What is the difference between your NO and NC door switches?

NO (normally open) means that the internal switch is open when the magnetic module is against the switch module (door is closed). ┬áNC switches are the opposite.. the internal switch is closed when the magnet is against the switch. Most security systems call for NC door switches so if the wire is cut the alarm […]

Read More

What liquids will the WaterBug and Sensaphone water sensor detect?

Fluids that can be detected Municipal and well water Sea water Copper sulfate solution Weak acid Weak base Household ammonia Water & glycol mixture Wet soil Coffee Fluids that can not be detected Pure (distilled) water Gasoline Oil Brake fluid Alcohol Ethylene glycol Paraffin Dry soil Whiskey Anything Non-Conductive

Read More