The SR-4 is a miniature size rotary counter. Available only in 4 digits with a 4.3 x 2.8mm digits size. Input shaft is right side – top going only. Maximum count speed of 200 rpm and reset is via top push button reset.
| Display | 4digits, 4.3 x 2.8mm (White on Black Background) |
| Preset Range | 1 – 9999 (1counts per 1/10 shaft revolution) |
| Shaft Rotation |  Top – Going (Clockwise) |
| Operation Torque | 4mN.m |
| Count Speed | 200revolution/minute |
| Reset | Push button |
| Weight | 60grams |
| Operating Temperature | -5 – +40°C(Non-freezing) | Operating humidity | 85%RH maximum(Non-Condensing) |
