The Seismograph

That Thinks

for You

No wires. No confusion. Just mount it, hit the button—and walk away.
Meet the FM 301 blasting seismograph: the UK's most user–proof blasting monitor.

Get In Touch

Why FM 301? Because You've Got Better Things to Do

  • Built-in sensors. No extra cables
  • Mount it at any angle—yes, any
  • Instant setup: one button does it all
  • Zero configuration headaches
  • The FM 301 blasting seismograph records when your trigger level's hit. Plug in via USB, download with V-Blast—clean, timestamped, ready for reporting

This isn't just simple. It's designed to make your job frictionless.

Ask Us Anything
Cutting edge technology

Built for the Field. Engineered for Results

The FM 301 blasting seismograph uses tri–axial MEMS accelerometers instead of bulky geophones—making it lightweight, compact, and able to function accurately no matter how it's mounted.

  • Built-in GPS stamps time and location when available; if not, the FM 301 uses its internal clock to maintain consistent event timing
  • IP67–rated for dust and water resistance
  • Captures vibration and air overpressure with precision
  • No perfect levelling needed—logs accurate data even at off-angles

Everything you need, packed into one rugged unit, ready for real–world blasting environments.

FM 301 blasting seismograph easy to use

Specifications

Accelerometer Air Overpressure Microphone Other Key Specifications
Tri-axial accelerometer bi-directional, differential pressure transducer Records up to 1000 events
Acceleration: 2g / 4g / 8g Pascal range: +/- 1000Pa Bluetooth range: 4m
Velocity: +/- 327 mm/s Decibel range: up to 154 dB(lin) Low powered rechargeable lithium ion battery
20-bit analog-to-digital converter 14-bit analog-to-digital converter CE certified
Micro-electro-mechanical systems (MEMS) based technology

Built to Standards That Matter

The FM 301 blasting seismograph records vibration and air overpressure in line with the ISEE Seismograph Specification, used as the industry benchmark worldwide.

It also references widely accepted damage criteria, including:

  • DIN 4150 (Germany)
  • BS 7385 (UK)
  • USBM RI 8507 (US)

That means when you submit your data, it's not just numbers—it's context, backed by science. And with precise, timestamped logging and synced GPS, everything is packaged for easy export via V-Blast software.

Talk to an Expert
FM 301 blasting seismograph everything is in the unit

Backed by Data. Proven by Experts

We knew people would question MEMS technology in blasting environments. So we didn't just test it—we published our results.

Two papers were peer-reviewed and approved by the International Society of Explosives Engineers (ISEE) and presented at their 2023 Annual Conference on Explosives and Blasting Technique:

  • MEMS Accelerometers in Blast Induced Shock and Vibration Monitoring
  • Determination of Seismic Velocity from Quarry Blasts Using GPS-Enabled Vibration Monitors

This isn't lab gear—it's jobsite proven. Validated by users who do this work every day.

Integrated GPS

Made for Blasters. Not Engineers

We designed the FM 301 blasting seismograph with one goal:

Make monitoring blasts as effortless as possible.

So you can spend less time tinkering—and more time doing what matters.

Reach Out Now
Bluetooth capability

FM 301 Downloads

Want the full technical details? Grab the official instruction manual and spec sheet—all in one place.

Download FM 301 Documents

Let's Talk Blasts

Got a technical question? Want to see the data? Need help picking the right setup for your site?

We're not just here to sell you a seismograph. We're here to make sure you get the right result.
Get in touch with our expert team:

+44 (0)1133 859870
info@blastlog.co.uk

Whether you're comparing systems or just need straight answers—we've got you.