I fitted a radio pager to my Datatool alarm, nearly 1/4 mile range in town and virtually line of sight (1 mile) in the open, any further than that and I'll be knackered by the time I got back to the bike. Nice feature is that for 15 minutes it shows an symbol to show you are in range, not so nice is that it has no vibration alert, and the pager sound is too low for noisy pubs etc. |