The Universal Coin-Operated Lock from Monarch Coin & Security can be made to accept nickels, dimes or quarters, or one of a number of tokens, allowing the operator to control usage. Using tokens allows the operator to have a face-to-face contact with whomever is using the facilities, or restrict access to customers. There are no keys to pass out and retrieve and the facilities remain locked. They are ideal for campgrounds, service stations, airports, theaters, laundromats, parks, and any place where access must be controlled. They help promote cleaner facilities, offer customers added security and generate revenue. The user inserts the appropriate coin/token in the entry slot at the top. The customer turns the handle and enters the facilities and the door will latch as it closes. The lock will accept no further coin, and will display “IN USE” in the window. When the customer exits the facility, the inner door handle opens the door, and the door relatches on closing. The display will show “VACANT,” ready for the next patron, requiring another coin before it can be opened again. 800/462-9460; www.monarchcoin.com.