Hong Kong generally follows UK practice - for obvious reasons - when it comes to fire appliances, and was for many years a loyal Dennis customer. One exception was, and still is, the dual roof monitors. Now equipped with built in lights, they can also serve as lighting as well as water or foam deliveries, and are remotely controlled so nobody needs to climb about on the roof any longer. Very few British fire brigades used roof monitors, but they are fairly common in quite a few countries and pretty much universal in North America.
Ed: Tyne and Wear did have roof monitors
Added by Rob Johnson on 16 November 2021.