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° |
| Dimensions | 162 x 115 mm (diameter x height) |
| Weight | 2.2 kg |
| Case material | Stainless steel, aluminum |
| Max. underwater depth | determined by the external housing |
| Cross-axes sensitivity | -60 dB |
| Cold-start time | 10 - 30 min |