Review on HNBun Calipers Measuring Electrocardiogram Divider by Ted Higdem

Based on the picture and previous experience I thought it was a cheap and flimsy device but it is actually amazing. Not only is it very well built and accurate, it doesn't open and close like a butterfly knife, allowing the user to hold the degree marks made / maintain the set angle for measurements. Devices that cost $22-$26 were either really overpriced as I am very happy with what this device does AND only $9.99.