Gecko Seismographs

Digital Recorder or Digital Sensors. Which is right for you?
Compact 4-channel Seismic Recorder
Compact 4-channel Seismic Recorder
A fully featured recorder at an affordable price. Supports all 3rd party sensor brands & models. Easy to use built-in user interface, continuous recording to removable SD card
Use you favourite earthquake sensor with an easy to use data logger. The Gecko is a low-power recorder in a hand-held chassis designed for installation inside vaults or instrument enclosures. Configured through the LCD with a simple 4-button keypad – no laptop required!
Portable Digital Vibration Sensors
Portable Digital Vibration Sensors
Built-in high frequency triaxial velocity or acceleration sensors with high amplitude ground motion detection range. Extra input to connect an air-blast microphone
The Gecko BLAST, FORCE and Gecko SMA. Plug in power and you’re instantly recording vibrations continuously for months. Monitor blasts, construction and demolition works, or any other large near field vibrations. Add an external microphone for compliance monitoring applications.
Professional Digital Seismographs
Professional Digital Seismographs
All-in-one portable high sensitivity, digitally logging velocity or acceleration sensors. Our Pro range has a model to suit every budget and weak- and strong-motion application
Gecko TREMOR for low cost local earthquake and vibration velocity recording; Gecko PRISM short (SP), medium (MP) or long period (LP) velocity sensors; and Gecko SMA-HR ±2g or SMA-XR ±10g acceleration sensors give you wide frequency response and the maximum amplitude range using the Gecko’s low noise digitiser.
Download the Gecko Range Brochure
Download the Gecko Range Brochure
Need all the technical details? Download the data sheet for all of the detailed technical specifications and capabilities of our ground motion recording systems
Click the globe icon below to download the Gecko product range brochure.

Technical Specifications

The Gecko is all about class-leading user experience, but it has the performance to match. Here's an overview of the tech specs.

32-bit ADC

  • 3+1 channels, 40Vpp input range
  • Gain options: x1 x2 x4 x8 ... x512
  • Low Noise, High Dynamic Range; Below NLNM for 750V/m/s and higher sensitivity seismometers
  • Sample rates: 50, 100, 200, 250, 400, 500, 800, 1000, 2000, and 4000 samples per second
  • Power: 7-30V DC, only 0.9W
  • LCD and 4-button keypad allows full configuration - no laptop required! Easy field deployed for students and professionals alike.


  • Continuous data always recording to ring buffer
  • MiniSEED data format and system information text files
  • Internal GPS receiver timestamps data every second ensuring data is within 10 microseconds of UTC
  • Trigger logging using Level and STA/LTA algorithms
  • State of Health logging
  • GeckoLink accessory available for SeedLink over Ethernet

Data Archive

  • 32GB removable SD card storage
  • 12+ month recording @ 100sps
  • Two trigger/SOH alarm outputs
  • Ethernet/WiFi adaptor available
  • GeckoLink accessory available with 64GB removable USB storage also acts as SeedLink server over Ethernet
  • Included application software: Waves for waveform analysis; Streams for real time display, data archiving and remote Gecko configuration and upgrades

Features & Price

Choose a Gecko for your application.

Gecko Compact

Light, portable, affordable recorder


  • Bring Your Own Sensor
  • Half price vs. competing models
  • Built-in User Interface
  • Wireless telemetry options
  • Removable SD card, IP65 case
price: $

Blast, Force & SMA

High Frequency Vibrations


  • All-in-one weatherproof design
  • Months of continuous recording
  • Robust for rough field handling
  • Extra input for Microphone
  • Alarm & Telemetry options
price: $$-$$$


Low Noise Accelerographs


  • Natural Period & Modal Analysis
  • 2µg noise to ±10g SMA-XR
  • 1ng noise to ±2g SMA-HR
  • Internal battery option
  • IP67, central bolt mounting
price: $$$$


High Sensitivity Velocity


  • Local, Regional or Global Scale
  • 0.5s-500Hz, 254mm/s TREMOR
  • 10s-150Hz, 50mm/s PRISM-SP
  • 40s-90Hz, 40mm/s PRISM-MP
  • 120s-60Hz, 40mm/s PRISM-LP
price: $$$-$$$$

History of Kelunji Seismographs

"Kelunji" is an Aboriginal word for a small cockatoo known locally as a "galah" - also an Australian euphemism that reflects some traits of our seismologists 😉

Starting in the late 1970s, our first generation digital recorders, the Alpha and Beta, used cassette tapes for triggered data recording. The first recorder known as "Kelunji" is now referred to as the Classic, and was our first to use solid state memory (1MB!). This was followed by the D-series and 24-bit Echo that used high volume CompactFlash Card storage, with the EchoPro (and briefly Fusion) moving to USB data storage. Following the ABCDEF nomenclature, our 7th generation "G" recorder recalls the Echo name and its core values of user-friendliness and continuous recording.
Of course our latest recorder needed to use the latest technology, which includes 32-bit ADC chips and other components that enables the Gecko to use a fraction of the power of previous generation machines.
As always, the Gecko supports sensors from any and all manufacturers: be they geophones or microphones; blast or earthquake accelerometers; or short period to broadband seismometers.
Our technology doesn't end at the recorder - we have developed data telemetry solutions, network management and data display software, and data analysis and alerting applications. The Gecko is just the first step in the complete seismic monitoring solution developed by the Seismology Research Centre and manufactured by ESS Earth Sciences.