The clinical grip-strength meter, taken apart. A sealed hydraulic system turns a squeeze into a reading on a dual kilogram and pound dial, and a peak-hold needle keeps the highest value until it is reset.
Optimal Health · BarrieHand dynamometer · Grip strengthDrag to turn · hover to take apart · G · R · HDrag to turn · tap to take apart
Body: aluminium casting, cover, sealed channel, two boresHydraulic path: pistons, channel, Bourdon tube (leaf)Gauge: dial, needles, crystal, reset knob, rubber cap102 convex parts, re-projected and re-shaded every frame. Squeezing pulls the handle toward the body; its forks push the two posts into their bores, and the sealed fluid carries the pressure to a Bourdon tube that turns the needle. The peak-hold needle stays at the highest reading until the knob on the crystal turns it back. G squeezes, R resets the peak, H moves the handle to the next of its five positions.
Dragturn it
Atake it apart
Gsqueezes the handle
Rturns the reset knob
Hmoves the handle to the next position
Drawn as the clinical-standard hydraulic design: five handle positions from 35 to 86 mm, a 0–90 kg / 0–200 lb dial and a peak-hold needle, from the manufacturer's user manual and published clinical protocols. Overall size, the internal layout of the body and the handle clip are estimates; handle travel is shown larger than on the real, near-isometric instrument. Geometry only: no photographs.