Earthquake Recorders & Digital Sensors

The Gecko is our 7th generation of Kelunji earthquake recorder, designed to be the easiest to use seismograph on the market. Now with 4 channels of data captured at anywhere from 40 to 4000 samples per second, the Gecko truly covers a broad band of frequencies from the longest period 360-second seismometer to geophones, microphones, and accelerometers with up to 1.6kHz frequency response.

The Gecko comes in two chassis designs: the “Compact“, a small water-resistant exclosure with an iPhone-sized footprint; and the “Rugged“, which places the electronics in a waterproof chassis with a CD-sized footprint, bringing beautiful style to the Gecko’s efficient substance.

We have several models with integrated triaxial sensors inside or under the Rugged chassis. Various sensitivity acceleration sensors (in SMA and SMA-HR) and velocity sensors with a range of low frequency sensitivities (4.5Hz Blast, 2Hz Tremor, 40-second or 120-second Prism) provides a solution for almost every application.

Data Sheet: Gecko seismographs and accelerographs


Modern seismology requires continuous recording of the earth’s movements, and the Gecko is always on and continuously storing data to its removable SD card. From June 2018, the Gecko now has the option of 4 channels, perfect for a triaxial geophone plus microphone for vibration and blast compliance monitoring. Continuous data is can also be telemetered to a remote computer via wireless cellular modem or Ethernet. Using around 1W of power (with passive sensors) means you can record for over a month using a car battery, or indefinitely with a small solar panel and battery.

The Gecko uses the latest 32-bit Analogue to Digital Converter (ADC) chips to maximise the range amplitudes that can be recorded – the ratio of the largest to the smallest recordable signal is a factor of almost 8 million to 1.

You can find out more information at the Gecko mini website.

See our Support page to download the product manuals.