1. Introduction
The Bosch GLM 50-23G Professional is a robust 2-in-1 laser measure designed for demanding job sites. It features a green laser for enhanced visibility and an integrated 360° tilt sensor for versatile angle and inclination measurements. Its intuitive user interface, high-end color display, and dedicated favorite button ensure convenient handling for various professional applications.
2. Safety Information
Please read and understand all instructions before using the device. Failure to follow these instructions may result in hazardous laser radiation exposure, electric shock, fire, and/or serious injury.
- Laser Class: This device is a Class 2 laser product (<1mW).
- Eye Protection: Do not stare directly into the laser beam. Avoid direct eye exposure to the laser.
- Children: Keep the device out of reach of children.
- Modifications: Do not attempt to modify the laser device. Unauthorized modifications may result in hazardous radiation exposure.
- Environment: Use the device in a safe environment, away from flammable materials.
3. Product Overview
The GLM 50-23G features a durable design with a green laser for optimal visibility. Its user-friendly interface includes a high-resolution color display and tactile buttons for easy navigation and function selection.
Key Features:
- Green Laser Technology for improved visibility.
- Integrated 360° Tilt Sensor for angle and inclination measurements.
- IP 65 Dust and Splash Protection.
- Shock-absorbing rubber casing for enhanced durability.
- Intuitive User Interface with color display and help function.
- Customizable Favorite Button for quick access to frequently used functions.
4. Setup
4.1. Unpacking
Upon receiving your Bosch GLM 50-23G, please ensure all components are present:
- 1 x GLM 50-23G Professional Laser Measure
- 1 x Instruction Manual
- 1 x Package Box
4.2. Battery Installation
The GLM 50-23G is powered by 2 x 1.5 V LR6 (AA) batteries. It also supports a dual power source system, allowing for flexibility in power options.
- Locate the battery compartment cover on the back of the device.
- Open the battery compartment cover.
- Insert two 1.5 V LR6 (AA) batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
5. Operating Instructions
The GLM 50-23G features an intuitive user interface. Use the navigation buttons to select functions and the green measurement button to initiate measurements.
5.1. Power On/Off
- To power on, press the green measurement button.
- The device will automatically deactivate after 5 minutes of inactivity to conserve battery life.
5.2. Basic Length Measurement
- Point the laser measure at the target.
- Press the green measurement button once to activate the laser.
- Press the green measurement button again to take a measurement. The result will be displayed on the screen.
5.3. Angle / Inclination Measurement
The integrated 360° tilt sensor allows for easy angle and inclination measurements.
- Navigate to the inclination measurement function using the 'Func' button.
- Place the device on the surface you wish to measure the angle of.
- The angle will be displayed in real-time on the screen.
5.4. Area and Volume Calculation
The device can calculate area and volume based on sequential length measurements.
- Select the Area or Volume function using the 'Func' button.
- Follow the on-screen prompts to take the necessary length measurements (e.g., length, width, height).
- The calculated area or volume will be displayed.
5.5. Using the Favorite Button
The dedicated favorite button allows for quick access to a pre-set measuring function.
- To set a favorite function, navigate to the desired function and hold down the favorite button (star icon) until it is saved.
- Once set, simply press the favorite button to instantly access that function.
5.6. Product Video
6. Maintenance and Care
The Bosch GLM 50-23G is designed for durability with IP 65 dust and splash protection and a shock-absorbing rubber casing.
- Cleaning: Wipe the device with a soft, damp cloth. Do not use harsh cleaning agents or solvents.
- Storage: Store the device in a dry, dust-free environment when not in use. Remove batteries if storing for extended periods.
- Lens Care: Keep the laser exit and reception lenses clean to ensure accurate measurements. Use a soft cloth or cotton swab for cleaning.
7. Troubleshooting
If you encounter issues with your GLM 50-23G, please refer to the following common problems and solutions:
- Device does not turn on: Check battery installation and ensure batteries are not depleted. Replace if necessary.
- Inaccurate measurements: Ensure the laser lens is clean and unobstructed. Verify that the measurement reference point is correctly set.
- Laser beam not visible: The green laser is highly visible, but in extremely bright conditions or over very long distances, visibility may decrease. Ensure you are within the specified measurement range.
- Display issues: If the display is frozen or unresponsive, try removing and reinserting the batteries to perform a soft reset.
For persistent issues, contact Bosch customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Measurement time, typical | < 0.5 s |
| Units of measurement | m/cm, ft/inch |
| Laser diode | 515 nm, < 1 mW |
| Measurement range | 0.05 – 50.00 m |
| Laser class | 2 |
| Measurement accuracy, typical | ± 1.5 mm* (*plus use-dependent deviation) |
| Measurement range of incline measurement | 0 – 360° (4 x 90°) |
| Measuring accuracy (typical) | ± 0.2°* (*plus use-dependent deviation) |
| Measurement time, max. | 4 s |
| Power supply | 2 x 1.5 V LR6 (AA) |
| Automatic deactivation | 5 min |
| Weight, approx. | 0.2 kg |
| Memory capacity (values) | 30 |
| Dust and splash protection | IP 65 |
| Tripod thread | 1/4" |
| Laser colour | Green |
| Size | 119 x 53 x 29 mm |
9. User Tips
- Accessories: The standard package includes the GLM 50-23G unit, a manual, and a package box. A belt pouch is not typically included with this model, so consider purchasing one separately for convenient carrying and protection on job sites.
- Visibility: The green laser offers superior visibility compared to red lasers, especially in brighter conditions. However, for very long distances or extremely bright outdoor environments, using a laser target plate can further enhance visibility and accuracy.
- Battery Life: Always carry spare AA batteries, especially for prolonged use on job sites, to avoid interruptions.
- Reference Point: Pay attention to the measurement reference point setting (front, rear, or tripod thread) to ensure accurate results for different measurement scenarios.
10. Warranty and Support
For warranty information and customer support, please refer to the official Bosch website or contact your local Bosch service center. Keep your purchase receipt as proof of purchase for any warranty claims.
