PlanetSun: No I'm not "sure" Lighttech makes lamps for Hapro. I'd heard they did... but hearsay is wrong half the time.
Patrix: The meter prices are on
www.solarmeter.com . Most people start out with the regular cheapest one... Model 5.0 for total UV (which is mostly UVA). For reddening rays (mostly UVB) use the 7.0 or 7.5.
Read this about how to use:
http://www.islandsuntimes.com/04-07/measure.htm