Let me take this opportunity for a very short and cursory reviews. (and bad english, sorry)
I have a Benning MM7-1 multimeter. At first I thought it is an expensive German übertechnology. Wrong. It is a rebranded APPA 99III, such as the Iso-Tech IDM 99-III and the IDEAL 61-486.
Pros:
The backlight is nice even white light. Resistance measurement is very fast, the continuity test is immediately, really, and no scratching. It is a pity that this renders with that often but not always, when the continuity is interrupted beeps a second one. Confusing.
Cons:
Rotary switch have a curved shape grip, despite the rasp surface it slips and never usable with one hand. Moreover, the stand is unstable, the base of the holster is curved, falls over.
Voltage measurement is very slow, 2-3 seconds to be the display stabilizes.
The capacitance max 5 micro F.
The bar graph is nice curved and useless, it is just a graphical representation of the digital display. It is no faster than the digital display. Which refresh is about 2-3 / sec.
The Volt Sensor often completely works in reverse. Eg. the signal increases when moving away from the tension.
When use the LoZ function the meter overheats, after this action that can not be correct measuring about 30 minutes. In this case, with shorted probes shows about 20 Ohms or 60 °C temperature, and it decreases very slowly.
Eats battery. The normal consumption is 5 mA, 20 mA with backlight, when it is beeping 50 mA (200 mA peak short a while). Of course, who is beeping forever? Well this meter does, beeps for rotary switches action, buttons or just switch to current measuring and NO ANY probe is connected (not only when it is not plugged into correct jack, but when the correct connector is empty).
I do not like.