Have you managed to get into it yet? Unfortunately as it is second hand this probably will have the previous owners own pin in it and it could be anything. Trying the manufacturers code is useless. But im my experience as others have said these are: 0000, 8888, 1234, or the enter button 4 times...
Hi there I bought the Kiler DVR from CCTV Direct and i love it. It has a mouse that helps a great deal and because its VGA only ive popped it onto my PC screen. The playback is great. I have Motion Detect on as well and havent noticed a lag in recording. Good luck with whichever you choose.