Have you checked this type tilt-sensors , for using in truck .
Dual-axis, operating temperature -40...+85 Celsius,
I made pre-design for my client with these few years ago
An industry leader in design & development of tilt measurement systems, our tilt sensors are the hallmark of accuracy,
repeatability, and reliability. Products include TrueTILT™ metal & glass, single and dual axis, electrolytic tilt sensors,
inclinometers, inclination sensors signal conditioning electronics, packaged tilt sensing assemblies, tilt switches,
and on/off switches.
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they have mini signal conditioner boards too
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I remember that prices for
0729-1751-99
Mini Signal Conditioner Assemby with 0717-4318-99 Dual Axis Sensor and SPI Interface
price was about $50 when ordered < 10 pcs three years ago.
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Other manufacturers...
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