CEN-TECH HANDHELD DMM

Cen-Tech # P35761 Handheld DMM, retail $21.95* (www.ingram-tech.com...)
Manufactured by Cen-Tech (www.cen-tech.com)
Last updated 03-09-10



This product does not emit light of its own (much like this spectrometer and this spectrometer too), so the standard review format will not be used and the product will be assigned a rating at once. A fairly high rating too, as during the time I've had it, it has thus far performed flawlessly -- although it does have a somewhat "cheap" feel to it that nocked a star off its rating.

The Cen-Tech Handheld DMM # P35761 is...what else...a handheld DMM (Digital MultiMeter). Its purpose is to allow you to measure common electrical parameters such as volts, amperes, and resistance (in ohms).

It provides its readings on a generous, easy-to-read LCD display -- there is also backlight, so you can take readings even in poorly-lit areas.

This DMM has a somewhat "chintzy" feel to it; when holding & using it, it feels like it must be babied or handled like an egg to prevent breakage.

* This price was found at one online retailer; the meter may cost a bit more or less than this depending on where you purchase.




Size of product w/hand to show scale SIZE






To install a new battery, follow these procedures:

1. Turn off the meter.

2. Place meter face down on a clean cloth.

3. Slide the battery door off, and chuck it into the weeds so that something will become angry at it and subsequently uranate on it...O WAIT!!! YOU'LL NEED THAT!!! So just set it aside instead.

4. Unsnap the old battery, and recycle or dispose of as you see fit.

5. Snap a new 9V transistor radio battery onto the battery snap; orienting it so that it's small snap fits into the larger snap on the battery clip, and vice versa.

6. Slide the battery door back on.
Aren't you glad that you didn't huck that battery door into the weeds with those creatures (squeaky or otherwise) with full bladders now?


To use the meter, plug the black test lead into the lower right receptacle on the meter's body labelled "COM", and plug the red test lead into the receptacle directly above it (except when measuring current on the "10A" scale).

Turn the large dial on the meter to the setting you want:
DCV (DC volts), ACV (AC volts), resistance (in Ω {ohms}), etc. and measure. This dial also functions as the power switch; turn it to the topmost position (labelled "OFF") when you are finished using this meter.



Photograph of the meter's display.


Spectrographic analysis
Spectrographic analysis of the LEDs in this meter's display backlight.
USB2000 spectrometer graciously donated by P.L.









TEST NOTES:
Unit was purchased sometime in 2001 (it was on $ale), and is used primarily as a backup unit in case my primary DMM goes on the rag, if its battery poops out, or if it otherwise goes down the tube.

Product was made in China.
A product's country of origin really does matter to some people, which is why I published it on this web page.


UPDATE: 00-00-00



    MANUFACTURER: Cen-Tech
    PRODUCT TYPE: Handheld DMM
    LAMP TYPE: N/A
    No. OF LAMPS: N/A
    BEAM TYPE: N/A
    SWITCH TYPE: N/A
    CASE MATERIAL: Plastic
    BEZEL: N/A
    BATTERY: 1x 9 volt transistor radio battery
    CURRENT CONSUMPTION: Unknown/unable to measure
    WATER-RESISTANT: No
    SUBMERSIBLE: NO WAY HOZAY!!!
    ACCESSORIES: Test leads, possibly a battery
    WARRANTY: Unknown

    PRODUCT RATING:

    Star Rating





Cen-Tech Handheld DMM * www.ingram-tech.com...






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