OBD data logging

I'd like to use the wireless ones as long as they are capable of transmitting rapid changes.
Can anyone with experience using OBD loggers recommend one?
Thanks !

http://www.amazon.com/ELM-Bluetooth-...ds=obd+II+wifi
with DashCommand app on iphone
just dont buy no name bluetooth OBD scanner cause you can have problems connecting it to iphone
Does the bluetooth update fast enough to see smooth transitions on the analog gauge displays?
. http://www.zeitronix.com/Products/dashdaq/dashdaq.shtml

http://www.amazon.com/ELM-Bluetooth-...ds=obd+II+wifi
with DashCommand app on iphone
just dont buy no name bluetooth OBD scanner cause you can have problems connecting it to iphone






