0.56 inch 4 Digit Digital Display Counter Module with Memory Function QF C04 DC4-40V Counter Module 0-9999 Counting Range

Model Number : 4 Digit Digital Display Counter ModuleType : 4-digit CountersDIY Supplies : ELECTRICALBrand Name : Aideepen : Mainland ChinaWorking voltage : DC4-40VCounting range : 0-9999Digital tube display color : Red/blueFeature:1. The products are made of high quality materials, with service life and guaranteed quality2. The product has memory function, and the data will not be lost when it is shut down3.4-digit display, ranging from 0 to 99994. Low level effective, wide voltage work, support DC4-40V5. With cumulative +1, clear zero, power off data memory function6. Two digital tube colors are available: blue and red?:Product name: Counter moduleWorking voltage: DC4-40V (recommended for use under 5-35V)Current: 30mA (12V condition)Input: Count (+1), clear zero, low activeDigital tube size: 0.56 inchDigital tube: 4 digitsDigital tube display color: red/blueCounting range: 0-9999Counting speed: 0-200Hz (i.e. up to 200 times per second)?Package included:1 x 0.56 inch 4 Digit Digital Display Counter Module with Memory Function QF C04 DC4-40V Counter Module 0-9999 Counting Range?Note:1. The external sensor must be NPN normally open.2. Connect the positive terminal of the module to the positive terminal of the power cable, and the negative terminal to the negative terminal of the power cable.?