OYO - McSEIS-AT (3ch)
    Model:McSEIS-AT (3ch)
    Country of Origin:Japan
    Use: McSEIS-AT is an epoch-making microtremor exploration system that can measure S-wave velocity structures in three dimensions.
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Microtremor array exploration and microtremor measurement data logger

McSEIS-AT is an epoch-making microtremor exploration system that can measure S-wave velocity structures in three dimensions.

Its light weight of 1.6 kg and wireless capability make on-site measurements faster and more efficient.

You can check the operating status of the GPS, network and battery with the LED light on the side of the main unit. The power ON/OFF can also be switched by reversing the instrument several times.

The captured data can be downloaded to PC via Wi-Fi and analyzed with the dedicated software “SeisImager”.


  • Internal power supply eliminates the need for external power sources
  • Dust-proof and water-proof functions equivalent to IP68
  • Up to 70 hours of data can be captured with the built-in memory (4 GB) (4 ms sampling data)
  • Time synchronization via GPS without cable
  • Captured data can be downloaded to PC via Wi-Fi.
  • No hammer hitting nor weight hitting is required


Number of channels 1ch
Analog/Digital Resolution 24bit
Preamp gain (PG) 0, 12, 24, or 36 dB
Sampling interval 0.25, 0.5, 1, 2, 4, 10 msec
Internal storage capacity 4GB (expandable to 32GB)
Way to upload data Wi-Fi data upload availble
Geophone operation check The LED light on the main unit lights up when a seismic vibration is applied to the geophone.
Connector Input connector for geophone (3-pin), connector for external battery, charge and USB (8-pin)
Power supply Built-in battery (10Ah NiMH battery), External battery (6V DC)
Charge 9-14 hours
Environmental performance Equivalent to IP68 (Dust-proof, 1 m water-proof)
Dimensions 142 mm (D) × 140 mm (W) × 102 mm (H)
Weight 1.6kg
Operating temperature -20 ℃ - +55 ℃
Software Captured data can be automatically analyzed via Wi-Fi (using the dedicated software "SeisImager")

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