UT387LM - Mètre Uni-T - Free user manual and instructions
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| Product Type | Laser Distance Meter |
| Brand | Uni-T |
| Model | UT387LM |
| Measuring Range | 0.05 - 50 m |
| Measuring Accuracy | ±1.5 mm (typical) |
| Display Resolution | 1 mm |
| Laser Class | Class 2 (630-670 nm, <1 mW) |
| Units | m / ft / in |
| Functions | Single distance, continuous measurement, area, volume, Pythagoras (indirect height) |
| Memory | Up to 30 measurements |
| Backlight | Yes, with auto-off |
| Auto Shut-off | After 3 minutes of inactivity |
| Power Supply | 2 x AAA batteries (1.5 V) |
| Battery Life | Up to 5000 measurements |
| Dimensions (H x W x D) | 120 x 50 x 30 mm |
| Weight (including batteries) | Approx. 150 g |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -20°C to 60°C |
| Cleaning | Wipe with a soft, dry cloth. Do not use solvents. |
| Safety | Do not stare into laser beam. Avoid contact with eyes. |
| Spare Parts / Repairability | No user-serviceable parts. Contact Uni-T service center. |
Frequently Asked Questions - UT387LM Uni-T
How do I turn on the UT387LM?
Press and hold the power button for about 2 seconds until the display lights up. The device will then be ready for measurement.
How do I change units from meters to feet?
Press the unit button repeatedly to cycle through m, ft, and in. The current unit will be displayed on the screen.
The laser is not turning on. What should I do?
Check if the batteries are inserted correctly and have enough charge. Replace with new AAA batteries if necessary. Also ensure the device is turned on.
How accurate is the UT387LM?
The typical accuracy is ±1.5 mm for distances up to 10 m and ±2.5 mm for distances above 10 m. Accuracy may vary under strong sunlight or when measuring to rough surfaces.
Can I measure through glass?
No, the laser cannot penetrate glass effectively. The measurement will be incorrect. Always measure against a solid, non-reflective surface.
How do I clean the lens?
Use a soft, dry cloth to gently wipe the laser lens. Do not use any liquids or abrasive materials, as they may damage the lens.
The display shows 'Error'. What does that mean?
An 'Error' message usually indicates a problem with the measurement, such as too much ambient light, target too far or too close, or a faulty sensor. Try measuring again in better conditions.
How do I recall stored measurements?
Press the memory button to enter recall mode. Use the up/down arrows to scroll through stored values. The device can store up to 30 measurements.
Is the laser safe for eyes?
The UT387LM uses a Class 2 laser (<1 mW at 630-670 nm). It is safe for accidental exposure but avoid staring directly into the beam.
What should I do if the device gets wet?
Immediately turn off the device, remove the batteries, and dry it with a soft cloth. Let it air dry completely before using again. If it does not work afterward, contact support.
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