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3pcs Green 0.36 Inch DC 0-30V 3 Wire LED Volt Meterr Digital Display Panel Volt Meterr
Feature: The black line connected to the public negative electrode, red line connected to positive pole of power supply, yellow line connected to positive pole of tested power supply Material: Plastic Shell Display Digit: 3 Measuring Range: DC 0-30V Working voltage: 4-30V Display Size: Approx 2.3cm x 1.2cm / 0.91' x 0.47' Overall Dimension: Approx 3.4cm x 2.2cm x 2cm / 1.34' x 0.87' x 0.79' (L x W x H) Cable Length: Approx 20cm / 7.87' Package Included: 3 x Green Digital LED Display Voltmeter