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MEXICOWANDERER's avatar
MEXICOWANDERER
Explorer
Dec 12, 2015

My New 4-1/2 Digit Multimeter

This critter resolves voltage and current measurements down to the at's gnass!




Tekpower TP9923B 4 1/2 Digits High Accuracy Multimeter with Display 19999 and Back Light (Digital Multimeter), Alike INNOVA MS8268
by Tekpower
4.8 out of 5 stars 4 customer reviews
Price: $45.95 AMAZON

Tekpower 4 1/2 Digits High Accuracy Multimeter gives you much higher accuracy and resolution than other 3 1/2 digits meters.
If you need a higher resolution and resolution, this is teh meter you need, it gives a reading as 19999, the other meters can only give you 1999 digits, a higher DAC gives you much better measurements.
Specifications:
DC Voltage: 200mV-20V-20V-200V-1000V Accuracy : +- (0.05%+5)
AC Voltage:
200mV (1.2%+10)-20V-20V-200V(0.8%+10)-700V Accuracy : +- (1.2%+5)
DC Current:
20mA (10uA, 0.58%+5)-200mA(100uA,0.75%+5)-10A(10mA, 2%+10)
AC Current: 20mA(10uA, 0.8%+5)-200mA(100uA+1.5%+10)-10A(10mA, 2%+10)
Resistance: 200-2K-200K-2M-20MK Ohms
Capacitance: 20nF-200nF-2uF-200uF
Frequency: 200Khz
Diode and Continuity
Triode hFE Test
Included:
1X TP9223B Multimeter
1X Test adapter
1X User's Manual
1X Test Leads

8 Replies

  • MEXICOWANDERER's avatar
    MEXICOWANDERER
    Explorer
    Dec 13, 2015
    Near as I can tell time-wise the meter I mentioned shuts off after 20-min. I did not time it but it does auto-sleep.
  • MEXICOWANDERER's avatar
    MEXICOWANDERER
    Explorer
    Dec 13, 2015
    My phartsmone screen is too small to make out details. This is a 3-1/2 digit device? There is just too much voltage drop in the toad's lighter circuit to make one of these useful. :( for me.

    I have a DROK 5-digit voltmeter on the way and a DROK 3-1/2 digit ammeter. We shall see how much error it has in the 2nd decimal column.
  • pnichols's avatar
    pnichols
    Explorer II
    Dec 12, 2015
    I have one of these plugged 24/7 into an always-on 12V receptacle on our motorhome's cab dash right where I can read it all the time when driving to monitor what the alternator is putting out. I just ordered another one to plug into a 12V receptacle back in the coach so that I can conveniently monitor the (approximate) voltage of my coach batteries while camped:

    http://www.amazon.com/INNOVA-3721-Battery-Charging-Monitor/dp/B000EVWDU0
  • Almot's avatar
    Almot
    Explorer III
    Dec 12, 2015
    Free multimeters from Harbor Freight (probably the one that they sell for $5 normally) is no comparison. Bottom of the barrel quality and reliability, with accuracy >=1%, i.e. 12.xxV it reads with +/- 0.15V error. So you get the 3rd digit barely accurate, forget what it reads in the 4th position. A 3 DIGIT METER. Not even 3 1/2. That is, if you get lucky and it works according to specs :)

    For day to day messing around trailer 3 digit is "good enough" though. I use a 3-digit GreenLee, priced slightly lower than the one in Mex link. On the 4th year already, and I suspect it's poised to outlast me. I particularly like soft case that it came with. Have dropped it a few times.
  • mikebreeze's avatar
    mikebreeze
    Explorer
    Dec 12, 2015
    That's a nice VOM. I just get the free ones from Harbor Freight. And I keep a spare when the one in use goes bad.
  • MEXICOWANDERER's avatar
    MEXICOWANDERER
    Explorer
    Dec 12, 2015
    Santa Craws not predictable flying 11,000 miles eastbound, with a 600 mile right hook at the end.

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