---
title: Can ShowerStar sense water temperature?
description: Is your ShowerStar blinking blue when the water is off? Fix phantom flow detection by tightening your mount, recalibrating Learn Mode, or adjusting settings.
---

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# Can ShowerStar sense water temperature?

No, ShowerStar is unable to sense water temperature. ShowerStar uses non invasive vibration sensing to sense water flow and does not come into direct contact with water to enable it to sense water temperature.

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      "text" : "The blue flashing LED indicates the ShowerStar is detecting water flow. If the shower is off, the sensor may be detecting vibrations in the pipe. Ensure the mounting cradle is zip-tied very tightly and perform 'Learn Mode' via the app to recalibrate the sensor."
    },
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```json
{
  "@context" : "https://schema.org",
  "@type" : "HowTo",
  "description" : "Steps to troubleshoot phantom flow detection on your ShowerStar timer.",
  "name" : "How to stop ShowerStar blue LED from flashing when off",
  "step" : [ {
    "@type" : "HowToStep",
    "name" : "Tighten Mounting Cradle",
    "text" : "Ensure the mounting cradle is mounted firmly to the shower pipe with the zip ties fastened very tightly."
  }, {
    "@type" : "HowToStep",
    "name" : "Check Device Insertion",
    "text" : "Ensure the ShowerStar unit is fully inserted into the mounting cradle."
  }, {
    "@type" : "HowToStep",
    "name" : "Relocate and Learn Mode",
    "text" : "If the device still senses phantom flow, move it to a different section of the pipe and perform 'Learn Mode' via the app."
  }, {
    "@type" : "HowToStep",
    "name" : "Disable Blue Flashing",
    "text" : "Alternatively, you can turn off the standby light feature by selecting 'Off Blue Flashing' in the device settings."
  } ],
  "supply" : [ {
    "@type" : "HowToSupply",
    "name" : "ShowerStar Device"
  }, {
    "@type" : "HowToSupply",
    "name" : "Zip ties"
  } ],
  "totalTime" : "PT5M"
}
```