Specification: Display range: -199999~999999, decimal point position can be set Display: 0.56" red high brightness LED Counting accuracy: 0.005% Maximum input frequency: 30KHz (grating meter 15KHz) Input signal waveform: square wave, sine wave, triangular wave Input pulse signals: NPN, PNP, open collector, biphase orthogonal pulse, optical interrupter, contact switch, contactless switch, incremental encoder Input signal voltage: high-level H=4-30V, low-level L=-30-0.6V Preset output: Relay output: Contact capacity 220V AC/3A Open collector output: voltage less than 30V, current less than 100mA Instrument power supply: 85-265VAC, power consumption less than 4VA (other power supplies can be customized) Working environment: 0~50°C, humidity below 90% RH External size: 96 * 48 * 82mm, opening size: 92 * 45mm Features: Built-in accumulation counting, addition and subtraction counting, and phase recognition counting Selectable counting speed Optional relay or open collector output Equipped with power-down memory function Scalable multiplier to set proportional relationship between counting and display values, range 0.0001–99.9999 Provides 5V and 12V DC output for sensor Over 10 types of relay actions available with selectable delay functions Package included: 1 x Digital LED Counter