MNarctic

I have a customer that needs to mount a wireless camera to a piece of manufacturing equipment. The camera needs to pick up a image 6' away or less and can be permanently focused on spot. I am unable to get wires to the device that moves but do have AC and DC power available. The device moves on a straight track up to 200' and is a very smooth motion and really does not need to provide a picture until the device stops at the end of the run. The lengths of the runs very. There is currently 2 Linksys G-Band WAPs already in the MFG area. I figured for that distance a clear picture should be easy to find. I demo'ed a TrendNet IP-100w. Cheap I know, but thought it would work. I am unhappy about picture clarity. Are all the network cameras so digitally "blocky"? I could also use a network camera hooked to a separate WAP if it does not come wireless. I also need one camera in a high heat environment. The camera will be close to a heat source for viewing for about 1-2 minutes, then moved away. I have the ability to mfg a aluminum enclosure and feed with air pressure to keep it cool if needed. Anything that will be able to handle a couple of hundred degrees? This does not need to be wireless. At the end of the day, I need 4 cameras, and one place to view. I need to record for 1 day, then it can be overwritten. Suggestions, ideas, recommendations, all welcome. Thanks.