Everyone should check out the group buy I just started over at the CPF.

Here's a mini review.



Here are a few of the features:



Linearity test comparing calorimeter laser meter reading with the LPM-1:


Result: less than 2% error within spec. range.


Features:
· Autoranging measurement of light power in 4 ranges from ~100 uW to 100mW (800mW with ND8 option)
· At least 5% accuracy over native range
· Multiple sensor calibrations for different wavelengths :473,532,635,660, and 808nm selectable in a menu.
· 16 character by 2 line alphanumeric display
· 3 Pushbuttons provide control of measurements & configuration using a simple menu system.
· Automatic 5-minute power down to extend battery life (can be turned off for datalogging)
· RS232 datalogging capability at 57600 baud
· Peak hold remembers the peak reading in a series
· 2Hz (2 samples/sec) update and logging rate, 400Hz internal sample rate
· Sensor at top of meter for easy, safe readings
· Ruggedized internal surface mount construction
· Rubber side grips

Group buy special price: $150
Normal Price $180



Optional features:
· Range extending ND8 neutral density filter included and calibrated $10
· RS232 datalogging pre-built cable $32 OR
· RS232 datalogging DIY kit $15
· Backlit display $10

The kit schematics for the RS232 interface will be posted free for those who can build their own.