Camera finder says 23 cameras meet the description of 2-3 MP, IP with NTSC output, under $600.
Btw, I am a little nervous with those results because many cameras have NTSC output but don't work full time or have side effects.
For instance, the lowest cost match, the DND13TL2, says 'Setup/Service BNC Video Out' which implies that it will not work in the application David is requesting.
As the Samsung rep for the southeast we run into this quite often. Typically someone is looking to run a spot monitor via the analog and have the network run back to the NVR. Samsung's WiseNet III chipset models will accomplish this at a full analog rate without concern. It's been tested and utilized on countless applications. Any of the following models would work for your application: SN*-6084 (2MP series available in a box, dome, or bullet) SN*-7084 (3MP series available in a box, dome, or bullet) Along with many others. The most inexpensive model would be the SNV-6013- 2MP, vandal mini dome, 2.8mm fixed lens, IP66 & IK10 Samsung also released an entire low cost megapixel line known as their WisNet Lite series. Unfortunately I cannot find anything mentioning whether they have the analog output which leads me to believe this was one thing left out of the WiseNet Lite series.
IPVMU Certified | 05/03/15 02:41pm
The GeoVision BX, FD and VD series models have "TV-Out Support" up to and including the 5MP devices. We've used them when we need to maintain a picture to an existing analog switcher system. We have had very good luck with them. You turn it on in the menu system. It is an NTSC output based on the second video stream. So you need to change the default second stream from 320x240 to 640x480 to get a decent picture. You'll also have a bit of underscan - black bars on the sides of the picture - but it works at the same time as both IP streams. The customers we've used it on don't mind the bars. They get to see the picture on their analog switcher and know that the recording is still a high quality megapixel.
They change models occasionally; just make sure the spec says "TV-Out support" on the model you pick.