3.7V Inductor Capacitor ESR Meter Transistor Tester DIY MG328 Multifunction Tester

$25.99
  Availability: In Stock
  Shipping: Free Airmail 
  Estimated Delivery: 
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    Before we can ship your order, we prepare your products, do strict quality-control tests and carefully package the items. The time it takes to prepare your items for shipping is separate from the delivery time. It usually takes 1-3 business days to ship out .

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    You can choose the preferred shipping method on the cart page during the checkout process. We offers 3 international shipping methods:

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  •  Returns & Refund

    Last updated October 05, 2022

    Returns

    If you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund within 15 days from delivery date. All returned items must be in new and unused condition, with all original tags and labels attached.

    Return Process

    To return an item, please email our customer service at sales@alexnld.com to obtain a Return Merchandise Authorization (RMA) number. After receiving a RMA number, place the item securely in its original packaging, and mail your return to the following address:

    Alex NLD
    Attn: Returns
    RMA #
    HaGiborim St 8
    Tiberias, 14388
    Israel

    Please note, you will be responsible for the return shipping charges. We strongly recommend that you use a trackable method to mail your return.

    All customers should contact us and obtain Return Merchandise Authorization (RMA) number before sending anything to us. We will not be responsible for returned item(s) without notifying us in advance.

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    After receiving your return and inspecting the condition of your item, we will process your refund to the credit / debit card or PayPal account which was used to place the original order.

    Please allow at least seven (7) days from the receipt of your item to process your refund. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your refund has been processed.

    Exceptions

    If an item is found damaged or defective on receipt, we kindly ask you to contact us within 15 days from the delivery date to arrange a refund or exchange without physical return of the item.

    Please provide us with following:

    1. Photos of the front and back sides of the packaging box;
    2. A photo, video or screenshot of the defective item or the defective part of the parcel.

    Our customer service team will communicate with you to arrange a refund or reshipment without physical return of the item.

    Warranty & Repair service

    If any of the items you have purchased from us is found defective within 1 year from receipt, you are entitled to a repair under warranty. Please kindly provide us with evidence photos or videos of the defective item. After providing such information to our Customer Service team  and the problem is acknowledged, you can send the items back to us for a repair.

    Note:  Please be aware, we do not cover the cost of the returns fees in  warranty & repair service.

    Order Cancellation

    If you want to cancel an order within 24 hours from confirmation of the payment, you will be entitled to a full refund. It is still possible to cancel an order after 24 hours, provided that it has not yet been shipped. If an order has been shipped, it’s impossible for us to cancel or modify it anymore. If you still want a refund, you required to return the item on it’s arrival.

    Questions

    If you have any questions concerning our return policy, please contact us at:

    +972 054-536-2888
    sales@alexnld.com

     


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Features:
 
– The tester uses 3.7V rechargeable lithium battery (battery model: 14500)
– With MINIUSB port,it can power the tester, or charge for the 14500 battery.
– One key measurement operation, auto power off delay. Shutdown current is only 20nA, support for battery operation.
– Automatic detection PNP and NPN bipolar transistor, N, P-channel MOSFET, JFET FET, diodes, two diodes, thyristors, resistors, capacitors, inductors. Automatic detection pin definitions. 
– Measuring the current amplification factor (B) of the bipolar transistor and the turn-on voltage of the emitter junction (Uf). Darlington transistor amplification factor can be identified by the high threshold voltage and high current.
– Can detect bipolar transistors and MOSFET's internal protection diodes and displayed on the screen.
– Measuring the threshold voltage and the gate capacitance of the MOSFET.
– Support two resistance measurements, the potential can be measured. If the potentiometer is adjusted to its end, the tester can not distinguish between the middle and the ends of the pin.
– Resistance measurement resolution is 0.1 ohms, the maximum value of 50M ohms measurements.
Capacitance measurement range from 25pf to 100mF (100000 UF). Resolution up to 1 pF, inductance measurement range 0.01MH-20H, otherwise it will appear as a resistor, inductor DC resistance is higher than if Europe 2100 will also be displayed as a resistor.
– It can detect 2UF above capacitor equivalent series resistance (ESR), a resolution of 0.01 ohms. This feature is very important for the detection of the capacitor performance.
– It can display symbols of the two diodes in the right direction, also shows the forward voltage drop.
– LED detection for diode forward voltage drop higher than normal. Dual LEDs detected as double diode. Simultaneous detection of light-emitting diodes will flash.
– Time for each test is about two seconds, only the large capacitance and inductance measurements will take a long time.
 
Specification:  
 
1. ATmega328 microcontroller.
2. 2×16 character LCD display results. 
3. one-button operation, automatic power off.
4. shutdown current of only 20nA, support for battery operation.
5. low-cost version without the crystal, auto power off. 1.05k version of the software ATmega168 or ATmega328 in sleep mode when no measurement to reduce power consumption. 
6. Automatic detection PNP and NPN bipolar transistor, N, P-channel MOSFET, JFET, diodes, dual diode, thyristor SCR.
7. automatically detects the pin layout.
8. the threshold voltage and current amplification factor of the emitter junction of the bipolar transistor measurements.
9. Darlington transistor through a high threshold voltage and high-current amplification factor identified. 
10. pairs of bipolar transistors, MOSFET protection diode testing. 
11. The threshold voltage value 11 and the gate capacitance of a MOSFET is measured.
12. Supports two resistance measurements and symbols show the highest four numbers and units. Both ends of the resistor symbol is shown connected to the tester probes number (1-3). Therefore, the potential can also be measured. If the potentiometer is adjusted to its end, the tester can not distinguish between the middle and the ends of the pin. 
 
Please notice:
 
1. how to calibrate,
 Short three test point, the screen shows into calibration step. When prompted to disconnect the short end,please disconnected three tests points, calibration will continue, plug the canacitance when prompted plug into a capacitance over 100nF between 1 and 3 feet(Please use the nonpolarized capacitors over 100nF),then the program will automatically enter the next step, until the calibration is completed, reboot to complete the correction. 
2. when you use the battery first time,please activate the battery.
method 1, short the 2 point on the backside as the picture shows after you install the battery.
method 2,charge the battery after you install the battery.
 
Package Included:
 
1 x  M328 Transistor Tester LCR Capacitance ESR Meter 
1 x Test Clip(not include the battery and USB charging cable)

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