we have the little brother or sister..lol   smart dop es-1000spm  and the 
model your describing is probably a step up. the kovan Doppler we have  is very 
reliable and gives a strong signal with a sturdy probe. some probes are  very 
delicate and break easily ... good luck

To unsubscribe or search other topics on UVM Flownet link to:
http://list.uvm.edu/archives/uvmflownet.html