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The TCM-4 is a shallow water tilt current meter for very shallow water and intertidal areas that are less than 1-meter depth.

The MAT-1 Data Logger is the heart of the TCM's but has a wide range of uses on land and at sea. It consists of an accelerometer, a magnetometer and a thermistor.

The Battery Replacement Tool Kit for TCM-1, TCM-3 & MAT-1 is recommended to purchase alongside these meters or logger.

Replacement O-rings (10 Pack) for MAT-1 Titanium & TCM-3. Includes O-ring lubricant.

Spare Titanium end cap for the TCM-3 Deep Water Tilt Current Meter. Includes one pre-lubricated O-ring.

The TCM-1 Tilt Current Meter is a general purpose meter for use out to the edge of the continental shelf.

Battery Replacement Tool Kit for TCM-4 is recommended to purchase alongside the TCM-4 Shallow Water Tilt Current Meter.

Battery Replacement Tool Kit for the TCM-5 Very Deep Water Tilt Current Meter is recommended to purchase alongside these meters or logger.

Spare PVC or Titanium end cap for the MAT-1 Data Logger. Includes pre-lubricated O-ring.

Replacement O-rings (10 Pack) for TCM-5. Includes O-ring lubricant.

Spare PVC end cap for the TCM-4 Shallow Water Tilt Current Meter. Includes pre-lubricated O-ring.

Desiccants for TCM & MAT Loggers, 20 pieces of dessicant indicating silica gel.

Replacement O-rings (10 Pack) for MAT-1 PVC, TCM-1 & TCM-4. Includes O-ring lubricant.

The TCM-5 is a current meter for use in very deep ocean range in all but the deepest trenches.

The TCM-3 is a deep ocean meter for use off the continental shelf.

Spare PVC end cap for the TCM-1 Current Meter. Includes pre-lubricated O-ring and 30 cm lanyard.

Replacement Battery for Mat/TCM data loggers and tilt current meters.

Spare Titanium end cap for the TCM-5 Very Deep Water Tilt Current Meter. Includes one pre-lubricated O-ring.

TCM-1 Inversion Kit for the TCM-1 Current Meter. Required to use the meter in an "inverted" or hanging orientation.
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