for DC 12V Power-ON Counter Module Accumulator 3-Bit Red 0.36in Digital Tube Display Trigger Counter Module Accumulator Description: Power on the calculator, each for time the power is turned on, the calculator adds one. Returns 0 when over 999. Trigger calculator, each for time get a trigger signal, the calculator adds one. Returns 0 when over 999. Parameters: 1>.Item Name:QF-MC03 for DC 12V Power-ON Counter Module/Trigger Counter Module 2>.Model:QF-MC03 3>.Work voltage:DC 6.5V-16V 4>.Work mode:Power ON mode/Trigger mode 5>.Display:0.36" 3bit Red 6>.Work Temperature:-40~85 7>.Work Humidity:0%~95%RH 8>.Size:43*23*11mm Function: Power-ON Counter Module: 1>.Each for time the power is turned on, the calculator adds one. 2>.Returns 0 when over 999. 3>.Short pads for KEY for more then 3second to clear statistical value. Trigger Counter Module: 1>.Each for time press button 'for KEY', the calculator adds one. 2>.Returns 0 when over 999. 3>.Short pads for KEY for more then 3second to clear statistical value. Application: 1>.Power-on counter/Trigger Counter 2>.Industrial control 3>.Equipment inspection Package: 1piece QF-MC03 for DC 12V Counter Module