laser tachometer
DT6234B - Shanghai Glentest Electronics Co., Ltd. (Glentest)
5 digit large LCD display; Measurement range: 2.5 - 99999 rpm; Best resolution: 0.1 rpm; Accuracy: +/- 0.05% + 1 digit; Working distance: 50 mm - 800 mm(DT2234C);
DT6234B - Shanghai Glentest Electronics Co., Ltd. (Glentest)
5 digit large LCD display; Measurement range: 2.5 - 99999 rpm; Best resolution: 0.1 rpm; Accuracy: +/- 0.05% + 1 digit; Working distance: 50 mm - 800 mm(DT2234C);