| Electronics > Beginners |
| Good multimeter to buy |
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| german77:
I have been searching for a good multimeter in the range of $50-$250 US dollars that suits my needs. But I can't found one that suits all my needs. I need to measure very low resistances below 0.1 ohms. Diode check above 5v. And currents in the order of nA. And It must has at least 10M ohm input impedance. I mostly use it to fix and test devices that use 3.3v up to 60v. Where a cheap multimeter can't test zeners, shunt resistors, coil resistances, measure low currents, or simply the simple act of measuring changes the way the circuit behaves. Fluke multimeters at least the affordable ones don't meet my requirements as they are designed for high voltage applications. The 121GW multimeter meets everything I need, but the total price to ship to Mexico is $385 which is way to high compared to the $180 price shown in the website. Other brands have almost the same specs as fluke. Do anyone know a multimeter that would be suitable for me? or a seller of 121GW that will ship to Mexico and not double the price? |
| ejeffrey:
If you need to measure below .1 ohm I highly recommend a bench meter with 4 wire ohms and some Kelvin lead clips. You can do it with a regular dmm and zero offset correction but it is hard to get the probe contact repeatability much better than that. I really want a handheld dmm with 4 wire ohms mode, but I have never seen one. The diode thing really narrows it down. Consider just making an external diode probe from a battery and a resistor. It is not as convenient as a built in mode of your meter but will really open up your choices. |
| Electro Detective:
Consider getting two affordable meters that have the features you need amongst them. The 'All In One' concept has never worked for me and or the prices :scared: suited rich tech companies purses |
| bob91343:
I suggest you check out the HP 412A. It meets most of your requirements and should be available for not too much. It's a boat anchor, using tubes. The low Ohms range has a center scale of 1 Ohm. It will measure current down to 1 microamp full scale I think. If you find one make sure it comes with probes. They are NOT just simple test leads. There is, as far as I know, nothing much for testing zener diodes. You will need an external power supply and a series resistor but that's easy enough. Some of the bench type digital units are good too, and are solid state. |
| radiolistener:
UNI-T UT61E - cheap work horse for home lab. Also you can look at Brymen BM867, it is more safe. |
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