What Sanlien Technology Corp. does

Sanlien Technology Corp. is a Taiwan-headquartered (Da'an District, Taipei) environmental and structural monitoring company founded in 1967 by J.C. Lin and publicly listed on the Taiwan Stock Exchange (Ticker: 5493) since 2001. The company designs and manufactures seismic monitoring instruments, IoT-based geotechnical sensors, vibration data acquisition systems, and cloud platforms, with over 350 professionals globally serving customers across 50+ countries including Taiwan Railway Corporation, IIT India, BMKG Indonesia, Nepal NCDM, and various industrial enterprises.

The company's product architecture spans three layers: (1) a sensor/instrument layer including the pALERT network accelerometer family (F330, Q332, MEMS) for earthquake early warning, the SHAKE series (SD300, AA222, FA335, SS300) for structural vibration, and a geotechnical sensor portfolio (TILTdot wireless tiltmeter, VWdot vibrating wire dataloggers, RAINdot rain gauge, VW piezometers, earth pressure cells, MEMS tiltmeters and in-place inclinometers); (2) a data acquisition and communication layer including the PX01 smart central data logger (Modbus, SeedLink) and CUBE smart interface; (3) a software/cloud platform layer including SanDAS for vibration monitoring, the dot Cloud geotechnical monitoring platform, and WMS web monitoring system. Underlying technology includes a proprietary Pd-based P-wave detection algorithm co-developed with Prof. Yih-Min Wu of National Taiwan University that compresses the earthquake blind zone from 70km to 12km, alongside SHM algorithms such as the Ormsby wavelet filter for inter-story drift ratio and FEMA HAZUS damage indices. The company also operates a TAF-certified calibration center — the first in Taiwan for force calibration exceeding 200T and seismometer calibration — via its Sanlien Instrument Inspection and Calibration Center subsidiary.

Sanlien generates revenue through four streams: (1) hardware sales of seismic sensors, accelerometers, and IoT monitoring devices; (2) recurring software subscriptions to the dot Cloud monitoring platform; (3) TAF-certified calibration services for vibration, force, and length measurement; and (4) turn-key system integration and project services for seismic monitoring deployments. The company employs a hybrid go-to-market combining enterprise field sales to government agencies and infrastructure operators with a global channel-partner network spanning South Korea, Philippines, Vietnam, Indonesia, USA, Mexico, New Zealand, China, India, Nepal, and Italy. Pricing is quote-based with no public list pricing and multi-year contracts are typical. Key partners include National Taiwan University, the National Center for Research on Earthquake Engineering, OSMOS Group (via the jointly-acquired SIAP+MICROS S.r.l. in Italy), and IIT. The company's GHG footprint in 2024 was 15,631 tons CO2e with 132.43KW of solar capacity installed at its Kaohsiung R&D/subsidiary facility.

Name

Sanlien Technology Corp.

Legal name

Sanlien Technology Corp.

Website

https://sanlien.com

Company type

Public

Founded year

1967

Operating status

Operating

Short description

Sanlien Technology Corp. is a Taiwan-listed (TWSE: 5493) environmental and structural monitoring company that designs seismic accelerometers, IoT geotechnical sensors, and cloud platforms for earthquake early warning, structural health monitoring, and geotechnical applications, serving government agencies, infrastructure operators, and industrial customers across 50+ countries.

Ownership category

akta.pro rank

Product category

Seismic and Geotechnical Monitoring Instrumentation

NAICS

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Electronic and Precision Equipment Repair and Maintenance (8112)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

NDT/NDE Inspection Equipment (Ultrasonic, eddy current, radiography, thermography) (IMAGAFAI)

akta.pro secondary industries

Calibration Services & Standards (Calibration labs, reference standards, traceability services) (IMAGAFAH), Rotating Equipment Inspection & Vibration Diagnostics (Turbines, Compressors, Pumps) (EUAEAHAJ)

Keywords

• Seismic monitoring instruments
• Earthquake early warning systems
• Structural health monitoring
• Geotechnical monitoring sensors
• Vibration data acquisition

