Box of trick will handle 40 sensors, however currently we only have 10. Reliable, accurate temperature probes are actually quite expensive and not something I can scavenge

Bubble generator and pump timers and relays

Sensual spaghetti

Bubble return duct. Not monitoring equipment, but I don't have a section for this part yet

Part of a sensor array on outer skin and inside cavity. There is also a sensor on the inner skin, but bubbles here prevent it being seen

Independent environmental meter

North/south bubble fill selector