Clinical Hydraulic Hand Grip Dynamometer—5 Adjustable Handle Positions | 0–90 kg

This professional-grade hydraulic hand grip dynamometer is the gold-standard clinical tool for objective, reproducible grip strength assessment — used by physiotherapists, occupational therapists, hand therapists, sports medicine practitioners, orthopaedic surgeons, and rehabilitation clinicians worldwide for measuring isometric grip force in assessment, rehabilitation monitoring, occupational health evaluation, and research.

Key Features :

• ✅ Hydraulic mechanism — consistent, drift-free, maintenance-free measurement
• ✅ 0–90 kg / 0–200 lbs dual-scale analog dial gauge
• ✅ Peak-hold indicator needle — retains maximum contraction value post-release
• ✅ 5 adjustable handle positions — full hand size accommodation + five-position test capability
• ✅ ASHT protocol compatible — standardised handle geometry matching Jamar normative database
• ✅ Metal frame — precision construction for measurement accuracy and clinical durability
• ✅ Bilateral testing compatible — identical measurements from left and right hand in the same session
• ✅ CE marked — conforming to applicable medical device directive requirements
• ✅ Needle reset button — one-touch peak-hold needle reset between repetitions

Clinical Design — Built for Professional Use

1. Precision Hydraulic Mechanism The hydraulic fluid transfer mechanism converts compressive grip force into gauge pressure with minimal friction artefact and no electronic components to fail or require calibration. The hydraulic system ensures consistent linearity across the full measurement range — from the first kilogram of force through to maximum capacity — without the drift, temperature sensitivity, or signal noise associated with electronic load cells in lower-quality devices.
2. Analog Peak-Hold Dial Gauge The large-face circular analog dial gauge provides instant visual force readout — clearly legible at clinical working distances without requiring the patient or clinician to look at a small digital display during the squeeze. The peak-hold indicator needle retains the maximum force achieved during each contraction after the patient releases — enabling the clinician to read and record the result without requiring the patient to maintain the squeeze. The gauge displays in both kg and lbs simultaneously, accommodating international clinical and research conventions without conversion.
3. Five Adjustable Handle Positions The handle-to-grip distance is adjustable across five standardised positions (typically 1–5, corresponding to approximately 3.5cm incremental increases in handle span) — enabling precise fit across the full range of adult hand sizes from small female hands through to large male hands. The American Society of Hand Therapists (ASHT) standardised grip strength testing protocol specifies the second handle position for routine clinical assessment — and the five-position capability enables the clinician to conduct the five-handle-position grip strength test, mapping force across the full grip span curve to identify grip weakness patterns, pain provocation positions, and sincerity of effort profiles.
4. Ergonomic Frame Construction The precision-engineered metal frame provides the structural rigidity needed to transmit grip force directly and accurately to the hydraulic mechanism without frame flex or energy absorption artefact — a quality concern with lower-specification polymer-framed alternatives. The frame geometry follows the standardised Jamar-protocol dimensions that ensure measurement equivalence with the normative database values upon which clinical interpretation depends.