1. Introduction
The UNI-T LM series laser rangefinders are advanced optical instruments designed for precise distance, height, angle, and speed measurements. These devices feature a built-in rechargeable lithium battery, offering long standby times and extended usage cycles. Equipped with a 6 optical observation system and high-definition coated lenses, they provide clear images even in challenging light conditions.
Key features include:
- Built-in rechargeable lithium battery (1500mAh)
- 7x optical magnification
- Naked eye observation
- Accurate positioning and height measurement angle
- High-definition coating for clear optics
- Electronic Compass Technology for high accuracy and stability of angle measurement
- Intelligent protection
- Eye-safe pulsed laser with low power emission
- Diopter adjustment function
- Waterproof and dustproof (Grade 2)
- Silent operation and automatic power-off system
These rangefinders are versatile and suitable for a wide range of applications, including hunting, forestry mapping, nautical use, power industry inspections, golf, outdoor exploration, and animal investigation.
2. Product Components and Setup
2.1 Package Contents
Your UNI-T LM series rangefinder package should include:
- Color box
- Cleaning cloth
- Instruction manual
- Protective bag
- LM series rangefinder unit
- USB Charger Cable
- Lanyard
2.2 Device Overview
2.3 Charging the Device
The LM series rangefinders are equipped with a rechargeable 1500mAh Li-ion battery. To charge, connect the provided USB cable to the charge jack on the device and a suitable USB power source. The charge indicator will show the charging status.
2.4 Adjusting Focus
The objective lens can be rotated to adjust the focus length, making it suitable for various eyesight conditions. Rotate the eyepiece until the view is clear.
3. Operating Instructions
The UNI-T LM series rangefinders offer multiple measurement functions including height, distance, angle, and speed. The device features a power/measurement button and a mode button on the top.
3.1 Basic Measurement (Distance, Height, Angle)
To perform a basic measurement, aim the device at the target and short press the measurement button. The device will display the angle, actual distance, and vertical and horizontal distances. The new measurement mode allows simultaneous display of height, distance, and angle.
3.2 Continuous Measurement (Scan Mode)
For continuous measurement, short press the mode button to switch to the continuous measurement mode. 'SCAN' will appear on the upper left of the lens. Long press the measurement key to start continuous measurement, and the instrument will display the measurement distance, altitude, and angle in real-time as you scan across targets.
3.3 Speed Measurement
First, switch to the speed measurement function using the mode button. Short press the measurement key and follow the moving object. The instrument will display the object's movement speed in real-time. Note that speed measurement is for reference only.
3.4 Golf Trajectory Correction
This function helps calculate golf advice and batting distance. The range value (AB) and slope value (<±20°) are used in the golf flight trajectory equation to provide corrected distances.
3.5 Pulse Measurement
The device utilizes pulse measurement technology, ensuring accurate readings even in bright light conditions.
4. Maintenance
To ensure the longevity and optimal performance of your UNI-T LM series laser rangefinder, follow these maintenance guidelines:
- Cleaning: Use the provided cleaning cloth to gently wipe the lenses and exterior of the device. Avoid using abrasive materials or harsh chemicals.
- Storage: Store the device in its protective bag when not in use to prevent scratches and dust accumulation. Keep it in a dry, cool place away from direct sunlight and extreme temperatures.
- Water and Dust Resistance: The device has a waterproof and dustproof rating of Grade 2. While it offers some protection against splashes and dust, avoid submerging it in water or exposing it to heavy rain.
- Battery Care: Recharge the battery regularly, even if the device is not used frequently, to maintain battery health. Avoid completely draining the battery for extended periods.
5. Troubleshooting
If you encounter any issues with your UNI-T LM series laser rangefinder, refer to the following common troubleshooting tips:
- Device does not power on: Ensure the battery is sufficiently charged. Connect the device to a power source using the USB cable and check the charge indicator.
- Inaccurate measurements:
- Verify that the target is within the specified measurement range of your model.
- Ensure a clear line of sight to the target, free from obstructions.
- Hold the device steady during measurement. Using a tripod (via the tripod spiral hole) can improve accuracy for long distances.
- Check that the correct measurement mode is selected for your application.
- Unclear display/view: Rotate the objective lens (eyepiece) to adjust the focus until the image appears sharp and clear.
- No laser emission: Ensure the device is powered on and the measurement button is pressed correctly. If the issue persists, the device may require servicing.
For persistent issues not resolved by these steps, please contact customer support.
6. Specifications
| Category | Specification | Value |
|---|---|---|
| Brand Name | UNI-T | |
| Model Numbers | LM600, LM800, LM1000, LM1200, LM1500 | |
| Range (LM600) | 4-600m | |
| Range (LM800) | 4-800m | |
| Range (LM1000) | 4-1000m | |
| Range (LM1200) | 4-1200m | |
| Range (LM1500) | 4-1500m | |
| Measurement Accuracy | ±1m | |
| Magnification | 7X | |
| Objective Caliber | 25mm | |
| Max Height Measurement | 250m (LM600) to 600m (LM1500) | |
| Angle Range | ±60° | |
| Height Error | ±0.5m | |
| Laser Hazard Level | Class 1 (<1mW) | |
| Power Type | Battery-Powered (Rechargeable) | |
| Battery Included | Yes | |
| Power | 1500mAh 3.7V Li-ion, micro USB | |
| Product Color | Red and grey | |
| Product Net Weight | 230g | |
| Product Size | 114mm × 76mm × 48mm | |
| Operation Temperature | -10°C ~ 60°C | |
| Certification | CE |
7. User Tips
- For optimal clarity, always adjust the eyepiece focus to match your eyesight before taking measurements.
- When measuring moving objects for speed, remember that the displayed speed is for reference only.
- The high-definition coated lenses provide clear images; keep them clean with the provided cloth to maintain optical performance.
- The device's 6 optical observation system and advanced laser technology ensure accurate measurements, with an error of up to ±1m.
8. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official UNI-T website. Keep your proof of purchase for any warranty claims.
