---
title: How does the ShowerStar water-saving timer work?
description: Learn how ShowerStar uses a simple traffic light system to help your family save water and money. Easy-to-follow colour cues for a better shower routine.
---

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# How does the ShowerStar water-saving timer work?

ShowerStar uses a simple, intuitive traffic light system to guide you towards a shorter, more efficient shower without the need for strict enforcement. By providing real-time visual cues, the device offers a gentle behavioural nudge that helps your family save water, energy, and money.

Here is how the colour-coded system works:

1. **Blue**: Water flow is detected: The device auto-detects flow and turns on when the water runs.
2. **Green**: Timer started: Confirmation that your session is being tracked.
3. **Amber**: Half-time: A gentle nudge that you are halfway through the recommended duration.
4. **Red**: Full-time: An alert indicating you have reached the target duration.

If you'd like to watch a video instruction, please click [ShowerStar - Configuring costs](https://vimeo.com/1089648579?fl=pl&fe=sh).

**Why this method works**

Unlike standard timers that just count down minutes, ShowerStar focuses on **behaviour modification**. The lights are universally understood symbols that make conservation effortless for everyone, from young children to adults.

- **Household Harmony:** It removes the need for parents to nag or knock on the door. The light does the talking.
- **Tangible Savings:** Following the red light consistently can save the average family significant amounts on yearly utility bills.
- **Eco-Impact:** Reducing your shower time creates a positive ripple effect on our collective environmental footprint.

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