The Accelerometer TP-ACC20 is a dual axis accelerometer combined with a manual trigger button, designed to be used with the Handyscope HS3, Handyscope HS4 and Handyscope HS4 DIFF.

The dual accelerometer is a low power dual axis accelerometer with voltage outputs. It can measure accelerations in two axes, up to ± 2 g. It can measure both dynamic acceleration and static acceleration (gravity).

The accelerator sensor is placed in a small package with a long, thin flexible cable. The package contains strong magnets to attach the sensor to magnetic (steel) surfaces without the need of screws or clamps. One side of the package contains a patch of velcro, to attach the sensor to fabric surfaces.

The Accelerometer TP-ACC20 also contains a manual trigger button. This button can be used to manually trigger measurements in situations where no trigger condition can be derived from the input signals. The manual trigger button has a solid aluminum body and is fitted with a male BNC connector. A long flexible cable with a female BNC connector is used to connect the button to the instrument.