Multimeter BLOW UT61B+ UNI-T (single-phase) — digital electrical tester, model 50-210#

The Multimeter BLOW UT61B+ UNI-T (single-phase) model 50-210# is a compact digital electrical tester designed for basic measurements in single-phase systems. This handheld multimeter measures DC and AC voltage, current, resistance and continuity, providing technicians and electricians with essential diagnostic data for installation checks and routine troubleshooting. Its portable form factor and straightforward controls make it suitable for field use and quick inspections.

Advantages

The device combines a clear digital display with intuitive operation to deliver reliable readings quickly. It offers stable measurement performance across common residential and light commercial single-phase applications. Protective casing and ergonomic design support safe handling during on-site work. The tester’s measurement range selection and input protection improve usability and reduce the risk of damage from improper connections.

Suitable for

• Measuring AC and DC voltage in single-phase electrical installations
• Checking current in circuits for basic load diagnostics
• Verifying resistance and continuity of wiring, connectors and fuses
• Routine maintenance and safety inspections in households and small businesses

Key specifications

• Measurement functions: AC/DC voltage, AC/DC current, resistance, continuity
• Display: digital readout for numeric values and indicators
• Input protection: built-in safeguards to reduce risk from incorrect connections
• Form factor: handheld, portable design suitable for fieldwork
• Ergonomics: insulated housing and user-friendly controls for safe handling

How to use

Before taking any measurement, visually inspect the meter and test leads for damage and ensure the battery is installed. Select the appropriate measurement function and range, connect the test leads to the corresponding input jacks and touch the probes to the measurement points. For voltage measurements, place the probes across the circuit; for current checks, connect the meter in series where required or use the current input if designed for direct insertion. Observe the display values and any indicator icons. De-energize circuits before measuring resistance or continuity. After use, disconnect the probes, switch off the meter and store it in a dry, protected place.

Usage recommendations

Use appropriate personal protective equipment and follow local electrical safety regulations. Verify meter function with a known reference before critical measurements. Avoid exposing the instrument to moisture, strong vibrations or extreme temperatures to maintain measurement accuracy and prolong service life.