To turn on the **Radiacode**, press the [round button](Buttons.md) and hold it for three seconds.
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|  | • Press and hold the [round button](Buttons.md) until the device turns on (for at least 3 seconds); <br> • Upon powering on, the device will be in **Monitor Mode** and display the dose rate; <br> • If properly configured, the [[Signals - sound, vibration, light\|signals]]<br> • If properly configured, the display backlight will turn on at this moment. |  |
|  | • Briefly press the round button to access the menu; <br> • The name of the current menu item will be displayed at the top (in this case, “Monitor”); <br> • Menu icons will be arranged vertically; <br> • The active menu item will be highlighted with a negative icon. |  |
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To turn off the device, you can do so via the menu.
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| To turn the device on, press and hold the round button for at least 3 seconds until the device powers on. <br> - Upon turning on, the device will be in [[Display Modes#Monitor]] <br> - If properly configured, the "power-on sound" will play at this moment. <br> - If properly configured, vibration feedback will be triggered at this moment. <br> - If properly configured, the display backlight will turn on at this moment. |  |
| - To turn off the device, briefly press the round button until the menu icons appear. <br> - The display of the icon  indicates that the rocker buttons are locked. <br> To unlock, press and hold theround button for at least 3 seconds. |  |
| - A short press of the round button will turn off the device. <br> - If properly configured, the [[Signals - sound, vibration, light\|signals]] will play at this moment. <br> - The device’s screen will turn off. |  |