Suggestions on Test Pens

[DLock3d]

Can anyone suggest some good test pens? It's long overdue that I purchased some and I would like to get some ideas on what people have had the most success with. PH and all the other test pens as well.

[pcsb23]

I have a few :o the HM PH 200 is a good reasonably priced handheld, quite fast and easy to use and you can replace the probes too!
http://www.tdsmeter.com/products/ph200.html

I also have a hanna combo, (the ph probe has gone - but is replaceable) and it is excellent, bit more costly than the HM (at least in the UK) http://www.hannainst.com/product/?id=030&ProdCode=HI%2098129

[fishorama]

I have a HM TDS-3 I got on e-bay for ~$18 shipped