Feature:1. [Trigger Counter Module] The counter will not increase by 1 when powered on, and will increase by 1 every time the KEY is triggered. Data will not be saved when powered off, and will be recovered to 0 when powered on again.2. [Bright Red Display] The counter module utilizes a 3 digit red digital tube display, ensuring clear and easy to read numbers in any lighting conditions.3. [Reliable Materials] Made with premium PCB board and electric components, this module is sturdy and long lasting, the performance is efficient and stable.4. [Exquisite Design] The well arranged components of the accumulator module contribute to an aesthetically pleasing appearance.5. [Compact Size] With its small size, this counter module can be easily integrated into various applications, suitable for various industries and scenarios.Specification:Item Type: Trigger Counter ModuleMaterial: PCBModel: QF MC03 3UFeatures:Power on will not increase by 1.KEY trigger will increase by 1 each time it is shorted.Data will not be saved after power off, and will be recovered to 0 after power on again..Package List:1 x Trigger Counter ModuleNote:Without memory function.