US $150 each. There is a new datalogger under development that integrates a tiny GPS module with the datalogger. It is expected that this will retail for US$250 ea.
For comparison, some larger environmental dataloggers, without the advanced of this machine), sell for approx US$1000.
For comparison, some larger environmental dataloggers, without the advanced of this machine), sell for approx US$1000.
jtc