Seismic & Structural Monitoring
Broadband seismometers, strong-motion accelerographs and seismic digitisers from Nanometrics for seismic networks, dam and building monitoring, earthquake early warning and portable field surveys.
Certified Equipment
All products meet international standards with factory calibration certificates
Expert Guidance
Free consultation to help you select the right equipment for your application
Complete Support
Training, calibration, and technical support throughout the product lifecycle
All Seismic & Structural Monitoring
CASCADIA-COMPACT-POSTHOLE
Nanometrics Cascadia Compact Posthole Seismometer & Accelerometer IP68
The Nanometrics Cascadia Compact Posthole Seismometer and Accelerometer is a professional-grade, integrated seismic sensing solution designed for comprehensive ground motion monitoring. Featuring a Trillium Compact broadband seismometer combined with a Titan strong-motion accelerometer in a single robust IP68-rated posthole housing, this device is engineered to accurately capture a wide spectrum of seismic signals—from microseismic events to intense ground shaking beyond broadband clip levels. Its seismometer module options include 120-second and 20-second natural period versions, offering a flat velocity response up to 108 Hz, ideal for precise frequency analysis in environmental seismic monitoring, building acoustics, and noise vibration harshness (NVH) testing. The accelerometer complements this with a DC to 430 Hz frequency range, electronically selectable full-scale measurement ranges from ±0.25 g to ±4 g, and an industry-leading dynamic range of 166 dB at 1 Hz, making it suitable for strong-motion monitoring and structural health diagnostics. This dual-sensor integration reduces installation complexity and cost by sharing a single borehole, guaranteeing co-located data sampling for enhanced accuracy and reliability. The IP68 rating supports prolonged immersion up to 300 meters, suitable for challenging field conditions including environmental and geotechnical monitoring. Applications of the Cascadia Compact include seismic event detection, structural vibration monitoring in civil engineering, automotive and aerospace NVH testing, manufacturing quality control, and building acoustics assessments. It complies with international standards to ensure precise and reliable measurements, supporting regulatory and research requirements. Target users include geotechnical engineers, seismic researchers, environmental scientists, consulting firms specializing in structural and acoustic monitoring, and industry professionals requiring professional acoustic and vibration measurement equipment. Placid Asia provides Nanometrics instruments across Thailand and Southeast Asia on a quotation basis. Contact us today to request a quote and elevate your seismic and vibration monitoring capabilities with the Cascadia Compact Posthole Seismometer and Accelerometer.
CENTAUR-GEN5
Nanometrics Centaur Gen5 Seismic Data Logger, 3, 6 or 8 Channels
The Nanometrics Centaur Gen5 is a seismic data logger for permanent and semi-permanent stations, running the StrataOS operating system. It digitises, processes, records and streams data from broadband seismometers, accelerometers and other sensors in one low-power, IP68-rated unit. Three models are available: 3 channels for single-sensor stations, 6 channels for the common pairing of a broadband seismometer with a strong-motion accelerometer, and 8 channels for multidisciplinary stations that combine seismic with other analogue and digital sensors. Resolution is selectable from 24 to 32 bits, with sample rates up to 10,000 sps on the high-resolution channels and a dynamic range of 146 dB. Data are recorded to 8 GB internal storage, expandable to 256 GB, with SD-card archiving in MiniSEED, and streamed by SeedLink, CD-1.1, QSCD20 or Nanometrics NP. Timing is by GNSS or PTP with an accuracy better than 5 µs. Security features include OpenVPN and HTTPS. Placid Asia supplies Nanometrics instruments in Thailand and the region on a quotation basis.
PEGASUS
Nanometrics Pegasus Portable Seismic Digitiser, 3 or 4 Channels
The Nanometrics Pegasus is a portable seismic digitiser built for temporary deployments where size, weight and power decide how many stations a project can afford. It weighs 650 g and is rated IP68 for immersion to 1 m. Pegasus is available with 3 or 4 input channels, sample rates from 1 to 1000 sps and a typical dynamic range of 142 dB at 20 sps. Timing is by multi-constellation GNSS (GPS, GLONASS, BeiDou, Galileo, QZSS), with better than 5 µs accuracy when GNSS is always on and duty-cycled operation to save power. Data are recovered over USB-C: a month of data downloads in under 10 seconds, ready for processing. Pegasus pairs with the Trillium Compact family of seismometers and forms the core of the Pegasus Quick Deploy Kit. Placid Asia supplies Nanometrics instruments in Thailand and the region on a quotation basis.
