Over the weekend I recieved my LPM from Lasernerd and I have to say
that I'm very pleased with it. I tested it out against my Coherent Laser Check wand and also a Coherent Fieldmaster meter I also just purchased
from another source. I used a 170mW Maxy Module 658nM laser for the test.
Basically, there was maybe say 1 to 2 mW difference between the readings of all three meters. The powerhead was in very good shape except for the glue residue from the tape Mark used to cover the sensor hole for shipping. There's no scratches on the sensor, just a small mark from another laser near the very top. This will not effect the readings from the center of the sensor pad. Here's some pictures from
the dungeon.
Mark / ImageLight