504D Double Guard Stinger Shock Sensor

What are the dimensions of the sensor? I know the description says 5×5×5 in. but i didn't know how accurate that was

How much current at 12 vdc can it safely sink to ground? i want to trigger a relay that requires roughly 100ma

Want to hook another one on my viper alarm, both ports used, how do I splice this in? Can I just wire it into the existing green wire from the 1st one

can you daisy chain 2 of these to put them in different areas of your vehicle?