Ditch the Tape: Master Every Measurement with 100M Precision
The professional Electronic Distance Meter designed for serious UK DIYers and tradespeople.
RockSeed
A high-precision 100m laser measure tool featuring dual bubble levels, 5-in-1 measurement modes, and data storage for professional results.
Professional Precision at Your Fingertips
Stop struggling with metal tapes that bend and snap. The RockSeed 100M Electronic Distance Meter provides instant, pinpoint accuracy up to 100 metres (328ft). Whether you are surveying a new build, estimating flooring for a Victorian terrace, or hanging kitchen cabinets, this tool delivers ±2mm accuracy in a fraction of a second.
Versatile 5-in-1 Functionality
This isn't just a distance meter; it's a complete measurement suite. Switch easily between single distance, area calculation, volume measurement, and continuous measurement. It even features the Pythagorean indirect mode, allowing you to calculate heights (like a chimney stack) from the safety of the ground. With the ability to switch between Meters, Inches, and Feet, it caters to every UK measurement preference.
Built for the British Worksite
Rugged, compact, and IP54-rated for dust and splash resistance, the RockSeed measure is designed for real-world use. The dual bubble levels ensure your device is perfectly level for the most accurate readings possible, while the backlit LCD screen ensures you can read your data in dimly lit lofts or bright conservatories. Store up to 20 readings on the device to eliminate manual note-taking errors.
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Precision Guarantee
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What Our UK Customers Say
Absolutely brilliant for surveying old tenements. The 100m range is overkill for most rooms, but it's incredibly fast and much more reliable than my old Toolstation budget buy.
Alistair Vaughan, Edinburgh
The Pythagorean mode is a game changer for estimating guttering jobs. I can measure the height of a house from the pavement. Saves me so much time on quotes.
Sanjay Gupta, Birmingham
Great bit of kit for the price. Only minor gripe is the beep is quite loud, but you can turn it off. Accuracy is spot on compared to my Leica.
Gareth Evans, Cardiff
Used this for a full kitchen renovation. The area function made ordering floor tiles so easy-no more over-ordering and wasting money at B&Q!
Sarah Jenkins, Bristol
Solid build quality. I've dropped it once on a concrete floor and it's still working perfectly. The backlit screen is essential for dark loft conversions.
Mark Thompson, Manchester
Very accurate for internal measurements. It struggles a bit in very bright direct sun in the garden, but that's expected for this price point. Excellent value overall.
Dr. Ian Moore, London
Free UK Delivery
Fast tracked shipping from our UK warehouse
2-Year UK Warranty
Full peace of mind with local support
100M High-Precision
Accurate to ±2mm over a massive 328ft range
5-in-1 Measuring
Area, Volume, Distance & Pythagorean modes
User Guide
- Insert 2x AAA batteries and press the 'READ' button to power on.
- Press the 'UNIT' button to toggle between meters, feet, and inches.
- Align the base or top of the device (adjustable) with your starting point.
- Press 'READ' to activate the laser, aim at your target, and press again to take the measurement.
- Use the 'MODE' button to cycle through Area (Square), Volume (Cube), or Pythagorean (Triangle) calculations.
- Press the 'Storage' button to review your last 20 saved readings.
Trusted by UK Tradespeople & Home Renovators
Measurement FAQ
At RockSeed, we believe that precision shouldn't be a luxury reserved for multi-national construction firms. Based in the UK, we've seen first-hand how traditional tape measures lead to costly material miscalculations and project delays. Our mission is to equip every British homeowner, surveyor, and decorator with the 'Pro-sumer' tools they need to work smarter, not harder.
Our flagship electronic distance meters are engineered to withstand the rigours of an active UK building site while remaining intuitive enough for a weekend DIY project. By focusing on essential professional features-like 100m ranges, Pythagorean indirect measuring, and robust data storage-we provide the functionality of high-end brands like Bosch or Leica without the premium price tag.
We are committed to quality and compliance, ensuring all our laser tools meet strict CE and RoHS standards. When you choose RockSeed, you aren't just buying a tool; you're investing in the confidence that every measurement is spot-on, every time. From the first floorboard to the final coat of paint, we help you measure once and get it right.
Measurement Tips & Tricks
The Ultimate Guide to Distance Calculators and Area Formulas
The Ultimate Guide to Distance Calculators and Area Formulas for UK Homeowners TL;DR: An electronic distance meter (or laser measure) is a handheld tool that…
Read full guide →Best 100m Laser Distance Meter UK: RockSeed vs Bosch
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Read full guide →How to Use Pythagorean Mode on a Laser Measure: A UK Guide
How to Use Pythagorean Mode on a Laser Measure: A UK Guide To use Pythagorean mode on a laser measure, stand in one position, select the 2-point or 3-point…
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