10mm, 4 Digit Counter with Reset Function Provides the user with a resettable counter which can be installed quickly via two spring clips which are integral to the housing 1//32 DIN housing - 24 x 48 mm Counts low speed signals such as contact closure pulses Leading zero suppression Rear connection via one 5-way plug connector Counting input: N/O contact or open collector, negative edge triggered, threshold voltage 0.7V, max. 18V Maximum count frequency 10Hz, min. pulse length 25ms Reset input: as counting input Counting input NO contact or open collector, triggered on the negative edge. Threshold voltage 0.7V, max. 1.8V min. pulse length 25ms Counting frequency 10Hz Reset input As counting input Note All Trumeter products come with a 3 year manufacturer's warranty LCD Trumeter Falcon Range These multifunction, low power consumption, digital meters are all available with or without back lighting. They are housed in either 24 x 48mm or 36 x 72mm cases which clip into an appropriate panel cut-out. All have an operating temperature range of 0 to +50°C.