Relay Module DR21A01 DC 5V/10V 1-Channel DPDT Signal Relay Module Polarity Reversal Switch Board

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signal generator DR21A01 DC 5V/10V 1-Channel DPDT Signal Relay Module Polarity Reversal Switch Board Measuring Tools

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Relay Module DR21A01 DC 5V/10V 1-Channel DPDT Signal Relay Module Polarity Reversal Switch Board 2026 - buy cheap

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Relay Module DR21A01 DC 5V/10V 1-Channel DPDT Signal Relay Module Polarity Reversal Switch Board - specifications

Relay Module DR21A01 DC 5V/10V 1-Channel DPDT Signal Relay Module Polarity Reversal Switch Board - photo 2026

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Product specifications

Brand Name: VBESTLIFE
Origin: CN(Origin)
DIY Supplies: ELECTRICAL
Certification: NONE
Display Size: 2.9 Inches & Under

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