Frequently Asked Questions
The app can be downloaded from the Apple App Store and the Google Play Store.
The app is available only for Android and iOS smartphones. Other operating systems are not supported.
Supported Android devices: Bluetooth®-enabled smartphones from Android 6.0. Supported iOS devices: iPhones from iOS 11.
Tablets are not supported.
Go to the app settings to see which languages the app is available in.
The app can be connected to all Bosch levelling tools (line lasers, combi lasers and rotary lasers) that have a "C" in the name.
First, check that Bluetooth® is activated on both your tool and your smartphone and that the devices are within range. Neither of the devices must be connected to any other Bluetooth® device. In the app, you can tap on the Bluetooth® symbol to establish a connection between the laser and the smartphone. Please note that this connection must always be established via the app, not via the settings menu on your smartphone.
From Android 6.0 onwards, the Android operating system requires the location permission to be granted in order to be able to establish a connection with the levelling tool. Please provide authorisation for this if the app prompts you to do so. We do not receive any data about your location.
If all permissions have been granted, please check that location services on your smartphone have been enabled. Depending on the operating system, a Bluetooth® connection to our levelling tools is only possible when the location services are enabled, even if the location permission has already been granted.
No. It can only control one tool at a time.
The typical range is approximately 10 m (30 ft), depending on the on-site conditions (obstacles, sunlight, etc.). In optimum conditions, the range can be up to approximately 30 m (100 ft).
If the tool has been connected to the app before, it will be automatically detected when it is reconnected as long as the app is open on the smartphone, Bluetooth® is activated on both devices and the devices are within range.
The explanation of each symbol appears when you tap on the respective symbol.
This function allows you to adjust the settings on your rotary laser. Depending on the connected tool, the following functions can be used:
- Sleep mode: Places the tool in sleep mode to save energy
- Slope setting: Sets the incline of the axis/axes
- ADS: Switches the shock-warning function on/off
- Mask mode: Switches on partial projection
- Sweep angle: Selects line or point operation
- RPM: Selects the speed for rotational operation
- Plumb down: Activates the downwards plumb point function
You can use the save symbol to save the rotary laser settings in profiles so that these can be quickly applied when needed. Up to 10 profiles can be created.
The "uCal" function can be used to check the accuracy of the rotary laser, with any potential deviations directly corrected according to their characteristics. For this purpose, the rotary laser must be connected to the receiver.
This function can be used to lock the keys on your rotary laser in order to prevent unauthorised access by third parties. The keypad lock can be deactivated via the app, a key combination on the tool or by restarting the rotary laser.
Any Bosch 18V Li battery except 12.0 Ah
4 x D cells with the BA 1 alkaline adapter (included in scope of delivery).
The device is dustproof and can survive continuous immersion in water beyond a depth of 1 m.
ADS is active by default and monitors the tool position continuously. If the tool is moved, the head stops rotating and the disturbance ADS alarm is activated. Check the position of the laser and restart it.
A higher rotation speed is optimal for use with the receiver (outdoors) and a lower speed for the visibility (indoors) of the laser.
In line operation, the variable laser beam moves within a limited aperture angle. This increases the visibility of the laser beam in comparison to rotational operation.
In vertical mode, the laser point can be aligned vertically for plumb applications. This function is available through the remote control and the Levelling Remote app
The laser projects a plane that is inclined in two axes simultaneously so that water can drain to one point, for example when building parking areas.
Dial-in slope means that a slope value is directly entered and shown on a screen (on the unit, receiver, remote or app)
The self-levelling of the GRL can be turned off if an inclination greater than 8.5% is needed. This can be achieved by activating the level-off mode and tilting the device. The slope % won't be shown on the screen anymore (manual slope). To indicate that the unit is not levelled the X and/or Y status will be shown as "level-off" and the LED will be red.
During sleep mode all settings are saved and the app connection is maintained, while after turning off, all functions are set back to default.
If the rotary laser has been dropped or if the storage or operating temperature has been exceeded (see specifications), an accuracy check should be performed before beginning any job. In addition, if the accuracy deviation is outside the maximum permitted limit, perform a calibration (uCal) or have the laser tool checked by a Bosch service centre.
When delivered in the scope of supply of your rotary laser, the receiver and remote will be paired to the GRL. If you need to pair another receiver or remote:
- Long press the Bluetooth button on the GRL until the pairing with receiver/remote screen appears
- To pair a receiver – long press the X and Y button on the receiver simultaneously. Release the buttons once the pairing screen appears on the receiver.
- To pair a remote – long press the "clockwise" and "anticlockwise" button on the remote simultaneously. Release the buttons once the LEDs on the remote start blinking alternately.
- A confirmation (or an error) will be shown on the screen
The X and Y LEDs indicate the respective axis status. Green indicates self levelling (slope = 0%), red indicates slope set or level-off/manual mode
To enter the receiver menu, briefly press the X and Y button simultaneously. Within the menu, you can change the units of measure, adjust the brightness or turn off the LEDs, turn off and on the Memory function, and turn off and on the backlight of the receiver display. To toggle between the different settings, use the X (up) and Y (down) button, and use the centre line button to confirm.
The rough modes are recommended when a high precision level is not required. In this case, you can quickly position the receiver.
Use the centre line function for automatic positioning of the laser beam on the centre of the receiver.
- To activate the centre line function in the X axis, press the "centre line button" (or the centre line + "X" button simultaneously) on the LR 60. Make sure the LR 60 is positioned perpendicular to the tool along the X axis of the GRL.
- To activate the centre line function in the Y axis, press the "centre line button" + the "Y" button simultaneously. Make sure the LR 60 is positioned perpendicular to the tool along the Y axis of the GRL.
- TTo activate the centre line function in both axes, use two receivers – one along the X axis and one along the Y axis
The GRL will automatically position the laser beam on the centre of the LR 60. Once complete, the slope value (in %) will be indicated on the display of the GRL and in the app.