irreparable damage to the product.

Measuring range: 5-100V

Power supply range: 5-100V

Minimum start-up: 3.8V

Allowable error: ±1%

Input impedance: >100K ohms

Operating current: red <100mA, green <12mA, blue <12mA

Refresh speed: approx. 300mS/time

Display method: 3-digit round LED tube

Display colour: red, green, blue optional

Lead wire length: 20cm

Overall dimensions: 33.8 diameter

Opening size: diameter 30.3

Operating temperature: -10℃~65℃