Products > Test Equipment
Just how good or bad can a $1.78 DT-830B multimeter from AliExpress be?
Gyro:
What on earth happened to that track to the +ve battery connection. It looks as if somebody suddenly forgot how to use the PCB package or resorted to Paint! :D
Miti:
I absolutely refuse to touch those HF type multimeters. As a general purpose multimeter, one in the car just in case, one on each shelf, etc., I’m using Innova 3310. They used to be 9.99$ at Canadian Tire but not anymore. I found some on Kijiji and at garage sales in the past but they are gone. Much better than HF in every aspect. For the new -er auto ranging 3320 model, CT wants an arm and a leg.
Fungus:
--- Quote from: Gyro on March 05, 2023, 11:27:04 am ---What on earth happened to that track to the +ve battery connection. It looks as if somebody suddenly forgot how to use the PCB package or resorted to Paint! :D
--- End quote ---
At least they put in a PCB slot to prevent arcing between the input terminals:
robert.rozee:
the manufacturers have certainly applied all their 'skills' to the design :-DD
it would be an interesting exercise for Dave to create a multimeter design similar to the DT-830B, but done right. ie, a bottom-of-the-market budget DMM, very similar in appearance and function to the DT-830B, but using good design practice and with at least a modicum of safety features - that is safe for mains voltages.
are you there Dave?
cheers,
rob :-)
mendip_discovery:
If Dave was to do that as a thinking exercise, I am sure that the factories would start churning them out.
Don't just assume the chinese board designers are stupid. They are just doing it as cheap as possible so safety takes a back seat.
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