LCD Character Display Modules & Accessories 20x4 Red Txt, USB Black Background
LCD Character Display Modules & Accessories 20x4 Black Txt, USB yellow/green BG
LCD Character Display Modules & Accessories 20x2 Blk Txt, USB Yellow/Green BG
LCD Character Display Modules & Accessories 20x2 Red Txt, USB Black Background
Frequency Meter; AC Repulsion; 2.75-in; 45-65Hz Range; 120V; 2% Accur.; Stud Mnt
Frequency Meter; AC Repulsion; 3.5-in; 45-65 Hz Range; 120V; 2% Accur.; Stud Mnt