- Pen Style ECG EKG Caliper Ruler Measures Precision Drafting Divider 1pc BK

I ordered the product hoping to get it in before my last semester of nursing school but didn't realize it would be coming from China. I was a little disappointed in the fact I would have to wait 3 weeks for it to come in the mail. It was well worth it. The caliper top has a great weight to it and the caliper legs stay in place without moving. The pen top and caliper cover fits snuggly and won't fall off easily like some do when you hold it with the pen top while transferring the measurement. I find these very easy to handle and look forward to replacing my old ones.

Compact, easy to use. Clips on my lab coat pocket like any pen, no cumbersome cover for the points. The cap was a bit loose, but I replaced the rubber O ring and no issues after that (yes, I have a box of O rings, get the metric box for about $20, you’ll be surprised how handy they can be).This pen style caliper has been difficult to find, previously limited to drug rep give always. Glad to find it for sale without branding.

Very poor quality. I was so excited to get these in the mail and use them for work, and the minute I took them out of the package I was disappointed. The tip of one was completely bent and would not give accurate measurements. I sent them back the same day I received them, way too much money for something so poorly made. I'll continue to use my $7 calipers....

Its compact, the clip is sturdy, so it won't slip out of your whitecoat or pocket if clipped on. Wish it was a little easier to grip the legs to spread. Overall nice, have had to remind colleagues (senior Cardiologists) who borrowed it to give it back.

Wish it came with a ruler but is a great FKIA repellant. When I whip the calipers out I have had a few stop arguing rythmns and leave. Doesn't mean I'm right but they know I didn't just fall off the truck.

I've been wanting a pair of calipers like these for a while. The cap fits very snugly using a rubber O-ring as a seal. So far, this is holding up but I wonder how long it'll take for the O-ring to rip. Time will tell.Overall though, a good set of calipers. The tightness on the arms of mine was just right. I've gone through at least two pairs of cheaper calipers because they lack pocket clips and I lose them. So, I like the fact that this pair has a clip although it is a little tight.

What a great idea calipers that fold into an inconspicious pen casement. They are easy to remove from the pen holder, extend and remain fixed while in use reading EKGS.No complaints highly recommend

The media could not be loaded. I was looking for a caliper that was sturdier and easy to transport in a pocket. I love the design of it, but machining is poor. At a minimum, the rubber O-ring appears to be too large, preventing the two portions from connecting easily.The calipers do not securely fit into the cap, requiring them to be forced to be advanced. This intern makes it difficult to remove them for use. The motion of the calipers is not fluid, making it difficult to get consistent measurements.