GemRed Plastic Digital Protractor (200mm(New Version))

Accuracy that is almost perfect, and good enough for almost any use. I love the digital readout and the fact that it can be oriented in any direction. It's easy to read. I think it's necessary for me to monitor my own progress with physical therapy after knee surgery. BUT---one would think that the company would benefit from getting someone who can write with proper English grammar and sentence structure so the directions make sense. It's a small instruction sheet but go figure what they are trying to say. That is my only disappointment with the product. It might as well be written entirely in Chinese!

Super cool product

This came without a battery, and it apparently has to be calibrated before every single use. I have some concerns. It should have included a battery because now I have to go find someplace that carries that particular very small type of battery. I wouldn’t buy it again.

Product is very handy to have when doing ROM. The digit read makes reading the goniometer quick and efficient.

Checking for accuracy/inaccuracies, I set it at 90" and it read 74.7 and again set at 0/180 and it read 15.4. I am getting occasional correct reads but not trusting with my clients at this point. I had been checking several other ranges but figured those would be easiest to tell inaccuracy. Darn!!

First time using a digital gonio and I have no clue how to read it.I was taking measurement for a patient's knee flexion and the digital reading was way off. Looking at the display numbers on the ruler had a different read than what was shown on the digital display. Am I missing something, or am I calculating the difference between the two read? Any help would be appreciated.

I bought it to measure flexion in my knee after total knee replacement surgery. I can't find any way to measure flexion. It doesn't do what I wanted at all. I don't know what it measures, but it's not helpful to me at all. I would love to return it, but I lost the box it came in.

I'm an OT and I thought this would be great to use while evaluating my skilled patients. The goni is not very accurate and you have to calibrate while it's flat on a table and then only move the axis arms in a certain direction to keep it in its calibration. I honestly gave up using it and it's still in my drawer at work. Kinda bummed but now I know what there are really expensive digital goniometers.

Easy to use tool to track my ROM. My physio people find the design help to make it very easy to read.

Se requiere tiempo para acostumbrarse a trabajar con el pero buen producto

Excellent quality easy to take measurements

Very handy goniometer. Speeds up the clinical examination. Have to be careful how you reference the measurement.

El producto es igual a la descripción y foto, llegó en buen estado, con la pila y es bastante práctico el uso de este instrumento, agiliza mucho las mediciones