مقياس رقمي متعدد بحجم راحة اليد (UT33B) يقيس (200-600V) فولت

The UT33B can measure AC/DC voltage, AC/DC current, resistance, capacitance, frequency, and duty cycle. It also supports diode testing, continuity (beep), and temperature measurement. It features a backlit LCD display, data hold, auto power off, and a low battery indicator.

Voltage range: 200V to 600V. It is a palm-size, lightweight meter powered by a 9V battery. It includes a backlit display, data hold, auto power off, and low battery indication. It also has overload protection and high input impedance, suitable for accurate readings in low-current applications. Operating temperature is 0°C to 40°C.

Power the device on, select the appropriate measurement mode with the dial, and connect the probes to the correct inputs for the test. De-energize circuits whenever possible, use proper test leads, and avoid measuring voltages beyond the specified range. Follow standard safety practices when working with electrical equipment.

The UT33B is powered by a 9V battery. It includes auto power-off to conserve battery life and a low battery indicator to alert you when replacement is needed.

The device includes a backlit LCD display for better readability in dim environments and a data hold function to freeze the current reading on the screen for easier capture.

For alternatives on Fepy, you can compare with models like the UNI-T UT33D (200V-600V palm-size DMM) at https://fepy.com/product/uni-t-ut33d-200v-600v-palm-size-digital-multimeter and the UNI-T UT33C (200V-600V palm-size DMM) at https://fepy.com/product/uni-t-ut33c-200v-600v-palm-size-digital-multimeter. You can also look at the UNI-T UT61E (6000-count DMM) at https://fepy.com/product/uni-t-ut61e-6000-count-digital-multimeter to compare features like display resolution and range.

Ideal for electronics hobbyists, DIY repair projects, car and automotive electrical diagnostics, small appliance maintenance, and general electrical troubleshooting where a compact, affordable DMM is beneficial.

To replace the battery, open the battery compartment, remove the old 9V battery, insert a fresh 9V battery with correct polarity, and replace the cover. When storing, keep the meter in a dry place away from direct heat or moisture, and remove the battery if storing for an extended period to prevent leakage.

Use the data hold button to freeze the current measurement on the display for easy recording. Auto power-off helps conserve battery life after a period of inactivity; you can resume testing by powering the meter back on and selecting the desired function.

Yes. The UT33B offers essential measurement functions (voltage, current, resistance, capacitance, frequency, and more) in a compact, affordable package with features like backlit display and data hold, making it a solid choice for learners and hobbyists.

Do not exceed the specified voltage range (200V–600V). Keep fingers and conductors away from live circuits, use proper test leads with good insulation, and follow standard electrical safety practices. For high-energy systems, use appropriate PPE and ensure circuits are de-energized whenever possible before testing.