Measurement Variable: AC Voltage (indicated by the V symbol and the alternating current wave symbol ~ on the dial face).Measurement Range: 0 to 300 Volts AC (0–300V).Accuracy Class: 2.5 (indicated by the 2.5 symbol on the bottom right face), meaning a maximum full-scale error tolerance of ±2.5%.Operating Position Symbol: Vertical orientation installation (indicated by the perpendicular inverted 'T' line symbol ⊥ next to the accuracy rating).Safety Certification: CE Certified.Physical Profile: Built with a clear, impact-resistant transparent plastic front cover for unhindered visibility, mated to a cylindrical rear housing containing heavy-duty threaded terminal connection studs and structural mounting ears