Tools / Laser Measuring Tools
Hilti PM 20-CG Series Laser Level User Guide
Quick start guide for Hilti PM 20-CG, PM 20-CG A12, and PM 20-CGE laser levels. Learn how to operate slope and leveled modes, manage auto-off settings, and interpret leveling warnings.
Quick answers from the manual
Quick answer
- The Hilti PM 20-CG series laser levels feature selectable slope and leveled modes, an automatic shut-off after 1 hour, and visual warnings when the device is out of level. p. 1
Key actions
- Disable auto-off by holding the button for more than 4 seconds. p. 1
Problems and fixes
Laser flashes 3 times per second
The device is out of level. Adjust the device until it is level.
p. 1Technical specifications
| Parameter | Value | Meaning | Pages |
|---|---|---|---|
| Auto-off | 1 hour | Automatic power saving feature | p. 1 |
Where to find it in the PDF
- Operation and Features p. 1
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
This document provides visual instructions for the operation of the Hilti PM 20-CG, PM 20-CG A12, and PM 20-CGE laser levels. It covers basic mode selection, power management, and status indicators.
Operating modes
The device supports two primary operating modes:
- Slope mode: Used for non-level applications.
- Leveled mode: Used for standard leveling tasks.
Use the switch on the device to toggle between OFF, Slope mode, and Leveled mode.
Laser settings and auto-off
The laser level includes an automatic shut-off feature to conserve battery life:
- Auto-off: The device automatically turns off after 1 hour of inactivity.
- Disable auto-off: To keep the device on, hold the control button for more than 4 seconds.
Leveling warnings
The device provides visual feedback regarding its leveling status:
- Out-of-level: If the laser line flashes 3 times per second, the device is not level. Adjust the positioning of the unit until the flashing stops.
Mounting and accessories
The laser level is compatible with specific mounting accessories, such as the PMA 32 and PMA 31G. Ensure the device is securely mounted before operation to maintain accuracy.
Manufacturer information
Hilti Corporation
Practical help
Common problems
Laser line flashes 3 times per second
The device is out of level. Adjust the device position until it is level.
Before use
- Ensure the battery is charged (compatible with PMA 32/PMA 31G).
- Check that the device is mounted securely.
- Select the appropriate mode (Slope or Leveled) using the switch.
Images and diagrams
- The switch icon shows the transition between OFF, Slope mode, and Leveled mode.
- The clock icon indicates the 1-hour auto-off timer.
- The flashing laser icon indicates an out-of-level warning.
Model compatibility
- Compatible with PMA 32 and PMA 31G accessories.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.