# Understand LED Indicators

Moasure uses LED colours and patterns to show device status during use.

LED behaviour differs slightly between:

* **Moasure 2 & Moasure 2 PRO**
* **Moasure ONE**

{% hint style="info" %}
**Moasure automatically powers off after 30 seconds of inactivity.**\
This helps preserve battery. You can adjust the disconnection time in the [app settings](/en/moasure/turn-device-on-and-off.md). 
{% endhint %}

***

### **LED Colour Guide**

🔵 **Blue** = Device status *(on / connected)*\
🟢 **Green** = Measuring or point captured *(aim to pause in the green zone)*\
🟠 **Amber** = Warning – pause soon\
🔴 **Red** = Action required – pause immediately or resolve issue

***

## **Moasure 2 & Moasure 2 PRO**

### **During Measurement**

| LED Behaviour                    | Meaning                                    | What to Do              |
| -------------------------------- | ------------------------------------------ | ----------------------- |
| 🔵 Flashing Blue                 | Device is on, waiting to connect           | Open the app to connect |
| 🔵🔴 Flashing Blue + Red         | Low battery while waiting to connect       | Charge device           |
| 🔵 Rising & Falling Blue         | Connected to the app                       | Ready to measure        |
| 🔵🔴 Rising & Falling Blue + Red | Connected with low battery                 | Charge soon             |
| 🔴 Solid Red                     | Waiting to capture a point                 | Place device still      |
| 🟢 Solid Green                   | Point captured successfully                | Continue measuring      |
| 🟢 Flashing Green                | Device is moving and measuring             | Keep moving smoothly    |
| 🟠 Flashing Amber                | Approaching time limit (6–9s / 12–18s PRO) | **Pause soon**          |
| 🔴 Flashing Red                  | Time limit exceeded                        | **Pause immediately**   |

{% hint style="danger" %} <mark style="color:red;">**PAUSE GUIDANCE**</mark>:&#x20;

* Aim to place the device while the LED is **🟢 green**
* 🟠 **Amber** = pause soon
* 🔴 **Red** = pause immediately to avoid accuracy loss
  {% endhint %}

***

### **Not Measuring (Battery Status)**

| LED Behaviour            | Battery Level                                 |
| ------------------------ | --------------------------------------------- |
| 🟠🟠🟠🟠 4 Amber Flashes | 0–25%                                         |
| 🟢 + 🟠🟠🟠              | 26–50%                                        |
| 🟢🟢 + 🟠🟠              | 51–75%                                        |
| 🟢🟢🟢 + 🟠              | 76–99%                                        |
| 🟢 Solid Green           | Fully charged                                 |
| 🔴🔴🔴🔴 4 Red Flashes   | Charging fault (temperature or battery issue) |

***

## **Moasure ONE**

### **During Measurement**

| LED Behaviour         | Meaning                          | What to Do            |
| --------------------- | -------------------------------- | --------------------- |
| 🔵 Flashing Blue      | Device is on, waiting to connect | Open the app          |
| 🔵 Slow Flashing Blue | Connected to the app             | Ready to measure      |
| 🔴 Solid Red          | Waiting to capture a point       | Place device still    |
| 🟢 Solid Green        | Point captured successfully      | Continue measuring    |
| 🟢 Flashing Green     | Device is moving and measuring   | Keep moving smoothly  |
| 🟠 Flashing Amber     | Approaching time limit (6–9s)    | **Pause soon**        |
| 🔴 Flashing Red       | Time limit exceeded              | **Pause immediately** |

{% hint style="danger" %} <mark style="color:red;">**PAUSE GUIDANCE**</mark>:&#x20;

* Aim to place the device while the LED is **🟢 green**
* 🟠 **Amber** = pause soon
* 🔴 **Red** = pause immediately to avoid accuracy loss
  {% endhint %}

***

### **Not Measuring (Battery Status)**

| LED Behaviour     | Meaning                 |
| ----------------- | ----------------------- |
| 🟠 Flashing Amber | Charging                |
| 🟢 Solid Green    | Fully charged           |
| 🔴 + 🟠🟠         | Battery low             |
| 🔴🔴🔴            | Error (contact support) |

***

### **Good to Know**

* LED feedback helps guide **timing and accuracy**
* Focus on:
  * smooth movement
  * correct placement
  * pausing within the green zone

For additional guidance, use [**Moasure Coach**](/en/moasure/measuring-technique/use-moasure-coach.md) to understand and improve your technique.


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