Seismic data channel:  3

ADC resolution:  32 bits

Sample intervals:  0.25, 0.5, 1, 2, 4 ms

Preamplifier gain:  0dB to 36 dB in 6 dB steps

Anti-alias filter:  206.5 Hz @ 2ms (82.6% of Nyquist) Selectable - Linear Phase or Minimum Phase

DC blocking filter:  1Hz to 10Hz, 1Hz increments or DC Removed

Operating temperature:  -40℃ ~ +70℃

Waterproof:  IP67

Data Storage:  32 GB (can be expanded to 64GB)

Charging Temperature Range:  +3˚C ~ +40˚C

w/High Capacity Battery Pack

Physical Size:  103mm (L) × 95mm (W) ×187mm (H) (w/o spike)

Weight:  2.4kg (Including internal battery and spike)

Operating Life@25℃:  30 days Continuous @ 2ms / 60 days Segmented (12hours ON/12hours SLEEP)

Recharge Time:  < 6 hours

w/Standard Battery Pack

Physical Size:  103mm (L) × 95mm (W) ×150mm (H) (w/o spike)

Weight:  1.7kg (Including internal battery and spike)

Operating Life@25℃:  15 days Continuous @ 2ms / 30 days Segmented (12hours ON/12hours SLEEP)

Recharge Time:  < 3.5 hours

Natural Frequency:  5Hz

Spurious Frequency:  >170Hz (>150Hz in horizontal sensor)

Distortion:  <0.1%@12Hz, (0° ~ 10°)V tilt. / <0.15%, (0°~3°) H tilt"

Damping:  0.7

Sensitivity:  76.7V/m/s (1.95 V/in/s)

Remark:  All parameters are specified at +22℃in the vertical position for vertical geophone and horizontal position for horizontal geophone unless otherwise stated.

(@ 2ms sample interval, 31.25 Hz, 25℃, unless otherwise indicated)

Maximum Input Signal:  ±2.5Vpeak @ Gain 0dB

Instantanteous Dynamic Range:  125dB@ 2ms Gain 0dB

Equivalent Input Noise:  0.18µV@ 2ms Gain 18dB

Total Harmonic Distortion:  <0.0002%@ Gain 0dB

Common Mode Rejection:  >100dB

Gain Accuracy:  <0.5%

GPS Time Standard:  1ppm

Timing Accuracy:  ±10µs, GPS Disciplined

Cross Feed:  < -110dB

System Dynamic Range: 145dB

Frequency Response:  0~1652Hz