PEGASUS-QUICK-DEPLOY-KIT
Nanometrics Pegasus Quick Deploy Kit, Portable Broadband Station
The Nanometrics Pegasus Quick Deploy Kit is a complete, standalone broadband seismic station in a briefcase-sized IP67 case. It combines the Pegasus digital recorder with a Trillium Compact Horizon seismometer, which together draw less than 400 mW, and the complete kit weighs under 10 kg. The kit reduces the time and overhead of packing and makes transport straightforward, so a field team can carry, place and start a station with little preparation. The station records unattended, and data are recovered from the Pegasus over USB-C at the end of the deployment. Typical uses are rapid response after a significant earthquake, short site surveys, teaching and training, and adding temporary stations to an existing network. Placid Asia supplies Nanometrics instruments in Thailand and the region on a quotation basis. Contact us for the kit configuration that suits your project.
TITAN-EA
Nanometrics Titan EA Ethernet Accelerograph for Structural Monitoring
The Nanometrics Titan EA is a strong-motion Ethernet accelerograph designed for networked deployments on or in large civil structures such as multi-storey buildings, bridges, hydro-electric dams and nuclear reactors. It uses the same Titan triaxial sensor and digitiser/recorder technology as the Titan SMA. The Titan EA is powered over Ethernet (PoE, 37 to 57 V DC, modes A and B) and comes in two models. The Titan EA Server has a GNSS receiver and acts as a network time server; Titan EA Clients take their timing over Ethernet. A building array therefore needs one cable per sensor point and a GNSS antenna only at the server. Because every unit is time-synchronised on one network, the array records the response of the whole structure as one data set, which is what structural health monitoring and post-earthquake assessment need. Placid Asia supplies Nanometrics instruments in Thailand and the region on a quotation basis.
TITAN-SMA
Nanometrics Titan SMA Strong-Motion Accelerograph with Digitiser
The Nanometrics Titan SMA is a strong-motion accelerograph: the Titan accelerometer, a digitiser and a recorder in one IP68 unit, for standalone or networked free-field monitoring. It records from DC to 430 Hz with a selectable full scale from ±0.125 g to ±4 g, at sample rates up to 2000 sps. Timing comes from the built-in GNSS receiver or from the network by PTP or NTP, with an accuracy better than 5 µs. The Titan SMA computes and transmits peak ground acceleration, velocity and displacement in real time, recognises P-wave events, and supports ultra-low-latency configurations down to 0.25 s for earthquake early warning. Data are stored on a removable SD card and retrieved over Ethernet in MiniSEED or ASCII. Configuration is through a web browser, and built-in calibration signals (sine, step and pseudo-random) support routine checks. Placid Asia supplies Nanometrics instruments in Thailand and the region on a quotation basis.
TITAN-ACCELEROMETER
Nanometrics Titan Strong-Motion Accelerometer, DC to 430 Hz
The Nanometrics Titan is a triaxial force-balance accelerometer for high-precision strong-motion recording in observational seismology and structural engineering. It measures from DC to 430 Hz with a dynamic range of 166 dB at 1 Hz, so the same sensor resolves small structural responses and records strong earthquake shaking without clipping. The full-scale range is selectable electronically between ±0.25 g and ±4 g, and the sensor can be powered and controlled by a Centaur digitiser. The housing is rated IP68 at 2 m for 72 hours and operates from -20 °C to +70 °C, with an ultra-low-temperature option. The Titan is used in building and bridge instrumentation, free-field strong-motion stations and earthquake early warning networks. Placid Asia supplies Nanometrics instruments in Thailand and the region on a quotation basis.
TRILLIUM-360-GSN
Nanometrics Trillium 360 GSN Observatory Seismometer (Vault, Posthole, Borehole)
The Nanometrics Trillium 360 GSN series is an observatory-grade broadband seismometer for global and national seismic networks. Its self-noise is at or below the New Low Noise Model (NLNM) at all frequencies, and its response is flat from 360 seconds to about 80 Hz, so a single instrument covers both global and local seismicity. Three versions are available. The Vault model includes a patented thermal stability system against daily temperature swings. The Posthole model has a stainless steel waterproof enclosure for harsh sites. The Borehole model is built for cased boreholes, with a hole lock and fail-safe release. Polar Certified vault and posthole models operate down to -50 °C. The Trillium 360 GSN is used for new network stations and for the recapitalisation of existing observatories. Placid Asia supplies Nanometrics instruments in Thailand and the region on a quotation basis.
