Yes they are the old models the one on the left of my linked post and the software is v2.14 no further updates and are the RS232 interface "but I have the RS232 - USB adapter" but 4mtrs is way OK where I go. But if I was in the East coast of OZ would need to be more careful coz of them thar blackberry bushes and creeks/rivers full of water, and creepy crawly's. huh