Headquarters

HQ city

New City

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Technology or R&D, Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Hardware Products: Sale of seismic sensors, accelerometers, geotechnical sensors, IoT monitoring devices (TILTdot, VWdot series, RAINdot), and data acquisition systems. Products include pALERT series, SHAKE series, CUBE, PX01, and wireless dataloggers.
2. Software Platforms and Subscriptions: Subscription-based access to dot Cloud platform for real-time monitoring, data visualization, and alert management. WMS (Web Monitoring System) provides cloud-based geotechnical monitoring services.
3. Calibration Services: TAF-certified calibration services for vibration, force, and length measurement instruments. Services include inspection reports, calibration certificates, and traceable calibration for load cells from 100T to 1000T.
4. System Integration and Project Services: Turn-key seismic monitoring solutions, project design, installation, and commissioning. Includes customized monitoring system deployments for infrastructure projects such as Taiwan Railways EEWS, dam monitoring, and industrial plant solutions.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels9 records

Core offering

Sanlien Technology Corp. develops and manufactures seismic, geotechnical, and vibration monitoring instruments, IoT-enabled data acquisition systems, and cloud-based monitoring platforms. Its portfolio spans accelerometers (pALERT and SHAKE series), wireless tiltmeters, vibrating wire dataloggers, rain gauges, and cloud platforms (dot Cloud, SanDAS, WMS) for earthquake early warning, structural health monitoring, and geotechnical applications. The company also operates a TAF-certified calibration laboratory providing certified calibration services for vibration, force, and length measurement instruments.

Product overview

Sanlien Technology Corp. is an environmental and structural monitoring company offering a comprehensive portfolio of hardware sensors, wireless IoT devices, data acquisition systems, and cloud-based monitoring platforms. The product architecture consists of three main layers: (1) Sensor/Instrument layer including pALERT series network accelerometers (F330, Q332, MEMS), SHAKE series standalone accelerometers (SD300, AA222, FA335, SS300), and geotechnical sensors (TILTdot, VWdot, VWdot4, VWdot16, RAINdot, VW Piezometer, Earth Pressure Cell, MEMS Tiltmeter, IPI); (2) Data Acquisition/Communication layer including PX01 smart central data logger and CUBE smart interface; (3) Software/Cloud platform layer including SanDAS data acquisition software, dot Cloud geotechnical monitoring platform, and WMS web monitoring system. Solutions span Earthquake Early Warning Systems (EEWS), Structural Health Monitoring (SHM) for buildings/bridges/dams, Geotechnical/Landslide Monitoring, Industrial Monitoring, and TAF-certified Calibration Services. Products are designed for infrastructure safety monitoring applications across Taiwan and international markets.

Differentiator

Problem solved

Functional benefit

Brands

• SanDAS: Sanlien data acquisition system for vibration monitoring and data acquisition and signal analysis.
• dot Cloud
• WMS
• pALERT
• SHAKE
• TILTdot
• VWdot
• RAINdot

