1.100% brand new high-quality products made of high-quality materials, durable and practical.
2.Fast reaction speed, high accuracy, clear display, and intuitive reading.
3.The circuit design is advanced and reasonable, with strong anti-interference ability, and can effectively suppress high-frequency interference.
4.Easy installation, simple application, good stability, and long service life.
5.Wide application range, especially suitable for DIY enthusiasts.
Parameters:
PCB size: 8.5CM * 6.3CM
Display color: red
Working voltage: DC5V
Working current: 35mA
Measurement accuracy: The measurement voltage can be calibrated to achieve high accuracy, and there are currently no parameters available.
Function:
Measure the DC voltage within 200V;
Measure the DC current within 2A;
Measure the AC voltage within 30V;
The above functions are switched and selected through short-circuit caps.
When measuring the DC voltage 0-200V, J10 short circuit cap cover, the Decimal separator switch pin 200 is short circuited.
When measuring the DC current 0-2A, J8 and J9 short circuit cap covers, and the Decimal separator switch row pin 2 is short circuited.
When measuring the AC power supply 0-30V, J11 and J12 short circuit caps cover, and the Decimal separator point switch pin 200 is short circuited.
Over range display: Display 1 or -1. If it exceeds the range too much, it may burn out the chip. Try not to use it beyond the range.
Tools required for production (not included): multimeter, soldering iron, water nozzle pliers.
Package include:
Package 1:
PCB board * 1
7107 chip * 1
40P IC holder * 1
0.56 One digit Gongyang Nixie tube * 4
KF301-2P seat * 4
3296-202 adjustable resistor * 2
104 single stone capacitors (1 additional) * 4
224 single stone capacitor * 1
474 single stone capacitor * 1
101 single stone capacitor * 2
25V 10UF Electrolytic capacitor * 2
50V 1000UF capacitor * 1
47K resistor * 1
20K resistor * 1
100 Ohm resistor * 2
1M resistor * 1
100K resistor * 1
56K resistor * 1
2K resistor * 2
5.1V voltage regulator diode * 1
1N44148 diode * 2
2.2MH color ring inductance * 1
C1815 * 1
LT431 * 1
1N4007 diode * 4
2W 0.1 Ohm resistor * 1
40P row pin * 1
Short circuit cap * 3
Package 2:
Finished Voltmeter kit * 1
