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Temperature Guard has been making quality products since 1977. We currently specialize in Food Service, Medical, and Industrial grade applications. We offer quality products from a family business.

Refrigerator/Freezer NetGuard - M303 has been replaced by the awesome new M307. Please take a look!

  • Monitor 2 temperatures and 2 doors
  • Quick setup
  • Continuous temperature data logging
  • Stores up to 4 months worth of temperature data
  • Access temperature data with a web browser from anywhere
  • Rechargable battery backup