Overview
The SHURE SW-MT4 and SW-MS Series are the go-to entry and mid-range laser distance meters for professionals and DIY users who need reliable, accurate measurements without compromise. Built with the same precision laser technology found in SHURE’s premium lineup, these compact handheld devices deliver instant distance readings at the press of a button — along with a suite of measurement modes that eliminate the need for manual calculations on site.
Slim, lightweight, and ergonomically designed, the SW-MT4 and SW-MS series fit easily in a shirt pocket or tool bag and are tough enough to handle the daily demands of construction, renovation, real estate, and interior design work.
How It Works
Point the device at your target surface and press READ. The Class II laser (630–670nm, <1mW) instantly measures the distance and displays the result on the large backlit LCD. For indirect measurements — such as ceiling heights or distances you can’t directly access — use the built-in Pythagorean mode to calculate height from two known measurements automatically. Area and volume calculations are performed just as easily by taking sequential length and width (and height) readings.
Key Features (All Models)
- High accuracy – ±(2mm + d×1/10000) precision across the full measurement range
- Class II laser – 630–670nm wavelength, <1mW safe output
- Continuous measurement mode – Real-time distance tracking as you move
- Area & volume measurement – Automatic calculation from sequential readings
- Pythagorean (indirect height) mode – Measure heights and distances you can’t directly reach
- Min/Max value tracking – Capture shortest and longest readings in a session
- Self-calibration function – User-adjustable offset for consistent site-specific accuracy
- Audible beep confirmation – Sound feedback on every successful measurement
- Auto laser off – Laser cuts off after 20 seconds (single measurement mode) to save power
- Auto power off – Device shuts down after 150 seconds of inactivity
- Long battery life – Up to 4,000 measurements (carbon) / 8,000 measurements (alkaline) on 2× AAA batteries
- Wide temperature range – Operates 0°C to 40°C; stores safely from -20°C to 60°C
- Humidity resistance – Storage humidity 20%–80% RH
SW-MS Series Additional Features (SW-MS50 / SW-MS70 / SW-MS100)
- 99-reading data storage – Review and recall up to 99 previous measurements on-device
- Add/Subtract measurement – Combine or subtract multiple readings directly on the device
- Cumulative area/volume addition – Add multiple room or space measurements together for total project figures
- Single bubble level – Built-in spirit level for improved horizontal alignment accuracy
- Larger form factor – 108×50×25mm body for better grip on extended use
Full Specifications
| Parameter | SW-MT4 | SW-MS50 | SW-MS70 | SW-MS100 |
|---|---|---|---|---|
| Measuring Range | 0.05–40m | 0.05–50m | 0.05–70m | 0.05–100m |
| Accuracy | ±(2mm+d×1/10000) | ±(2mm+d×1/10000) | ±(2mm+d×1/10000) | ±(2mm+d×1/10000) |
| Laser Class | Class II | Class II | Class II | Class II |
| Laser Type | 630–670nm, <1mW | 630–670nm, <1mW | 630–670nm, <1mW | 630–670nm, <1mW |
| Continuous Measurement | ✅ | ✅ | ✅ | ✅ |
| Area / Volume | ✅ | ✅ | ✅ | ✅ |
| Pythagorean Mode | ✅ | ✅ | ✅ | ✅ |
| Add/Subtract | ❌ | ✅ | ✅ | ✅ |
| Cumulative Area/Volume | ❌ | ✅ | ✅ | ✅ |
| Min/Max Tracking | ✅ | ✅ | ✅ | ✅ |
| Self-Calibration | ✅ | ✅ | ✅ | ✅ |
| Audible Beep | ✅ | ✅ | ✅ | ✅ |
| Data Storage | ❌ | ✅ 99 readings | ✅ 99 readings | ✅ 99 readings |
| Bubble Level | ❌ | ✅ Single | ✅ Single | ✅ Single |
| Auto Laser Off | 20 sec | 20 sec | 20 sec | 20 sec |
| Auto Power Off | 150 sec | 150 sec | 150 sec | 150 sec |
| Battery Life | 4,000 / 8,000× | 4,000 / 8,000× | 4,000 / 8,000× | 4,000 / 8,000× |
| Power Supply | 2× 1.5V AAA | 2× 1.5V AAA | 2× 1.5V AAA | 2× 1.5V AAA |
| Operating Temp | 0°C – 40°C | 0°C – 40°C | 0°C – 40°C | 0°C – 40°C |
| Storage Temp | -20°C – 60°C | -20°C – 60°C | -20°C – 60°C | -20°C – 60°C |
| Storage Humidity | 20–80% RH | 20–80% RH | 20–80% RH | 20–80% RH |
| Dimensions | 104×43×25.5mm | 108×50×25mm | 108×50×25mm | 108×50×25mm |
“d” denotes actual measured distance. Accuracy may be affected in adverse conditions such as excessively bright sunlight, large ambient temperature fluctuations, highly reflective or very dark target surfaces, or low battery.
Which Model Should I Choose?
| Need | Recommended Model |
|---|---|
| Basic measuring on a budget, up to 40M | SW-MT4 |
| Up to 50M with data storage & add/subtract | SW-MS50 |
| Larger spaces and longer walls, up to 70M | SW-MS70 |
| Full-floor commercial or large residential projects | SW-MS100 |
Applications
- Interior room measurement for flooring, tiling, and painting
- Ceiling height and window/door opening verification
- Real estate property surveys and listings
- Furniture layout and interior design planning
- Construction layout and structural measurement
- HVAC, electrical, and plumbing installation planning
- Warehouse space and storage planning
