Description

Toky DM Digital Panel Meter with following features:
Current watchcase, delication;
Precise measuring, reliable performance;
With decimal point setting function;
4 or 5 digit LED display;
Optional Voltage/Current/Frequency measuring range.

Its technical specification is as below:
For Voltage/Current Meter:
1) Max display: ***9(3*1/2), ****9(4*1/2);
2) Input mode: Single input;
3) Measuring mode: Dule A/D convert;
4) Measuring rate: 2.5/S;
5) Overload indication: "*1" or "1" (3*1/2); OR "***0" or "****0" (4*1/2) LED flashes;
6) Polarity display: "-";
7) Power suppl6y: DC 5V+/**0%<=*0mA (3*1/2); DC 5V+/*0.2<=*0mA (4*1/2);
8) Ambient temperature and humidity: ***0C <*5%RH.

For Frequency/Counter Meter:
1) Input impedance: >*0K;
2) Input voltage: ***5V;
3) Input wave type: Square wave and Sine wave;
4) Max input voltage: *5V;
5) Range of frequency: 0.***0KHz;
6) Counter speed: <=***0CPS;
7) Decimal point: Auto convert;
8) Overload displaying: "UUUU" or "UUUUU";
9) Power supply: DC*5V+/**0% <=*0mA (*2VDC or *4VDC is available);
*0) Ambient temperature and humidity: ***0C <*5%RH.
*1) Accuracy of frequency: +/*0.*5%+/*1digit(DM4A-FR1, DM4B-FR1)';
+/*0.*5%+/**0digit(DM5C-FR1) (*3+/*2C ****5%RH)