I put batteries in the strobe and confirmed that it lights up with the strobe light on the optical fiber. I confirmed that the moisture alarm works properly. After that, I removed the batteries. Batteries are not included with this listing. This is because there is a possibility that the product will not be able to be shipped due to the airline's inspection when it is sent by airmail. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying. These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shippi.