For $35 it's a great choice! I'm using the Radio Shack, and my buddy is using the Ofna. His reads about 1/2 degree higher than mine does, and mine reads about 1 degree off of my other buddy's Raytek gun. Good buy!
cool deal!! i finally got to use it it helped me realize i need some holes for venting!! it ran 190-200 with the body off 240-250 with it on without any adjusting.
Radio Shack =$49.99. It's smaller than the OFNA, but for the cash I'd get the OFNA. Or better yet, the LHS here in Charlotte has the one here www.tempgun.com and it runs on the same accuracy as mine does for less money, a tiny bit smaller, and comes with a metal-padded case.