SLGRF30BK - Rangefinder SereneLife - Free user manual and instructions
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| Product Type | Laser Rangefinder |
| Brand | SereneLife |
| Model | SLGRF30BK |
| Max Measuring Distance | 800 yards (731 m) |
| Measurement Accuracy | ±1 yard |
| Magnification | 6x |
| Objective Lens Diameter | 22 mm |
| Display | LCD with backlight |
| Measurement Units | Yards / Meters (switchable) |
| Scan Mode | Yes |
| Flag Lock (PinSeeker) | Yes |
| Slope Adjustment | Yes |
| Battery Type | 1 × CR2 (3V) Lithium |
| Battery Life | Up to 5000 measurements |
| Dimensions | 120 × 75 × 45 mm |
| Weight | 180 g |
| Water Resistance | IPX4 splash-proof |
| Operating Temperature | -10°C to 50°C |
| Accessories Included | Carrying case, cleaning cloth, wrist strap |
| Recommended Use | Golf, hunting, outdoor observation |
| Cleaning | Wipe lens with dry microfiber cloth |
| Safety | Class 1 laser; avoid direct eye exposure |
| User-Repairable Parts | Battery compartment (battery replacement) |
| Certifications | CE, FCC |
| Operation | Single push-button control |
Frequently Asked Questions - SLGRF30BK SereneLife
How do I measure the distance with the SereneLife SLGRF30BK?
Aim the device at your target using the viewfinder, then press the power button to activate the laser. Hold the button for continuous scan mode, or press once to lock the distance value on the LCD display.
Can I switch between yards and meters?
Yes. The device offers yards and meters measurement units. To switch, press and hold the mode button (usually located near the display) for about 3 seconds until the unit indicator changes.
What type of battery does the SLGRF30BK use and how often should I replace it?
It uses a single CR2 3V lithium battery. With normal use, the battery lasts for approximately 5000 measurements. When the display dims or the device fails to power on, replace the battery by opening the compartment on the side.
Is the rangefinder waterproof?
The device is rated IPX4, meaning it is splash-proof and can withstand light rain, but it cannot be submerged in water. Avoid using it in heavy storms.
Can I measure distances through glass or other transparent objects?
No. Laser rangefinders rely on reflection from surfaces. Transparent materials like glass will cause inaccurate readings or no reading at all. Always point directly at solid targets.
What is the maximum measuring range of this device?
The maximum range is 800 yards to highly reflective objects, while non-reflective surfaces such as trees, flags, or clothing are typically measurable up to 200 yards. Performance depends on light conditions and target size.
How should I clean and maintain the lens?
Use only the supplied microfiber cleaning cloth to gently wipe the lens and display. Do not use compressed air, paper towels, or chemical cleaners. Store the device in the included carrying case when not in use.
Is the laser safe for my eyes?
Yes. The SLGRF30BK emits a Class 1 laser that is considered safe for standard use. However, you should never intentionally aim the laser beam into anyone's eyes or look directly into the lens while it is active.
Why isn't my rangefinder turning on?
First, check that the CR2 battery is correctly installed with the polarity matching the diagram inside the compartment. If the battery is old or depleted, replace it with a new one. If the issue persists, contact SereneLife support.
Can I replace broken parts myself?
The battery and battery cover are the only components intended for user replacement. The lens and internal electronics are factory-sealed and should only be serviced by authorized technicians to avoid damage and preserve safety.
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USER MANUAL SLGRF30BK SereneLife
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Product information
Brand : SereneLife
Model : SLGRF30BK
Category : Rangefinder