TRILLIUM-COMPACT
Nanometrics Trillium Compact Broadband Seismometer (120 s / 20 s)
The Nanometrics Trillium Compact is a small, low-power broadband seismometer that installs as easily as a geophone. It needs no mass lock and no mass centring, so a station can be placed, levelled and recording within minutes. Two versions are available. The 120 s model is flat to velocity from 120 seconds to over 100 Hz and suits regional and teleseismic recording; the 20 s model covers 20 seconds to over 100 Hz and tolerates up to 10° of tilt, which makes temporary deployments fast. Both use a symmetric triaxial force-balance sensor with a 40 V peak-to-peak differential output. At 180 mW typical (120 s model), the Trillium Compact allows smaller batteries and solar panels, and it pairs directly with the Centaur and Pegasus digitisers. The housing is rated IP67 and weighs 1.2 kg. Placid Asia supplies Nanometrics instruments in Thailand and the region on a quotation basis. Contact us with your deployment type and the number of stations.
TRILLIUM-COMPACT-HORIZON
Nanometrics Trillium Compact Horizon Direct-Bury Broadband Seismometer
The Nanometrics Trillium Compact Horizon is a broadband seismometer in a titanium housing, built for shallow direct burial as well as vault installation. At 1.1 kg it weighs about a third of the direct-bury Trillium Compact Posthole, and its top-mounted connector makes burial straightforward. It shares the Trillium Compact force-balance sensor: 120 s and 20 s versions, flat to velocity up to 108 Hz, with no mass lock and no mass centring. Power consumption is 180 mW typical for the 120 s model; paired with a Nanometrics low-power digitiser, a complete station draws less than 400 mW. The Compact Horizon suits permanent local networks where a vault is not practical, and long temporary deployments where low power and small size reduce site cost. Placid Asia supplies Nanometrics instruments in Thailand and the region on a quotation basis.
TRILLIUM-COMPACT-POSTHOLE
Nanometrics Trillium Compact Posthole Seismometer, IP68 Downhole
The Nanometrics Trillium Compact Posthole is a rugged broadband seismometer for downhole installation: shallow direct burial, cased postholes and deeper boreholes up to 500 m. Its stainless steel enclosure and waterproof marine connector are rated IP68 for prolonged immersion to 300 m. The sensor is the Trillium Compact force-balance design, available in 120 s broadband and 20 s short-period versions, flat to velocity up to 108 Hz. No mass lock or mass centring is needed, and installation needs no vault, which reduces site preparation. When used with a Centaur Gen5 digitiser, a virtual levelling bubble in the Centaur interface makes levelling in a dark hole, or once buried, simple to check. Placid Asia supplies Nanometrics instruments in Thailand and the region on a quotation basis.
TRILLIUM-HORIZON-120
Nanometrics Trillium Horizon 120 Very Broadband Seismometer
The Nanometrics Trillium Horizon 120 is a very broadband seismometer for permanent network stations, designed for both direct burial and vault installation. Its response is flat from 120 seconds to 150 Hz, with a dynamic range of 168 dB at 1 Hz. The stainless steel housing is rated IP68 and NEMA 6P for prolonged immersion to 10 m, so a station survives a flooded vault or a wet burial pit. A detachable lifting handle is included, and power consumption is 230 mW typical. The Horizon 120 is a common choice for national and regional seismic networks, for local and regional earthquake monitoring, and for upgrading ageing broadband stations. Placid Asia supplies Nanometrics instruments in Thailand and the region on a quotation basis.
TRILLIUM-HORIZON-360
Nanometrics Trillium Horizon 360 Very Broadband Seismometer
The Nanometrics Trillium Horizon 360 is the newest instrument in the Horizon series, with a lower noise floor and a lower corner frequency than the Horizon 120. Its response is flat to velocity from 360 seconds to 136 Hz, with a dynamic range of 169 dB at 1 Hz. Like the Horizon 120 it is designed for shallow direct burial, vault or pier installation, with a top-mounted connector for vault work. The stainless steel housing is rated IP68 and NEMA 6P for prolonged immersion to 10 m. Power consumption is 250 mW typical, about half that of the previous generation. The Horizon 360 is intended for permanent national and regional network stations and for instrument pools that need observatory-level long-period performance in a sensor that is still practical to deploy. Placid Asia supplies Nanometrics instruments in Thailand and the region on a quotation basis.
About Seismic & Structural Monitoring
Seismic and structural monitoring systems record ground and structural motion from microseismic levels up to strong earthquake shaking. A station combines a sensor (a broadband seismometer for weak motion, a force-balance accelerometer for strong motion, or a dual-output sensor for both) with a digitiser that time-stamps the data by GNSS and records or streams it in standard miniSEED format.
Applicable Standards
- •DIN 4150-3 (vibration effects on structures)
- •ISO 4866 (vibration in fixed structures)
- •BS 7385-2 (building vibration damage)
- •miniSEED (FDSN seismic data format)
Typical Applications
- •National and regional seismic networks
- •Dam and critical-infrastructure monitoring
- •Building and bridge structural response
- •Earthquake early warning and ShakeMap
- •Portable aftershock and site surveys