Digital multimeter for measuring voltage and current | UT133B

The UT133B is a palm-sized portable digital multimeter featuring a modern and ergonomic design. Equipped with an intelligent ADC chip, it is specifically engineered for professional and residential electrical applications. The device utilizes a manual ranging system, providing technicians with full control over the selected measurement precision.

1. Technical Specifications

Display Resolution: 6000 counts. Measurement ranges:

• DC Voltage: 600mV to 600V, accuracy ±(0.5%+3).
• AC Voltage: Up to 600V, accuracy ±(1.2%+3).
• DC Current: 600μA to 10A, accuracy ±(1.0%+2).
• Resistance: 600Ω to 60MΩ, accuracy ±(0.8%+2).
• Capacitance: 9.999nF to 9.999mF, accuracy ±(4%+5).
• Battery Testing: For 1.5V and 9V batteries (Status: Good, Low, Bad).
• Diode and Continuity: Equipped with a continuity buzzer.

2. Key Features

• Drop Resistance: Up to 2 meters.
• Non-Contact Voltage (NCV): Detection without direct wire contact.
• Protection System: Audible alarm for overvoltage or overcurrent.
• Advanced LCD: Backlit display for dark environments.
• Power Saving: Auto Power Off (manual override available).
• Data Hold: Freezes current reading on screen.
• Practical Design: Built-in kickstand and test lead holders.

3. How to Use

• Power On: Rotate the dial from "OFF" to the desired function.
• Connecting Probes: Black lead in COM port, red lead in VΩmA port (or 10A for high current).
• Manual Ranging: Select the correct range; "OL" indicates the value is out of range.
• NCV Function: Press the NCV button and move the device tip toward the wire to detect live voltage.
• Data Hold: Press the HOLD button to freeze the reading.

4. Additional Information

• Weight: Approx. 255g (with batteries).
• Dimensions: 155mm x 76.5mm x 49mm.
• Power Supply: 2x 1.5V AAA batteries.
• Safety Certifications: CE, UKCA, cETLus; CAT III 600V safety rating.

Note: Unlike the UT133A (Auto Range), the UT133B is Manual Range and includes a dedicated battery test function.