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WARNING: This product can expose you to chemicals including Nickel which is known to the State of California to cause cancer and which is known to the State of California to cause birth defects and/or other reproductive harm. For more information, go to www.P65Warnings.ca.gov Click to see Why is this here?
As of August 2018 the State of California has changed the requirements of the “Prop 65” law. We now must list on our website any possible chemicals the can cause cancer, birth defects or reproductive problem.
As an example: ABS plastic contains styrene PVC wire insulation can contain Di(2-ethylhexyl)phthalate (DEHP) electrolytic capacitors can contain Ethylene glycol Brass can contain Lead flame retardant pc boards can contain Tetrabromobisphenol A (TBBPA) Aluminum alloys can contain Chromium To put it simply we are a small company and do not have the resources to test every single part, so we list every thing as hazardous. Please recycle all electronic parts responsibly and under no circumstance eat, drink or smoke these parts and wash your hands after touching! |
Product Reviews Click here to review this item | ||
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Some test questionable | |
| I recently watched the video on this tester and was impressed so I ordered two units. I found the instructions hard to read due to the small print and enlarging didnt help much. In the test performed section there were small numbers as if to reference a footnote. Couldnt find the notes on the instructions. Semiconductor tests are good and would be great for testing unknown and used parts. Resistor tests seem accurate. Capacitor tests are ok but there was a difference in ESR reading between the two meters. One would show a fraction of an ohm and the other zero ohm. Readings below an ohm are usually ok for most capacitors. I did place a 39 ohm resistor in series with a capacitor and both meters showed 39 ohms ESR. On the inductance test I found some strange readings. Coils with powered iron cores seemed pretty close to a BK 875 meter. Coils with steel laminations were sometimes off by 100%. Also the resistance shown for the coils were way off compared to an analog DC meter. DC resistances of less than one ohm may show up on this tester as being over 100 ohms. My only thoughts for these errors may be due to the test frequency and/or waveform used on this tester. The IR and LED tests seemed to work fine. For what this tester cost it works pretty good. If you want more accuracy it may not be for you. | ||
| - Ted, WV | ||
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A handy tool for the hoobyist | |
| First off, this tester IS NOT a Fluke 170-series multimeter or a precision component tester! This tester is a quick and dirty indicator only device for checking and verifying discrete components. It does its job VERY FAST and CLEARLY displays the results on its color LCD screen. What you get: the tester with a peel-off protective film - I suggest taping its edges to the tester to help keep things Neat And Clean, a short USB Micro cable for charging its internal battery, 3 short test leads Red, Black, Green with mini-clips on one end and post probes on the other end, a row of 3 crimp pins that are tied together for doing a self-test, a 3mm Red LED and a small 10 uF capacitor for practice component testing, and a nicely printed Instruction Sheet. All items are neatly organized and bagged. The device checks LEDs very well. I found its measured Vf Forward Voltage values to be approx. 0.1 VDC HIGHER than those measured with my Fluke 175 meter. To me, this is No Big Deal as it wont appreciably impact LED circuit design. With resistors, the readings it gave with 5% resistors were well within the tolerance of the manufactured value. I found no need to verify the readings with my Fluke 175. The ZIF socket is very suitable for testing two- and three-lead components. They are easily inserted and the ZIF pressure securely holds them for testing. The staggered connection order makes it fairly easy to line up a components leads so they all get a test point. My only criticisms are those which have been noted by MANY who have purchased this device. 1: the test leads ARE NOT very easy to use. However, Clever Users can construct a test lead module using a 14-pin, 0.3 wide solder header. This makes using test leads MUCH EASIER using the ZIF socket, PLUS you can make your leads LONGER than the provided ones if desired. 2: it does consume battery power, limiting the # of tests you can do before it needs recharging. HOWEVER, if you are testing a lot of components in succession, simply plug it in to a USB port with its charging cable and it will Be Very Happy testing things while recharging its internal battery which DOES recharge pretty quickly!. REMEMBER THIS: when you first get the unit delivered, IMMEDIATELY plug it into a USB port to top off the internal battery! To conclude: this device is excellent for GO/NOGO device testing, verifying resistor and capacitor values up to its Testing Limits, determining pinout/polarity of unknown 3-lead devices transistors, thyristors and for help in matching components diodes, LEDs, etc. for circuit design. While it WILL NOT replace your bench DMM, IT WILL serve for doing quickie, etc. component checks faster than a bench DMM. Finally, its price will not break the bank! | ||
| Ken Simmons | ||
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Mult-ifunction Tester | |
| I have several tests devices that were made in England high quality and they incorrectly indicated that a 2N128 PNP germamium is a PNP silicon transistor. The multi-function tester correctly indicated that the 2N128 was indeed a PNP germanium transistor. I recommend this unit. | ||
| - Ron, MI | ||
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Fun little tester for the price | |
| I got this mostly to test diodes/LEDs and common BJT Transistors. I havent tested everything it lists yet like JFETs, Zeners, etc. I have some around so Ill get to it at some point. I think my only disappointment so far is it looks like the firmware has a U instead of a V for things like Vbe which show as Ube -- which is kinda funny... but kinda sad. Otherwise, its a handy little tester to have on the bench for some quick go/no-go testing like getting Vf/Vr/If for LEDs since I have them in bulk and dont list those specs in the bin. I just grab my meter. | ||
| Ben | ||
