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Good project!I see that your charge controller is a fused one. I have come across several that are not fused so it is a good idea to include a fuse in your battery supply line if that is the case. Personally I would find it handy on your drawing to note that the reed switch is activated by the door.
I've had several years experience working with a very similar system and using 12V LED lights is much more energy efficient. I've also had several batteries fail to such an extent that they cannot power the inverter for more than 15 minutes because of hard use however they can still power LED lights for more than 8 hours!
Paper Mache With Glue
Tools and Materials for Paper Mache
Paper Mache Class
Meat Cooking Basics
Beginning to MIG Weld
Welcome to Welding
Welding Tools and Materials
Another point to consider when selecting a multimeter and working with AC circuits is whether you need a true RMS meter. A lot of the cheaper models aren't true RMS capable. See the link below from a reputable manufacturer (my preferred one).http://en-us.fluke.com/training/training-library/measurements/electricity/what-is-true-rms.html
LCD screen for under $35 (recycle old laptops)
Printer Rock Tumbler - with adjustable speed, leds, and different jar sizes