The scanner comes configured with the laser always-on, I can't find a way to keep the laser off until pressing the scan button. It's a minor annoyance, and certainly not problematic enough to keep me from recommending the scanner. The scan rate is good.
Easy setup, automatically detected by Linux when plugged into a USB port, long USB cable included, scans multiple bar codes; Laser diode; Good price at under $100; Good scan rate
No trigger; Instead, it has placed an activation button on top of the scanner