Note: voltage with yellow and red connected is40V.To measure greater than40V ( up to 100V) the yellow wire is connected to a separate voltage source that is40V or less Voltmeters: Total 10PCS, 4 colors optional; 0.28 inch LED Panel; small in size and light in weight 2 Connection Methods: 3 wires are connected separately to measure voltage and power ( yellow red is both forpos, black isneg); 3 wires are used as 2 wires, connected to measure voltage ( Red and Yellow can be pair forpos, black isneg Features: Reverse polarity-protection, voltmeter will not burn out if reverse-polarity is applied; high-precision; low starting working voltage; fine function Good: This product is materials, exquisite workmanship, very good and long service life, Manufacturer: uikios
Note: voltage with yellow and red connected is40V.To measure greater than40V ( up to 100V) the yellow wire is connected to a separate voltage source that is40V or less Voltmeters: Total 10PCS, 4 colors optional; 0.28 inch LED Panel; small in size and light in weight 2 Connection Methods: 3 wires are connected separately to measure voltage and power ( yellow red is both forpos, black isneg); 3 wires are used as 2 wires, connected to measure voltage ( Red and Yellow can be pair forpos, black isneg Features: Reverse polarity-protection, voltmeter will not burn out if reverse-polarity is applied; high-precision; low starting working voltage; fine function Good: This product is materials, exquisite workmanship, very good and long service life, Manufacturer: uikios
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