This morning because of alarm sound from the expired battery in the smoke detector on the ceiling of my first-floor master room, I removed it and found some small black droppings on the back of the smoke detector and an small white insect (like white ants or termites?? I could not take a quick picture of the insect since it sneaked away quickly into the smoke detector). Here are some photos I took for the tiny black droppings,

Any comments or advice will be greatly appreciated,


gq