โวลต์มิเตอร์ดิจิทัล Ac 70-500V จอแสดงผล Led 2 สาย โวลต์มิเตอร์ ทดสอบแรงดันไฟฟ้า
Description:
This voltmeters wiring is simple it only need to connect two wires the red wire is to connected to positive pole the black wire is to connected to negative pole.
There is protection when the wires arent correctly connected the electric circuit wont be bummed.It has reverse connect protection.
This voltmeter doesnt need external drive working power it can work with measuring voltage the working voltages range is 70-500V.
Good stability and high measurement accuracy. With trimmer potentiometer.
Easy to read install and use. No need external power supply.
Specification:
Item Name: Digital Voltmeter
Measuring Range: AC 70V - 500V
Power Supply Range: AC 70V - 500V(No additional power supply needed direct use the measured voltage as a power supply.)
Maximum Input: AC 500V(Note: Input voltage higher than 500V may be permanently damaged!)
Allowable Error: ±1%
Input Impedance: >1MΩ
Working Current: Red: <23mA Green: <18mA Blue: <17mA
Refresh Speed: About 300mS/time
Display Mode: Three-digit 0.56 LED Digital Tube
Display Color: Red Green Blue (Optional)
Lead-cable Length: 20cm/7.87 (Approx.)
Operating Temperature: -20℃ - 65℃
Size: 4.7cm x 2.9cm x 2.1cm/1.85 x 1.14 x 0.83 (Approx.)
Package Included:1 x Digital Voltmeter
Note:
Due to the light and screen setting difference the items color may be slightly different from the pictures.
Please allow slight dimension difference due to different manual measurement.
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