The components of the ML/INL191 Blood Flow meter are manufactured by Oxford-Optronix. According to some documents published by Oxford-Optronix, the specs for the Oxford-Optronix LDF meter differ from our ML191. Are the units the same?

Yes the specifications for the two units actually the same. The LDF specifications published on the Oxford-Optronix website are not be relied on as they are based on earlier instruments. Further, BioPac appear to source their LDF instrument from Oxford-Optronix and consequently, BioPac cite incorrect specifications for their LDF instrument.

Both BioPac and Oxford-Optronix incorrectly state in some media that the Laser Power at the probe tip is 0.5-1.0 mW. This is based on an old spec. In reality the Laser Power at the probe tip is < 0.5 mW (the same as the ML191; see the formal specs ).

The inaccurate specs. published by Oxford-Optronix and BioPac have created confusion because competitors have used these incorrect specs. to produce lock-out specs.

In fact, the LDF monitors sold by Oxford-Optronix and ADInstruments are classified as Class 1 Laser Products in accordance with the European Standard EN 60825-1 and 21 CFR 1040.10 and 1040.11. The maximum output power at the probe tip is less than 0.5 mW. 

For further technical assistance with this or any other issue, please contact ADInstruments Technical Support by clicking HERE.