MM450 Slim Digital Multimeter, Reverse Contrast Display with Lead Alert, Auto-Ranging TRMS, 600V AC/DC Voltage, Current, Resistance, Temp, Frequency, Continuity

I've been a fan of Klein Tools for years, so considering a Klein multimeter wasn't difficult at all. I've used mostly Fluke multimeters in my 40+ year carreer as a technician. They are considered the best of the best. With that accuracy, repeatability, and quality, you pay dearly! So I was looking for a second lower-cost meter. I was also looking for a reverse backlit display--white numerals on a black background. I'd looked at Milwaukee, but they do not include a diode check function. I chose the MM450 for it's features and price point. While I have not compared accuracy to other meters, published specs are similar to other more expensive meters. There is one minor issue in my review, and that is the white-on-black display needs to be viewed pretty much head-on for best quality. Depending on the tilt angle, there are positions where the display is very faded, almost to disappear. That might be an issue if you measuring in tight quarters or not able to look straight on otherwise. It comes with test and temperature probes, and fabric case. An optional rare-earth magnetic hanging strap is available. Besides voltage and current, it also measures resistance, capacitance and frequency, along with a peak hold function, making it an ideal meter for most service techs. One other minor detail...when in Auto scale mode, it can take up to 5 seconds for the reading to finally resolve. If you are troubleshooting something point to point and in a hurry, this may be an annoyance. However, if you turn off the Auto-scale mode, the readings display quite a bit faster. Given the display issue (and that might not be a problem for everyone) I'd give it a 4.5, if that were possible. But it's certainly better than a 4, so a 5 it is!

Small and compact. It takes AAA batteries and the fuses are easily accesible unlike the fluke ones. I wish I didn't waste my tome with Fluke all these years. The only negative, if you can call it that, if that it always defaults to mixed AC/DC mode. I never use those modes since can give false or inaccurate readings. So, set the dial and press the button one for AC, twice to work in DC. Luckily the auto shutoff keeps the last setting.

This works really well

Replacing my old multimeter I really notice the white on black LCD, it's so much easier to read than my old meter. It is thin and the probes come out the side of the body. Rubber grip is good. I appreciate the zipper pouch. It does start beeping at you before it auto powers off which is a little annoying, I myself don't need a warning it's shutting down. I thought the probe tips were too small but it looks like the sleeves come off when I need that. Overall I would buy it again.

This meter does not come close at all in terms of accuracy or quality to my Fluke 87V, but it is able to help accomplish tasks that an electrician or AC technician needs to do. While the specifications are not particularly clear, the displayed digits of precision and features are enough to get most tasks done. It is cheap enough that I do not fear damaging it.

Great quality not too expensive

I purchased this meter primarily because of the size. It will easily fit in a shirt pocket. I was impressed with all the features that Klein packed into this meter. The oversized display is easy to read although I did note like a previous reviewer that it can be somewhat difficult to see from an angle. I like the side entry test lead jacks. The jacks even light up depending on which function is selected, which may be helpful for less experienced technicians. It has a milliamp function which makes it useful for instrumentation applications. The microamp function works for burner flame signal troubleshooting. The frequency and capacitance and temperature functions are useful for HVAC applications. This meter has just as many features as a Fluke meter costing 4 times as much! It has a ruggedized shell that should protect the meter from daily use and abuse. Overall I am extremely impressed with this thing. Time will tell how it stands up to industrial and home use

Exactly what your buying.

Excelente todo bien

Works great. No issues. Bright adjustable display. Perfect for most hobbyists and home owners. Leads are long and flexible. Temp sensor works well. Nice case too.

Meter is great for a technician or hobbyist. Nice and small. Batteries included are not great but that’s not a big deal. Test leads are not great. I replaced leads with Fluke silicon leads

El tamaño es perfecto cumplieron sus funciones muy práctico

Buen equipo, solo que la pantalla no tiene buena visibilidad en exterior, y con luz directa del sol no se ve.