🔌 Unleash Your Inner Engineer with Precision Power! Built-in overload and short circuit protection for peace of mind. Binding posts and snap terminals for hassle-free connections. Operates on 110/220VAC, perfect for any workspace. Adjustable voltage and current outputs for versatile applications. Digital displays for real-time monitoring of voltage and current. 0-30V Output 0-3A Output Overload Protection The Extech 380400 Resistance Decade Box is a versatile power supply solution featuring adjustable outputs of 0 to 30V and 0 to 3A, along with fixed outputs of 12V and 5V. It includes digital displays for voltage and current, ensuring precise monitoring. Designed with safety in mind, it offers overload and short circuit protection, and operates seamlessly on both 110 and 220VAC, making it an essential tool for any professional workspace.