digital display 0.28 inch 4.7V-30V DC voltmeter( 2 line )สีน้ำเงิน

digital display 0.28 inch 4.7V-30V DC voltmeter ( 2 line )สีน้ำเงิน parameter:

Voltage range of 0.28 inch voltmeter:

- Power supply range:No need for additional power supply, directly use the tested voltage as the power supply, the range is the same as above

- Highest input:DC30.0V . Note: Input voltage higher than 30V may be permanently damaged!

- Allowable error:1% ; when greater than or equal to 10V , the error is 0.3V ; when less than 10V , the error is 0.10

- input resistance: 100K Euro

- Working current: Red 23mA

- Refresh rate:About 300mS once

- Display method:Three-digit 0. 28 "LED digital tube

- Display color: Red

- Lead length:15cm

- 0.28 inch voltmeter size range:

Dimensions

- 23 x 1 0 x 10 mm , length X width X thickness (without mounting ears);

- Length with mounting ear: 33mm

- Mounting holes

- Pitch: 2 . 8 mm , pore diameter: 2.8mm