Laboratory Power Supply Uni-T UTP3305-II – Bench DC Power Supply, Adjustable Output, Multi-Range

Uni-T UTP3305-II is a bench DC laboratory power supply designed for electronics testing, development and repair. It offers adjustable voltage and current outputs with front-panel controls and clear readouts, providing stable regulation and basic protection features suitable for powering circuits, prototypes and laboratory equipment in workshops, maker spaces and educational labs.

Advantages

The unit provides selectable output ranges and precise front-panel adjustment, enabling users to set voltage and current to match a wide variety of low-voltage electronics tasks. Built-in protection mechanisms such as overcurrent and thermal protection help prevent damage to connected devices and to the supply itself. Compact bench form factor and clear controls make the power supply practical for benches with limited space while still delivering the functionality expected from a laboratory-grade DC source.

Suitable for

• Electronics prototyping and development
• Repair and testing of consumer electronics and small devices
• Educational labs and student experiments
• Bench testing of sensors, modules and low-power circuits

When it may not be suitable

This bench supply is intended for low-voltage laboratory and workshop use; it may not be suitable for high-power industrial applications that require much higher current or three-phase power. It is also not intended to replace isolated or medical-grade power supplies where specific certifications and isolation requirements are mandatory.

Key specifications

• Adjustable DC output voltage ranges with front-panel control
• Adjustable current limit for protection and precise testing
• Multiple output channels or selectable ranges for versatile use
• Clear front-panel display for voltage and current readouts
• Built-in protection features such as overcurrent and thermal protection
• Bench-friendly form factor suitable for workshop and lab benches

How to use

Connect the power supply to AC mains according to the local electrical standards and switch it on. Use the front-panel voltage and current controls to set the desired output, and connect the load to the output terminals or binding posts. Start with current limit set low, then increase voltage to required level while monitoring the display; adjust the current limit to protect the device under test. Observe the supply during initial power-up of unknown circuits and use the protection settings to prevent overload.

What to consider before purchase

• Required maximum output voltage and current for your projects
• Number of outputs or channels needed for simultaneous testing
• Space available on your bench and desired display/readout clarity
• Protection features required for your applications (overcurrent, thermal)

Usage recommendations

For reliable measurements and device safety, use short, appropriately rated connecting leads, set current limit below device ratings during initial testing, and allow adequate ventilation around the unit. Regularly verify output with a multimeter when precise voltage is required, and follow basic lab safety practices when working with powered circuits.