Hi all,
Another option for you could be the Analog Devices ADXL05 accelerometer.
This is extremely sensitive and costs about US$27.00.  The AD site has the data
sheet in PDF format.
The output has to be filtered to remove the high frequency noise and then
passed through a lookup table to produce an angle output (Sin func.)

HTH
John

> I deal with both these companies on a weekly basis. The particular Spectron
> sensor you refer to is a very expensive one meant for commercial aircraft.
>
> Both companies make a dual-axis sensor that is more affordable and gives
> two axes of output. $50 is about what it will cost in quantities of one.
>
jcp@intsol.com.au
Integration Solutions
702 Henley Rd
Kangaroo Ground  Vic 3097
Australia