Products and services

• pALERT F330 High-precision triaxial force-balance accelerograph featuring Pd (P-wave displacement) seismic early warning technology, three trigger logics (Pd, PGA, STA/LTA), GPS/NTP time synchronization, and S-wave destructiveness estimation within 3 seconds. Designed for earthquake early warning, structural health monitoring, and industrial risk management.
• pALERT Q332 High-precision digital accelerograph based on Quartz MEMS technology, delivering ultra-low noise, high stability, and long-term measurement accuracy. Best suited for high-resolution seismic observation, structural health monitoring, and engineering-grade vibration analysis.
• pALERT (MEMS accelerometer)
• SHAKE SD300 Tri-axial digital MEMS accelerometer designed for real-time structural health diagnostics and vibration monitoring. Offers high-speed data streaming and edge processing capabilities. Integrates with PX01/CUBE or SanDAS software for real-time and post-event analysis.
• SHAKE AA222 Tri-axial force-balance accelerometer with ±10V analog output and a high dynamic range exceeding 150 dB. Designed for earthquake early warning, seismic hazard mitigation, and rapid structural health diagnostics. Features IP67 protection for harsh environments.
• SHAKE FA335 Tri-axial force balance analog accelerometer for high-precision vibration and strong-motion monitoring. Suited for bridges, high-rise buildings, and infrastructure subjected to dynamic loading.
• SHAKE SS300
• PX01 Smart central data logger (1U rack-mounted) that connects and manages multiple seismic accelerometer recorder devices, supporting up to 5 sensors. Features N-of-M voting algorithm for reduced false alarms, relay control for automated response, Modbus protocol support for SCADA/MES integration, and SeedLink protocol for third-party seismic network connectivity.
• TILTdot Wireless dual-axis tiltmeter with LTE-M and NB-IoT wireless transmission. Features MQTT protocol support, 32GB Micro SD storage, MEMS accelerometer sensor, measuring range ±90°, and 3-6 months battery life. Designed for site/civil engineering, water conservancy, bridge engineering, and slope safety monitoring.
• VWdot Series Family of vibrating wire dataloggers for geotechnical monitoring applications. The series includes VWdot (single-channel base), VWdot4 (4-channel datalogger for multi-parameter measurements like pore water pressure and earth pressure), and VWdot16 (16-channel datalogger for large-scale network monitoring).
• RAINdot Wireless rain gauge for landslide and geotechnical monitoring. Captures precipitation intensity and accumulation data for correlation with slope stability conditions.
• dot Cloud Cloud-based geotechnical monitoring platform that centralizes data from IoT sensors and dataloggers. Provides real-time monitoring dashboard, threshold-based SMS/email alerts, advanced visualization, historical data tracking, multi-site management, and API-based connectivity with third-party monitoring platforms.
• SanDAS Sanlien Data Acquisition System for data acquisition and signal analysis. Core software platform for seismic monitoring networks, supporting multiple seismic intensity scales including CWB 2020, China's GB/T-17742-2008, and international MMI.
• WMS (Web Monitoring System) Web-based monitoring system for geotechnical and environmental monitoring data, providing centralized web access to monitoring platform solutions.
• CUBE Smart Interface Smart Interface providing real-time earthquake alarms, complementing pALERT F330 by instantly alerting users to seismic events and enabling rapid response. Part of the Hybrid Seismic Monitoring Solution integrating Earthquake Early Warning with FEMA HAZUS rapid assessment technology.
• VW Piezometer
• VW Earth Pressure Cell Vibrating wire earth pressure cell that measures total earth pressure and stress within soil layers or structures, helping understand load distribution and soil behavior under changing environmental or construction conditions.
• MEMS Tiltmeter Surface tilt and structural rotation measurement sensor using MEMS technology. Enables early detection of slope movement and deformation with compact, robust, real-time monitoring capability.
• MEMS In-Place Inclinometer (IPI) Borehole-installed sensor for continuous subsurface lateral displacement monitoring. Provides real-time soil movement data at different depths for tracking deep-seated slope instability.
• Adot4 IoT datalogger supporting analog signal inputs, allowing flexible integration with various third-party sensors and expanding system compatibility.
• Earthquake Early Warning System (EEWS) On-site and regional earthquake early warning solution that detects P-waves and provides advance warning before S-waves arrive. Features Pd-based 3-second displacement detection and can reduce the blind zone from 70km to 12km compared to regional warning systems.
• Structural Health Monitoring Solution Real-time monitoring solution for buildings, bridges, and dams. Uses acceleration sensors and SHM algorithms including Ormsby wavelet filter for inter-story drift ratio calculation and HAZUS damage indices for structural damage detection.
• Geotechnical Monitoring Solution IoT-based monitoring solution for slope stability, landslide risk, foundation construction, and deep excavation. Uses LTE-M and NB-IoT technologies for real-time data collection and early warning capabilities.
• TAF Calibration Services TAF-certified calibration services including Vibration Calibration (Lab 0307), Force Calibration (Lab 2749), Great Force Calibration (Lab 3994), and Length Calibration for inclinometers, tilt meters, accelerometers, and seismometers. First in Taiwan for force calibration exceeding 200T.

Quantifiable outcome

• Reduces earthquake blind zone from 70km to 12km compared to regional warning systems
• +3 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature9 records

Partnerships

Six partnerships are on record, tiered core.

