GUARDIAN AS SEISMOGRAPHThe seismograph Guardian AS is compact, flexible and reliable, equipped with recording software with a web user interface. Guardian AS is ideal for structural monitoring of buildings with threshold-exceeding alerts. Guardian AS is a compact. Class 1 triaxial seismograph for dynamic velocity measurements on structures in compliance with the reference standards DIN 4150-3, DIN 45669-1, and UNI 9916. It includes an electronically linearized geophone triad with a dynamic range of over 130 dB. A special system on the bottom plate allows it to be fixed to the floor/wall with a single bolt, and three adjustment screws ensure leveling. It uses flash memory to store velocity data and offers various Internet connectivity methods. It can function as an FTP/SFTP client and SFTP server and use standard transmission protocols, such as SeedLink for real-time data transmission, to popular software applications such as SeisComP, Sworm, etc. The device is managed via Seismic Web Configurator (SWC), an intuitive and highly usable web interface that allows complete device configuration and provides real-time operating status, data management, and waveform display. The operating status is indicated by LED indicators. Threshold exceedance notification is provided via email and/or a dedicated digital output. • HVSR Measurement • Civil Monitoring • Seismic Networks OPTIONAL CONFIGURATIONS: • Power over Ethernet (PoE) • Internal battery (up to 10 working hours) • Internal GNSS receiver for time synchronization

GUARDIAN A S SEISMOGR APH TECHNICAL CHARACTERISTICS Sensor type Electronically equalized geophone Measure range Frequency response Samples rate Dynamic range Noise floor Internal 0,5ppm drift free run RTC, NTP, optional internal GNSS Recording Mode Continuous recording with SeedLink Protocol. Configurable event recording when thresholds are exceeded with selectable pre-/post-trigger length. Recording of signal statistics (min, max, average, RMS) with selectable intervals from 10 to 100s. Data Storage File formats Solgeo EVE, MiniSEED, Ascii, CSV Ethernet 10-100 / WiFi (Client e Access Point)...