This is what they have.... as decent as the radio shack one?
According to the web page below that meter only measures between 50Hz - 5,000Hz. The RS model beats that (32 - 10,000, C weighted). Can you mail order RS stuff from Canada?
I bought the Galaxy Checkmate CM-140 at Long & McQuade Musical Instruments for CDN$155. Their website only displays the CM-130 which is rated down to 125 Hz. Don't buy that one; get the CM-140 instead which is rated to 31.5 Hz.