Broadband seismometer CME-4211-OBS

The CME-4211-OBS seismometer is specially adapted for ocean bottom installations.

This model has a specially designed compact light-weight case, a flat flexible signal cable and low-power consumption. 

Specially designed hardware allows the seismometer to be installed inside titanium or glass waterproof spheres usually used for ocean bottom installations. 

The CME-4211-OBS is the lightest model of a three-component seismometer among our products.

Characteristics Delivery and warranty

Frequency range 0.033 Hz (30 sec) - 50 Hz
Sensitivity 2000 V/(m/sec)
Self noise at 1 Hz 8.9 nm/sec (17.8 µV)
Sensitivity axes Vertical, North, East
Supply voltage 12 V Nominal (9 - 16 V permissible)
Power consumption 8 mA
Temperature range -40...+55°C
Maximum installation tilt ±15°
Max. underwater depth determined by the external housing
Cross-axes sensitivity -60 dB
Cold-start time 10 - 30 min
Case material Stainless steel, aluminum
Dimensions 162 x 115 mm (diameter x height)
Weight 2.2 kg