can anyone recommend anything we have never had something hand held that detects background radiation but a new teacher has asked about us getting one so i am looking for recommendations and prices ( not too expensive)
Same here, I often keep an eye out for them second hand as I'd happily have another, handy compact little things!We've got a device called 'radcount', it's a GM tube attached to a little digital counter all housed in a nice plastic box. (I'll take a photo when I can get into the lab where it's stored). However, after a spot of googling, I don't think they're made any more which is a shame. If you came across a second-hand one it might be worth snapping it up !
Unilab geiger Tellers are nice little units got mine BNIB for around the same price on EBAY, again £450 list price for a tiny little mica windowed tube mind they are all that kind of money if you buy them from school suppliersI got a unilab geiger teller on ebay BNIB for £30. I thought I would use it at car boots to frighten vendors and get vaseline glass cheap. Never got around to it and sold it to my BHI group to use by members to check watch and clock dials.
It is actually very good but the list price is pretty steep.