Manual Muscle Test (MMT) System Patient Chairs 5v DC Current ≤1 MSHQ 1885 5v DC Current ≤1 Music Control Ergonomic hand held device for objectively quantifying muscle strength * The test is performed with the clinician applying force to the limb of a patient * The objective of the test is for the clinician to overcome or break the patient s resistance * The MMT records the peak force and the time required to achieve the break providing reliable accurate and stable muscle strength readings that conform to most manual muscle testing protocols * Features a wide range of customizable options for data storage preset test times and force thresholds * Size: 3 9N) 1N(1000N 1335N) * Battery Life: 6 8 hrs powered on 30 minutes after low battery condition * Charge Time: 80% charge => 45 minutes Full charge => 2 hrs * Data Storage Capacity: 150 tests * Calibration Points: 31 point (Every 10lbs 0 300) * Preset Test Length: 0