[TowerTalk] remote reading multimeter

[Grant Saviers]

The wifi camera might be the easiest.

Grant KZ1W

On 7/26/2021 11:25, Lux, Jim wrote:
> On 7/26/21 10:37 AM, Grant Saviers wrote:
>> Probably others have or would like to have what I am searching for:
>>
>> A multimeter with a couple hundred feet remote readout.  Best if the 
>> readout was on my android phone, but a pc would be acceptable.  The 
>> need is troubleshooting stuff happening at the tower/up the tower at 
>> the end of cables, etc. when manipulating stuff at the station.
>>
>> The are infinite cheap (<$40) digital meters available, a lot of 
>> searching found one with bluetooth on amazon:
>> Tekpower TP4000ZC PC Based USB Interfaced Auto Ranging Digital Multimeter
>>
>> Seems it has sketchy software support.  Then the bluetooth range is 
>> inadequate so a range extender of some sort is needed. (at both 
>> ends?). wifi seems like the better technology for direct range and 
>> battery size in a handheld isn't much of a constraint.
>>
>> Any solutions out there being used or created?
>>
>> Given the competition <$40 in the VOM market, I would think a wifi 
>> enabled meter would find a niche. 
> 
> 
> You might do better looking for a WiFi data acquisition module - 
> measuring current is a bit tricky, but voltages are easy. A rPi or 
> BeagleBone Wireless with a WiFi would probably do.
> 
> Labjack is pretty pricey, but has been around a while, and there's lots 
> of software support on all platforms.
> 
> Another approach is a wifi camera pointing at your test instrument(s) of 
> choice.
> 
> There are also some long range serial links available (non-bluetooth) 
> and you could connect to a serial interface DMM.
> 
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