Check this ebay auction. its an mW output measuring device for up to 120mW.
Way cheaper to buy compared to a LaserCheck. Anyone got experience with such measuring devices?
(Remove the "###" and copy paste link,.. i dont have link-posting rights, so i dont know another way to post it...)
htt###p://cgi.ebay.co###m/120mW-Calibrated-Laser-Power-Meter-Optic-Sensor-Module_W0QQitemZ140140121629QQihZ004QQcategoryZ14954QQrdZ1QQcmdZViewItem
Info copied out of the auction:
This auction is for one (1) BRAND NEW Electronic Pre-Calibrated Laser Power Meter Sensor Module.
The HLPM comes pre-assembled and Pre-Calibrated so
you can use it as soon as it arrives.
The Laser Power Module was designed to let the hobbyist technician know
the output power of any Lasers from 400nm to 1100nm.
It uses the same optical correction as the Sper Scientific Laser Power Meters.
These HLPMs were calibrated using a Coherent LaserCheck Laser Power Meter.
Can check Lasers from 0.1mW to 120mW output power in 0.1mW increments.
Simply attach a 9 volt battery and connect the output to a Digital Multi-Meter of your choice.
(Inexpensive Digital Multimeters can be purchased on eBay for less than $10.00)
Set the scale of the DMM to 200mv... shine the Laser beam onto the
Silicone Optical sensor and read the Laser Power output directly
without the need to calculate a complicated mathematical formula.
If your DMM shows a reading of 16.7 millivolts... your Laser beam
output power is 16.7 milliWatts. It's that simple.
This BRAND NEW Electronic Item has been bench tested and is guaranteed not to be DOA.
Measures aprox. 1.5" x 0.5" x 0.4" with 7.5" leads.
Large Optical Sensor area aprox. 3.6mm x 3.6mm.
Way cheaper to buy compared to a LaserCheck. Anyone got experience with such measuring devices?
(Remove the "###" and copy paste link,.. i dont have link-posting rights, so i dont know another way to post it...)
htt###p://cgi.ebay.co###m/120mW-Calibrated-Laser-Power-Meter-Optic-Sensor-Module_W0QQitemZ140140121629QQihZ004QQcategoryZ14954QQrdZ1QQcmdZViewItem
Info copied out of the auction:
This auction is for one (1) BRAND NEW Electronic Pre-Calibrated Laser Power Meter Sensor Module.
The HLPM comes pre-assembled and Pre-Calibrated so
you can use it as soon as it arrives.
The Laser Power Module was designed to let the hobbyist technician know
the output power of any Lasers from 400nm to 1100nm.
It uses the same optical correction as the Sper Scientific Laser Power Meters.
These HLPMs were calibrated using a Coherent LaserCheck Laser Power Meter.
Can check Lasers from 0.1mW to 120mW output power in 0.1mW increments.
Simply attach a 9 volt battery and connect the output to a Digital Multi-Meter of your choice.
(Inexpensive Digital Multimeters can be purchased on eBay for less than $10.00)
Set the scale of the DMM to 200mv... shine the Laser beam onto the
Silicone Optical sensor and read the Laser Power output directly
without the need to calculate a complicated mathematical formula.
If your DMM shows a reading of 16.7 millivolts... your Laser beam
output power is 16.7 milliWatts. It's that simple.
This BRAND NEW Electronic Item has been bench tested and is guaranteed not to be DOA.
Measures aprox. 1.5" x 0.5" x 0.4" with 7.5" leads.
Large Optical Sensor area aprox. 3.6mm x 3.6mm.
Of course, it will work the same if not better than his does - which is not at all. It is total crap, and a complete waste of money, I assure you - it will respond to red a little bit, but there is some math involved, and it is far from accurate. I could whip up one of these from parts found at radio shack just like he does - and sell the hell outta them to unsuspecting peeps - but I have morals and a much better view of my fellow human beings than this A$$HOLE does. He rips people off, and then hammers them in feedback if you complain. I am telling you - beware of this clown - he is a total scam artist, and a total jerk - you WILL REGRET doing business with this guy - no joke !!!
. You know what else silicone is used for? 
