1. Introduction
The CIGMAN CD-120G is a versatile and durable laser measurement tool designed for precise distance, area, and volume calculations. Featuring a 4X digital camera, P2P technology, and an IP68 rating, it is suitable for both indoor and challenging outdoor environments. This manual provides essential information for the safe and effective operation of your device.

Figure 1: CIGMAN CD-120G Laser Measurement Tool and included accessories.
2. Package Contents
Please check the package contents upon receipt to ensure all items are present:
- 1 x Laser Measurement Tool (CD-120G)
- 1 x Charging Cable (Type-C)
- 1 x Portable Bag
- 1 x Lanyard
- 1 x User Manual
3. Device Overview and Setup
3.1. Charging the Device
The CD-120G is equipped with a 3.7V 2000mAh Lithium Battery. Before first use, ensure the device is fully charged.
- Connect the provided Type-C charging cable to the device's charging port and a compatible DC5V 1A power adapter (not included).
- A full charge typically takes approximately 3 hours.
- The battery indicator on the display will show charging status.
- A fully charged battery supports up to 5500 measurements.

Figure 2: Charging the CD-120G via its Type-C port.
3.2. Key Features Overview
Familiarize yourself with the main features of the CD-120G:
- 4X Viewfinder: Integrated digital camera with crosshairs for accurate outdoor targeting.
- 2.4" IPS Display: Large, backlit color screen for clear readings in various lighting conditions.
- Green Laser Technology: Provides enhanced visibility, especially outdoors, compared to red lasers.
- IP68 Protection: Dustproof and waterproof up to 1.2 meters depth, ensuring durability in harsh environments.

Figure 3: Key features of the CD-120G.
4. Operating Instructions
4.1. Power On/Off
- To power on, press the MEAS button.
- To power off, press and hold the OFF/CLEAR button.
4.2. Unit Switching
The device supports multiple units of measurement. To switch between units:
- Press the FUNC button repeatedly until the desired unit is displayed.
- Available units include: 0.000m, 0.00m, 0.00ft, 0.0in, 1/32in, 0'00".

Figure 4: Unit switching options on the CD-120G.
4.3. Digital Point Finder (4X Camera)
The integrated 4X digital camera with on-screen crosshairs allows for precise targeting, especially useful for outdoor measurements or when the laser dot is difficult to see.
- The camera view is displayed on the 2.4" IPS screen.
- Use the crosshairs to accurately align the measurement point.
- This feature significantly improves accuracy and ease of use in bright conditions.

Figure 5: Using the 4X digital zoom viewfinder for accurate outdoor measurements.

Figure 6: Precise aiming up to 120m using the laser and viewfinder.
4.4. P2P Measurement Technology
Point-to-Point (P2P) technology allows you to measure distances between any two points from a single location, eliminating the need to physically access both points. This is particularly useful for measuring heights or distances in complex environments.
- Mount the device on a 1/4" tripod (sold separately) for stability.
- Select the P2P measurement mode.
- Aim the laser at the first point (P1) and take a measurement.
- Aim the laser at the second point (P2) and take a measurement.
- The device will calculate and display the distance between P1 and P2.

Figure 7: P2P measurement in action, measuring distance between two points on a building.

Figure 8: P2P Technology helps measure distances in high or low areas without climbing.
4.5. Multi-functional Measurement Modes
The CD-120G offers a wide range of measurement functions for various applications:
- Area Measurement
- Volume Measurement
- Wall Area Measurement
- Camera Area Measurement
- Pythagorean Theorem (single and double)
- Triangle Area Measurement
- Trapezium Area Measurement
- Section Measurement
- Staking-out Function
- Slope Measurement
- Height Tracking
- Azimuth Measurement
- Level Bubble
- Circle Area Measurement
- Cylindrical Volume Measurement
These functions make the tool suitable for interior decoration, carpentry, construction site work, and house acceptance inspections.

Figure 9: Overview of multi-functional measurement modes.

Figure 10: Wide applications for the CD-120G in construction and renovation.
4.6. Virtual Tape Measurement
The virtual tape measurement feature provides a visual representation of measurements, similar to a traditional tape measure, directly on the display. This can be helpful for quick visual checks and estimations.

Figure 11: Virtual tape measurement display.
4.7. Adaptive Rotating Screen
The 2.4-inch IPS display features an adaptive rotating screen. This means the display orientation adjusts automatically, ensuring measurements are always upright and easy to read, regardless of how the device is held.

Figure 12: Adaptive rotating screen for comfortable reading.
5. Maintenance and Care
- Cleaning: Use a soft, damp cloth to clean the device. Do not use abrasive cleaners or solvents. Ensure the lens and display are kept clean for optimal performance.
- Storage: Store the device in its portable bag in a cool, dry place when not in use. Avoid extreme temperatures and direct sunlight.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in constant use.
- Durability: The CD-120G is designed with high-strength ABS-wrapped body and metal components for superior shock absorption. Its IP68 rating ensures resistance to dust and water immersion up to 1.2 meters.

Figure 13: The CD-120G's IP68 protection against water and dust.
6. Troubleshooting
6.1. Common Issues
- Device not powering on: Ensure the battery is charged. Connect to the Type-C charger and try again.
- Inaccurate measurements:
- Ensure the laser lens is clean.
- Verify the measurement reference point (front, rear, or tripod mount).
- For long distances or bright conditions, use the 4X digital viewfinder for precise targeting.
- Ensure the device is stable, especially for P2P measurements (use a tripod).
- Laser dot not visible: In very bright conditions or over long distances, the laser dot may be hard to see. Use the 4X digital viewfinder to locate the target.
6.2. Laser Safety
The CIGMAN CD-120G is a Class 2 laser product (<1mW power output, 500-800nm wavelength). Observe the following safety precautions:
- Do not stare directly into the laser beam.
- Do not aim the laser beam at people or animals.
- Avoid aiming the laser beam at reflective surfaces, as reflected beams can also be hazardous.
- Keep the device out of reach of children.

Figure 14: Green Laser Technology for improved visibility.
7. Specifications
| Category | Specification |
|---|---|
| Brand | CIGMAN |
| Model | CD-120G |
| Working Range | 0.05-120m / 0.16-393ft |
| Precision | ±(2mm + d * 1/10000) |
| Display Screen | 2.4" IPS color screen |
| Laser Type & Class | 500-800nm, Class II (<1mW) |
| Angle Range | ± 90° |
| Angle Accuracy | ± 1° |
| Back Copper Nut | 1/4" copper nut (for tripod mounting) |
| Battery | 3.7V 2000mAh Lithium Battery |
| Charging | DC5V 1A Type-C |
| Product Weight | 0.45kg |
| Package Weight | 0.5kg |
| Package Size (L x W x H) | 19 x 12 x 6.5cm |

Figure 15: Detailed specifications of the CD-120G.
8. User Tips
- For highly accurate P2P measurements, always use a stable tripod.
- When measuring outdoors in bright sunlight, utilize the 4X digital viewfinder to ensure the laser is precisely aimed at the target.
- Regularly clean the display and laser lens to maintain optimal performance and readability.
9. Frequently Asked Questions (FAQ)
- Q: Does the CIGMAN CD-120G have Bluetooth connectivity?
- A: No, the CIGMAN CD-120G does not feature Bluetooth connectivity.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact information provided by your retailer or visit the official CIGMAN website. Keep your purchase receipt as proof of purchase.