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Natural sensor frequency: 10 Hz (others on request)

Sensor arrangement: 4 horizontal (45°)/1 vertical

Operational depth: Up to 100 m

Receiver length: 600 mm

Receiver weight: 2.8 kg

Cable weight per metre: 145 g

Cable strength: 2150 N

Borehole diameter: 75 mm (or larger if spacers are used)

Clamping system: Inatable bladder

Depth indicator: Cable marking every 2 m

Connector: To any seismograph Storage: On drum