• Taiwan Association of Disaster Prevention Industry (TADPI)coreGTM or Marketing Partner · 22 April 2026Sanlien co-exhibits with TADPI at Secutech 2026 to showcase the Hybrid Seismic Monitoring Solution integrating Earthquake Early Warning (EEW) with FEMA HAZUS rapid assessment technology.
• OSMOS Group (Subsidiary of EREN Group)coreStrategic or Co-development Partner · 13 September 2018In 2018, Sanlien Technology and OSMOS Group jointly acquired 100% of SIAP+MICROS S.r.l. through SIAP+MICRO Holding S.r.l. This strategic collaboration aims to deliver infrastructure monitoring solutions worldwide. OSMOS is an expert in Structural Health Monitoring (SHM) and a subsidiary of French EREN Group. The partnership combines Sanlien's safety monitoring and automation systems with OSMOS's optical strand monitoring technology and SIAP+MICROS's meteorological and hydrological monitoring expertise.
• SIAP+MICROS S.r.l.coreStrategic or Co-development Partner · 13 September 2018Italian leading brand in weather, hydrology, and environmental monitoring instruments, established in 2003 from the merger of SIAP Bologna (1925) and Micros (1976). Sanlien and OSMOS maintain the current organization and management team, with Chairman Mr. Renato Maguolo and CEO Mr. Alex Stevanin remaining in their positions. The acquisition provides OSMOS and Sanlien with expertise in meteorological, hydrological, and environmental monitoring, complementing their seismic and structural monitoring capabilities.
• National Taiwan UniversitycoreStrategic or Co-development PartnerJoint research collaboration resulting in the development of the first-ever Taiwan-made Earthquake Early Warning System. The Pd-based detection technology was developed in collaboration with Prof. Yih-Min Wu of National Taiwan University.
• National Center for Research on Earthquake EngineeringcoreStrategic or Co-development PartnerJoint research partner in the development of the first-ever Taiwan-made Earthquake Early Warning System that meets international standards.
• Indian Institute of Technology (IIT)coreStrategic or Co-development Partner2013 collaboration to install advanced seismic monitoring devices in the Himalayas near Roorkee. Project involved approximately 200 specialized monitoring units at 2,500m elevation to track tectonic plate movements and provide earthquake warnings to Delhi (300-400km away). Project enjoys active engagement from the Indian Ministry of Earth Science.

Scale indicators6 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Tokyo Sokushin (TSS): Tokyo Sokushin is a Japanese seismic instrument maker specializing in strong-motion accelerometers and earthquake early warning sensors, a regional peer that competes with Sanlien in Asia-Pacific EEW deployments.
• Geosense: Geosense supplies vibrating wire sensors, inclinometers, and IoT-enabled geotechnical monitoring systems, closely overlapping with Sanlien's geotechnical monitoring solutions for dams, slopes, and tunnels.
• SIAP+MICROS: SIAP+MICROS is an Italian meteorological, hydrological, and environmental monitoring instrument maker, jointly acquired by Sanlien in 2018; it is both a subsidiary and a product-line peer in environmental monitoring.
• Kinemetrics: Kinemetrics is a US-based pioneer in strong-motion seismology and structural monitoring instruments, directly comparable to Sanlien's pALERT and SHAKE accelerometer product lines for earthquake early warning and SHM applications.
• Güralp Systems: Güralp designs and manufactures broadband seismometers and accelerometers used in seismic networks and earthquake early warning systems worldwide, competing head-to-head with Sanlien in the EEW and seismic monitoring category.
• RST Instruments: RST Instruments produces geotechnical and structural monitoring sensors (inclinometers, piezometers, tiltmeters, load cells) and vibrating wire dataloggers, directly comparable to Sanlien's VWdot series and MEMS tiltmeter portfolio.
• Campbell Scientific: Campbell Scientific manufactures rugged data acquisition systems and environmental sensors used in seismic, structural, and geotechnical monitoring, comparable to Sanlien's PX01 and SanDAS data acquisition offerings.

Broad incumbents

• Trimble Inc. Trimble is a broad industrial technology incumbent with positioning, monitoring, and structural health solutions that overlap Sanlien's SHM and asset-monitoring capabilities, though serving a much wider portfolio of industries.
• Reftek (Trimble): Reftek, now part of Trimble, makes broadband seismic data acquisition systems used in strong-motion and earthquake monitoring networks, comparable in category to Sanlien's PX01 and SanDAS offerings but backed by a much larger parent.
• OSMOS Group: OSMOS Group is a structural health monitoring specialist and co-acquirer (with Sanlien) of SIAP+MICROS; it uses optical strand sensing for bridges and buildings, adjacent to Sanlien's accelerometer-based SHM line.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/c/SanlienTechnology
• Facebookfacebook.com/sanlientechnology
• LinkedInlinkedin.com/company/sanlien-technology

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sanlien Technology Corp.