Can you plz put a CR on this trap???

[Kerilstrasz]

I m sorry i post here.. maybe this should belong at the homebrewed section
but i don't need your help to make smthing but to determine its CR.

Poison Dart Trap: mechanical; location trigger;
delayed 1 round; reset trigger; delayed 1 round;
Total of 3 resets;
Atk +8 ranged (1 plus poison, dart);
poison (drow poison, DC12 Fortitude save resists,
unconsciousness/unconsciousness 1d4 hours);
Search DC 17; Disable Device DC 18.

The main mechanism of the trap is located into a wall
at the turn of a 5' wide corridor. The trigger is
a 4 by 4' pressure switch on the floor 4 squares far
from the wall that houses the trap. The reset trigger
is a 4 by 4' pressure switch on the floor, next to the
trap, just after the turn at the 1st square.
Both pressure switches need a Search 17 & a
Disable Device 18 to become neutralized.
The wall covering the trap has a small hole where
the darts exit. The hole is small enough so a
Spot 20 is required to spot before pass the 1st
trigger & a search 12 from point blank distance.
http://img818.imageshack.us/img818/277/511155.png

There is also a 2nd trap with the exact same numbers, but with blindness
poison with the same DC... (so plz put a CR on that too)

you may notice that i have altered some of the numbers (nerfed actually),
so.. with all the changes in the above description, what is the CR?

[Averis Vol]

that trap is no more then CR 1. The DC is easy to hit and the search is, on a max ranked rogue, a roll of probably 10 needed to find it.

[Deaxsa]

easy to find, easy to not get affect, yea this CR wuold be realtively low, probably 1. Fortitude save dc 12 is something even a first level toon should be able to avoid, unless he's getting hit by multiple in succesion, and ANY failure means bad things. with that said, both traps being right next to each other, it might be CR 2, probably each is cr 1 on its own.