Strong Motion Accelerograph
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Product overview
Capturing the exact moment ground motion strikes is everything in seismic monitoring, and the Gecko Seismograph family delivers that precision.
Gecko Sigma: Strong Motion Accelerometer for Structural Health Monitoring
Anyone working in structural health monitoring knows the real challenge isn’t just measuring vibration, it’s making sure you’ve captured the right moment when it actually matters. That’s the problem the Gecko Sigma was built to solve. It combines a recorder and acceleration sensor into one unit, and it mounts to a structure using a single central bolt, which keeps installation simple without cutting corners on measurement quality. Among strong motion accelerographs available for buildings and civil structures, it’s become a genuinely practical choice for teams that need continuous monitoring rather than occasional readings. As a trusted Gecko Sigma analyser supplier serving the UAE, Saudi Arabia, Qatar, Kuwait, Oman, and Bahrain, BDHME helps engineering teams select the right configuration for their specific monitoring needs.
At the heart of the system sits a low-noise accelerometer with a ±4g range, part of a fully integrated package that records continuously into a ring buffer. That design choice matters more than it might seem at first glance. Earthquakes don’t give advance warning, so by the time one actually strikes, the Gecko Sigma has already been recording well before the event began, which means nothing important gets lost in that gap between calm and crisis. This level of sensitivity is what allows the instrument to track a structure’s natural frequency and modal response, both essential for understanding how a building will hold up under seismic stress, and over time, for genuinely improving building safety.
Pair the Gecko Sigma with our Power Stream, which comes fitted with its own internal battery, and you get one of the more affordable fully compliant strong motion accelerometer systems available for meeting the 2015 DPWH guidelines on earthquake recording instrumentation for buildings. Data gets stored continuously on a local SD card, and for teams that need eyes on it remotely, it can also be telemetered to an offsite computer through Ethernet or a cellular modem.
Among the different types of strong motion accelerograph systems out there, the Gecko Sigma tends to stand out specifically for rapid deployment work, aftershock monitoring networks being a good example, where speed of setup matters as much as accuracy. Field testing at temporary deployment stations backs this up: earthquakes as small as magnitude 1.0 are clearly visible at a range of 10km from the instrument, and even magnitude 0.2 events within 3km show up distinctly above the usual background noise you’d expect at a temporary surface station.
Why the Gecko Sigma Fits Strong Motion Network Solutions
For engineering teams putting together strong motion network solutions, whether that’s a permanent installation feeding into the national strong motion network or a temporary array thrown together for aftershock response, the Gecko Sigma offers a fairly practical mix of sensitivity, regulatory compliance, and straightforward installation. It’s a solid candidate for anyone running a strong motion accelerograph evaluation and wanting to compare accelerometers’ strong motion sensors based on how they actually perform in the field, not just what the spec sheet claims.
BDHME offers the Gecko Sigma as part of a wider selection of accelerographs for monitoring accelerations for sale, supporting structural engineers, seismic monitoring networks, and public safety agencies working to strengthen earthquake readiness across buildings and infrastructure. For teams comparing options and looking for the best strong motion accelerographs for their specific application, our team can walk through how the Gecko Sigma stacks up against other strong motion accelerograph systems based on deployment type, sensitivity requirements, and compliance needs.
Find the Right Solution for Your Laboratory
Need help selecting the right product for your application? Our specialists can guide you with product specifications, pricing, installation, and technical support across the UAE and Middle East.