CME-4211-BH150 is an analog, 3 component, low noise broadband borehole seismometer. It permits installation to boreholes under water or in dry conditions up to 250 m depth and is suitable for permanent and long term installations. It comes with a hermetic connector and lifting ring. The unit does not require maintenance, locking and centering.

• Frequency Range: 0.033 Hz (30 Sec) – 50 Hz
• Sensitivity: 2000 V / (m/sec)
• Clip Level: 5 mm / Sec
• Noise Level (1 Hz): 8.9 nm / Sec (17.8 uV)
• Dynamic Range: 112 dB 
• High Performance
• Works Up to 250 m Depth