Post navigation Pulsed laser energy meter China factory price digital big touch screen 30mm diameter 1064nm 532nm energy meter lcd display 1PCS 3296W 3296 50 100 200 500 ohm 1K 2K 5K 10K 20K 50K 100K 200K 500K 1M ohm 103 100R 200R 500R Trimpot Trimmer Potentiometer