Geofón DIY kit is a kit version of the Geofón, a sensitive omnidirectional geophone adjusted for field recording purposes. Originally designed for seismic measurements, it can be used with regular field recording equipment to capture very faint vibrations in various materials and even soil.

🛠️ Build guide

⚠ Neodymium magnets may cause interference with credit cards (magnetic stripes), cardiac pacemakers and ICDs.

⚠ Due to the nature of the geophone sensor, you may experience picking up electromagnetic interference in specific urban areas and other places with strong electromagnetic fields

Tech Specs

Geophone
Directivity: omnidirectional
Frequency response: 10 – 1000+ Hz
Impedance: 3500 Ω ± 5%
Resonant frequency: 20 Hz ± 6%
Open–circuit sensitivity: 88.0 V/m/s ± 5%
Cable: 1.5 m, robust polyurethane jacket, shielded
Output: XLR-3M balanced, gold-plated black Neutrik connector
Dimensions & weight: 52.5 mm x 36.5 mm ⌀, 190 g (including the cable and the magnet)

Specifications are subject to change without notice. Specifications have changed for models sold after 31st of March 2025.

In the Box

Geofón body, consisting of two parts, with a cable gland
Geofón element (hidden in the body)
1,5 m polyurethane cable
M4 x 6 mm stainless bolt (in the tube)
a heat-shrink tubing (in the tube)
Neutrik XLR connector
a neodymium magnet (attached to the body)
a stainless steel spike with an extender (in the tube)
a suction cup

Sound samples

Headphone listening recommended 🎧

Bridge handrail (unprocessed)

Locks on bridge, rattling (unprocessed)

Bowed plastic siding (unprocessed), recorded by Kai Paquin

Bathroom fan (unprocessed), recorded by Kai Paquin

Geofón

Geofón suction cup

Geofón

Geofón magnet

Geofón DIY kit

Geofón sample pack

Geofón extender and spike