Operation The timer allows setting the sublimation time through an internal 'trimmer', accessible through the hole provided on the top, and customizable according to the type of treatment. The default time is set in the 'family' mode at 1min 50sec, which corresponds to the treatment time for families on 10-frame Beehives; it is possible to set the timer to the nuclei mode by setting the trimmer to the 'core' position, which corresponds to 1min 20sec, with the help of the supplied accessory. By turning the same trimmer clockwise (to increase the time) and counterclockwise (to decrease the time), a duration from 0min to 5min can also be programmed. The end of the set treatment period is signaled by an audible warning emitted by a 'buzzer' inside the timer; it is possible to start a new treatment by pressing the 'start' button located on the top of the timer, which interrupts the buzzer and starts counting the set treatment time again. Installation The timer should be installed on the sublimator cable, and its location can be freely chosen by the beekeeper according to his or her preferences. However, it is important that the - polarity (blue wire) and + polarity (brown wire) are respected for the timer to operate properly. It is also possible to control 1 or 2 sublimators with a single timer by connecting the two wires of the same sublimators in and out. Two locations are recommended for the installation of the timer on the cable: - Close to the battery, if it is moved continuously near the beekeeper; - Close to the sublimators, leaving enough cable for the beekeeper to make the moves from one Beehive to another