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℃