I also have the omron HJ-112 and it is absolutely awesome. You will not regret it. I got mine on amazon.com for 19.99. Go to amazon and search it and read all the great reviews about it.
I have the hj-112 as well but I got a second months ago for clearance at wal-mart when my first went through the laundry. Although I think the actual problem was it needed a new battery. After it dried out it had the battery picture showing and didn't do anything. When I was going to go get a new battery to try I found a the HJ-112 on clearance for 7 bucks and figured I'd just get a new one instead.
I also recommend the Omron HJ-112. It is easy to set up & use. It is slim-line and you can put it in your pocket or in a bag/purse you are carrying. Mine went into the washing machine and was filled with water, wasn't working. I took it apart using an eyeglass tiny screwdriver and let all the bits and pieces dry out overnight, put it back together and it is still going strong!
I purchased from the store link here at 3FC via Amazon.