$140 + GST for one - if there are several on one site we drop down the price for subsequent ones depending on number.  I have heard prices up to $220 around, but depends on where you are based.  I would imagine Auckland is at the higher end.

That price is for testing only - repair work is additional.

I'd have a rate for additional 1 - 4 then 5 - 10, then 10 and over - that way you can scale down depending on numbers.  for 1 - 5 $100 may be too cheap, but for over 10, if they are geographically close then you could drop to $80 per.  Depends on what else you could be doing and how long they take.  Remember there is the time to test, and you need to build in the admin time to do the certificate as well, cost of printing it off too...  Otherwise sounds pretty good.

hi guys, Rod Roc, jax was quoting the cost of testing rather than buying these units but the best deals come through`Hydroflow nz`cheers