How to Use a Laser Distance Meter: Step-by-Step UK Guide

A laser distance meter (also called a laser measure or electronic distance meter) replaces the stretch-and-read routine of a traditional tape with a single button press. Whether you are a tradesperson quoting a job, a surveyor checking a boundary, or a DIYer planning a kitchen refit, learning the correct technique takes ten minutes and saves hours on every project.

UK renovators who switch from tape to laser consistently report the biggest gain when working alone — no more walking back and forth to hold the end of a tape, no more sag on long spans, and no more guessing when the hook slips. This guide walks through setup, targeting, reading the display, and the mistakes that cause inaccurate results on British job sites.

What You Need Before You Start

Most handheld laser distance meters, including the CIGMAN 120m laser measure, ship with the tool itself, a wrist strap, a USB Type-C charging cable, and a quick-start card. Optional but useful extras:

Reflective target plate — essential for outdoor measurements beyond 20m or in bright conditions
Small tripod or flat surface — keeps the laser stable for precision work
Notebook or phone — to log stored readings if your model supports memory functions

The CIGMAN 120m model measures 115 × 50 × 28 mm and weighs 125g, so it fits a tool belt or coat pocket without bulk.

Step 1: Charge and Power On

Connect the USB Type-C cable to any standard phone charger, laptop port, or van USB socket. The integrated 850mAh lithium-ion battery supports up to 8,000 measurements on a full charge — enough for several weeks of daily site use. Press the power button; the LCD backlight should activate within a second. If the display shows a battery icon, charge for 30 minutes before critical work.

Step 2: Choose Your Measurement Mode

Most modern laser measures offer several modes accessible via a mode button:

Single distance — point, press measure, read the result (metres or feet)
Continuous measurement — live updating distance as you sweep across a surface
Area — measure length then width; the tool calculates square metres automatically
Volume — add height for room volume (useful for HVAC and plaster estimates)
Pythagoras — indirect height measurement using two ground-level readings (ideal for building heights you cannot reach directly)

Start with single distance until you are confident with targeting, then explore area and volume for faster quoting.

Step 3: Target Correctly

Accuracy depends more on targeting technique than on the tool itself. Follow these rules:

Hold steady — rest your wrist against a wall or use a tripod for distances over 10m
Aim at a flat, opaque surface — plasterboard, brick, timber, or a reflective target plate. Avoid glass, polished metal, and wet surfaces
Keep the laser dot visible — if you cannot see the red dot, you cannot verify your aim. In bright outdoor sun, attach the reflective target plate and measure to that instead of the far wall
Measure perpendicular — the laser should hit the surface at roughly 90 degrees. Angled shots add error

The CIGMAN 120m laser measure delivers ±2.0mm accuracy across its 0.05m to 120m range — matching the professional standard quoted by premium brands — provided you follow the targeting rules above.

Step 4: Take the Reading

Press the measure button once. The distance appears on the LCD within half a second. The reading typically starts from the back of the device (rear reference) or the front edge (front reference) — check your manual for which reference point your model uses, as this affects short measurements by the length of the tool body.

For the CIGMAN 120m model, the rear reference is standard: place the back of the unit against a wall, aim at the opposite wall, and the displayed distance is the room width. No mental arithmetic required.

Step 5: Store and Calculate

Press the memory button to save a reading, then take additional measurements. Use area mode to multiply two stored lengths, or volume mode for three dimensions. This is where laser tools dramatically outperform tapes — a kitchen floor area that takes five minutes with a tape and calculator takes fifteen seconds with area mode.

Common Mistakes and How to Avoid Them

Measuring in direct sunlight without a target plate

All laser distance meters struggle when the red dot disappears in bright midday sun. UK tradespeople working on scaffolding or open ground should always carry a reflective target. Measure to the plate, not the distant surface.

Forgetting the reference point

On short measurements under 300mm, the offset between front and rear reference can matter. Consistency is key — always use the same reference edge.

Measuring through glass or mesh

The laser may reflect off the near surface of a window rather than the building beyond it. Open the window or measure from outside.

Ignoring the minimum range

The CIGMAN 120m model has a minimum range of 0.05m (50mm). For smaller gaps, use a steel rule or vernier caliper.

When a Laser Measure Beats a Tape (and When It Does Not)

Use a laser distance meter for: room dimensions, ceiling heights (via Pythagoras), long outdoor spans, area and volume calculations, and any measurement where you are working alone.

Keep a tape measure for: curved surfaces, measurements under 50mm, and situations where you need a physical mark on a surface rather than a number on a screen.

Many UK trades carry both — but report reaching for the laser first on 80% of daily tasks once they adapt.

Maintenance and Storage

Wipe the laser exit lens with a dry microfibre cloth if dust accumulates — a dirty lens scatters the beam and reduces range. Store in the included pouch or a dry tool box; avoid leaving the unit in a hot van for extended periods. Recharge via USB Type-C whenever the battery icon appears; there is no memory effect on modern lithium cells.

Ready to Start Measuring?

The CIGMAN 120m laser distance meter gives you 120m range, ±2mm accuracy, USB Type-C charging, and area/volume/Pythagoras modes — currently £79.99 with free UK next-day delivery, 30-day free returns, and a 2-year manufacturer warranty.

Shop CIGMAN 120m Laser Measure — £79.99

Frequently Asked Questions

How accurate is a laser distance meter for home use?

A quality handheld model like the CIGMAN 120m delivers ±2.0mm accuracy — more than sufficient for fitting kitchens, flooring, and shelving. Errors usually come from poor targeting, not the tool.

Can I use a laser measure outdoors in the UK?

Yes, but bright direct sunlight reduces dot visibility. Use a reflective target plate for outdoor measurements, especially beyond 20m. Overcast days pose no problem.

Do I need training to use a laser distance meter?

No formal training is required. Read the quick-start guide, practise five single-distance measurements indoors, then try area mode. Most users are confident within one hour.