The RG-11 may also provide drop detection. Use this mode if you want to do your own external data interpretation. This may be useful if you want a system to do something at the first detected drop. The output will pulse once with each detected drop. Normally, it will produce longer pulses (in multiples of 200 mS) for larger drops. If set to multiple pulses per drop (SW 3 ON), each detected drop will generate one or more 100 mS pulses, depending on drop size. See the RG-11 instructions for details on using the drop sensing mode.