Are you in search of a top - notch multimeter? We're excited to present our long - time favorite, the Extech EX330! This 12 - function mini multimeter comes with a non - contact voltage detector. It's an autoranging DMM with a temperature function, winning the EEVBlog Multimeter Shootout. We've been using it daily for over 3 years. It's compact, has auto - off, numerous features, and a temperature probe for thermal checks, soldering iron calibration, and DIY reflow control. The compact auto - ranging multimeter features an extra - large 4000 - count display and a built - in non - contact AC voltage detector. Advanced functions include frequency, duty cycle, capacitance, temperature, diode test, and continuity beeper. The rubber holster protects the meter, and it's UL listed Cat III - 600V. It comes with test leads, a Type K temperature probe, two AA batteries, and a tilt stand. With a large display and many features, it's a great choice! Features: Autoranging DMM with 12 functions and 0.5% basic accuracy; AC/DC voltage measurement from 0.1mV to 600V; AC/DC current from 0.1uA to 10A; resistance from 0.1Ω to 40MΩ; capacitance from 0.001nF to 200μF; frequency & duty cycle from 0.001Hz to 40MHz / 0.1% to 99.9% duty; Type K thermocouple temperature from - 20 to 750°C; diode/continuity; built - in non - contact AC voltage detector with red LED indicator and audible beeper; large - digit 4,000 - count LCD display; max hold, data hold, relative, and auto power off; comes complete with test leads, tilt stand, protective holster, Type K bead wire probe, and 2 AAA batteries. English Datasheet (PDF). User manual (PDF). Check out our detailed getting - started - with - your - multimeter tutorial here!
Using the Extech EX330 multimeter is easy. First, make sure you insert the two AA batteries. Then, you can start taking measurements. For voltage, connect the test leads to the appropriate points and select the AC or DC voltage function. To measure current, insert the leads into the correct sockets. When using the temperature probe, connect it and select the temperature function. The non - contact voltage detector can be used by simply bringing the meter close to the suspected voltage source. As for the frequency and duty cycle functions, they're useful for checking UART baud rates and crystal oscillators. Here are some important things to note. Always check the voltage and current ranges before making a measurement to avoid damaging the meter. When not in use, turn it off to save battery life. The rubber holster is there to protect the meter, so keep it on. For maintenance, keep the meter clean and dry. Check the test leads regularly for any signs of damage. If you need to replace the batteries, use high - quality AA batteries. And don't forget to refer to the English datasheet and user manual if you have any questions.
