johnmnagy Looks like they are trying to explain how the different areas of the glass have different effects. I have to agree it makes no real sense to show it that way and not have ANY explanation.

johnmnagy Note that others in reviews have said it is quite narrow, one estimating 30 degrees.

johnmnagy I'vebeen asking support that repeatedly. No reply so far.

johnmnagy The button on the case is just to turn the internal battery charger on and off. Note the green light inside turns on and off with that button. As for the dual vs single setup, I have the same issue. One time they worked right. The manual is useless. I read about other TWS pairing online and tried each method til it worked. Once. Will continue the research.

johnmnagy This is a SWITCH. You choose which ONE of two displays gets the ONE input, or you choose which ONE of two inputs goes to the ONE display. So adding more switches will not extend any screen... only ONE PATH through the multiple switches can be active at one time.

johnmnagy If you mean can you drive 2 screens at once, NO. This is a SWITCH. You choose which ONE of two displays gets the ONE input, or you choose which ONE of two inputs goes to the ONE display.

johnmnagy V-ALERT is a buzzer that sounds when NEAR a voltage, without needing actual contact by a probe. Hold the unit near a power line, it will buzz, more buzz means higher voltage. LIVE does the same thing but requires at least one probe touching a hot wire. Useful to determine which lead is HOT and which is ground. AUTO is the setting for actual use of the probes across a voltage, giving a display measure instead of a buzzer. If there is no voltage, it reads resistance (down only to 1 ohm, and inaccurate at the low end). If the resistance is below 30 ohms, the CONTINUITY buzzer sounds as well.

johnmnagy Clearly, no amperage measurement on this device. The manual refers to amp measure in a couple places regarding safety, that's got to be formula warnings about testing in general.