage calculated from user entered lighting loads
  • User adjustable "virtual" occupancy sensor time delay settings
  • Analysis of Savings vs. Time Delay Setting on sensors
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Customized Report

  • Savings calculated using up to 4 Time-of-Day Billing Rates
  • Total potential saving summaries presented in easy to read charts and graphs
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Example Summary Data

Below are a number of example Data Logger summary reports, sorted by building type and then by square footage.