SPECIFICATIONS:

  * LIGHT WEIGHT AND EASY TO USE

  * RUGGED ALUMINIUM CASE ( Shielded against RF interference )

  * EXTERNAL GROUND MOTION SENSING PACKAGE AND ACOUSTIC MICROPHONE

  * KEYPAD AND LCD SCREEN

  * VARIABLE RECORDING RANGES, TRIGGER LEVELS AND RECORD DURATIONS

  * TYPICAL 7 DAYS CONTINUOUS OPERATION ON A FULL CHARGE

  * COMPUTER SOFTWARE FOR DATA ANALYSIS

  * 4 DIFFERENT MEMORY MODELS;
  · Mini-Seis I 1.0 M - 1.0 megabyte of memory, up to 341 blast events
  · Mini-Seis II 1/2 M - 1/2 megabyte of memory, app. 150-250 blast events
  · Mini-Seis II 1/4 M - 1/4 megabyte of memory, app. 50-100 blast events
  · Mini-Seis II 1/8 M - 1/8 megabyte of memory, app. 10-20 blast events

  * MEETS ISEE PERFORMANCE AND CALIBRATION STANDARDS