3D angle measurement instrument

Accelerometer augmented precision compass

Accelerometer augmented precision compass

Accessory for carpenter levels

Accuracy indications for an electronic compass in a portable...

Accurate level sensor

Active positioning of downhole devices using spherical motors

Adaptable tip sensor

Adapter for facilitating measurements of vehicle drive train com

Adjustable length level

Adjustable length level device with internal locking mechanism

Adjustable level

Adjustable level

Adjustable magnetic compass

Adjustable plumb bob and line capable of automatic braking and r

Adjustable plumb level

Adjustable plumb/level

Adjustable post level brackets

Adjustable side draft indicator

Adjustable spirit level