




💪 Elevate your grip game — precision meets portability!
The Rolyn Prest Jamar Hydraulic Hand Dynamometer is a professional-grade device designed to measure isometric grip strength up to 200 lbs (90 kg) with a dual-scale readout. Lightweight and compact, it offers quick, precise readings ideal for clinical, fitness, and rehabilitation settings. While its aluminum and plastic construction enhances portability, care is advised to avoid damage to the handle, as replacement parts are unavailable.








| ASIN | B06WW9JM3V |
| ASIN | B06WW9JM3V |
| Best Sellers Rank | #400,938 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #1,022 in First Aid Hand Sanitizers |
| Customer Reviews | 4.4 4.4 out of 5 stars (8) |
| Date First Available | 24 April 2013 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 30.5 x 38.1 x 12.7 Centimeters |
| Item Dimensions LxWxH | 30.5 x 38.1 x 12.7 Centimeters |
| Item Weight | 1 kg 940 g |
| Item Weight | 1 kg 940 g |
| Item model number | 51731 |
| Item model number | 51731 |
| Manufacturer | Rolyn Prest |
| Manufacturer | Rolyn Prest |
| Product Dimensions | 30.48 x 38.1 x 12.7 cm; 1.94 kg |
| Product Dimensions | 30.48 x 38.1 x 12.7 cm; 1.94 kg |
T**C
I'm used the the old fashioned dial Dynamometer, but decided to try the digital when purchasing it for my business. It took a bit of getting used to, but now I/m very happy with it. I find it quicker to get the number than looking at the dial.
A**R
Apparently, in an attempt to make this lighter in weight, the manufacturer changed from a durable metal casting (used in the standard Jamar) to aluminum and plastic. The moveable handle is easily damaged. I dropped mine while changing positions, from a height of about 3 feet, and the handle bent so that it would no longer snap in place. I managed to bend it back using a vise and pliers so that I could use it again, but in a clinical setting this would be a real problem if it occurred during testing. I noticed that another user reported that this handle broke on their dynamometer. I contacted the manufacturer to see if replacement handles were available and was told that NO, they are not. Anyone who has used a hand dynamometer for any period of time realizes that accidentally dropping the handle while changing positions is a common occurrence. You could render your device unusable and irreparable very easily!!! I do not recommend this device for serious clinical use.
D**H
Solid!
Trustpilot
2 days ago
1 month ago