UL, CE. CTR24 LCD Impulse Counter Series. Display comprises of an 8-digit LCD with a digit height of 8 mm The device is powered by a lithium battery Counter inputs: solid state (4 30 Vdc) or voltage (10 260 Vac) Reset on panel or external with inhibition option Backlit model available Counting directions can be selected with input Accessories for 50 x 25 mm cut-out