DIGITAL Red 5 LED Frequency Tachometer Speed Converter Motor Car Meter DC 7-12V

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F<br>eature:<br>Power supply: DC 9-12V<br>Measure Range:<br>Frequency<br>: 0.1-99999Hz<br>Rotate speed<br>:30-99999 r/m<br>Maxed Display:<br>99999<br>High<br>frequency<br>measurement accuracy<br>, which could reach<br>to<br>0.01<br>‰<br>at 25 ° C<br>,<br>resolution could reach to<br>0.001HZ<br>.<br>Wide<br>range<br>of<br>frequency   measurement<br>:<br>0.15HZ<br>-<br>100KHZ<br>.<br>Measuring range could be automatically switched<br>from<br>00.000Hz<br>(<br>R<br>/   M<br>)<br>to<br>000.00KHz<br>(KR<br>/<br>M)<br>.<br>Work Modes:<br>Frequency meter<br>/<br>Tachometer<br>, you may change the<br>mode via press the switch;<br>Hold the work mode when power off<br>Keys to set<br>the<br>divider<br>value<br>,<br>divided  by<br>the value of<br>1-99999<br>and<br>0.0001-9.9999<br>file,<br>the<br>frequency<br>value of<br>power-down<br>save<br>Beautiful appearance<br>, sophisticated technology<br>and easy to use<br>Specifications:<br>Specifications<br>Frequency meter<br>Tachometer<br>Display Digit<br>0.56" 5-digits LED<br>Display<br>refresh ra<br>te<br>Signal frequency > 3HZ : 3 Times/ Sec<br>Signal frequency ≤ 3HZ: about singnal frequency<br>Over Flow Display<br>“- - - - -”<br>measurement accuracy<br>0.1%±1digit / Special: 0.01‰ @ 25℃<br>Measure Range<br>0.15HZ—100KHZ<br>9r－999.99Kr/m<br>input signal<br>Signal Type<br>Dry contact、PNP、NPN、Pulse<br>amplitude<br>3－30V or 30-300V(High Voltage)，this could be changed via adjust the<br>Short circuit<br>Measurement Method<br>Full synchronization period measurement<br>Input Resistance<br>100KΩ<br>Power Supply<br>DC9-12V<br>Withstand voltage<br>AC2000V 1min Between the External terminal and the shell<br>Anti-vibration<br>Vibration Frequency ：10－55HZ，  Acceleration: 50m/s2<br>X、Y、Z, each direction 5min X 10<br>Operating Temperature  and Humidity<br>Temperature:－30℃－＋70℃<br>Humidity:　25－85%　RH<br>Storage Temperature<br>－40℃－＋80℃<br>Panel Dimensions<br>(mm)<br>79X43X25（L×W×H)<br>Cut-out Dimensions<br>(mm )<br>75X39.5<br>Function Selection:<br>Frequency and Rotate speed display Set<br>(Please d<br>isconnect the input signal<br>before setting when the input signal is<br>High level voltage signal)<br>Open the back cover<br>of the meter, you will find two keys switch " S1" and "S2"<br>Press<br>"<br>S2<br>" key to enter "SET" model and then press "S1" to change display mode<br>,<br>"0"<br>means<br>Frequency display<br>with filter ;<br>"1"<br>means<br>rotate speed<br>with<br>filter;<br>"2<br>"<br>means<br>Frequency display<br>without filter ;<br>"3"<br>means<br>rotate speed<br>without<br>filter.<br>10 seconds<br>later,<br>this meter will<br>automatically<br>return<br>to<br>the<br>measur