Features & Benefits
- Detects NPN and PNP transistors, MOSFETs, diodes, and thyristors
- Conveniently tests plug-in and SMD devices
- Comes with added functions like auto power off and typical ESR value table
- Large backlit LCD display for easy reading

Smart transistor checker is able to detect a wide variety of devices automatically, including NPN and PNP transistors, MOSFETs, diodes, and thyristors. It can conveniently test plug-in and SMD devices, and comes with added functions such as auto power off, a large backlit LCD display, and a typical ESR value table.
Price Details
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Smart transistor checker is able to detect a wide variety of devices automatically, including NPN and PNP transistors, MOSFETs, diodes, and thyristors. It can conveniently test plug-in and SMD devices, and comes with added functions such as auto power off, a large backlit LCD display, and a typical ESR value table.
| Power Source | Battery Powered |
| Minimum Operating Voltage | 9 Volts |
| Measurement Type | Multimeter |
| Compatible Devices | Transistors (NPN, PNP, MOSFET), Diodes, Thyristors, Resistors, Capacitors, Inductors, Plug-in and SMD devices |
| Style Name | SMD Components Checker |
| Color | Red |
| Item Weight | 137 Grams |
| Item Dimensions | 5.43 x 3.19 x 1.73 inches (13.8 x 8.1 x 4.4 cm) |
| Brand Name | BSIDE |
| Model | Professional BSIDE ESR02PRO Digital |
| UPC | 744702729806 760970471360 760970469749 |
| Manufacturer | Bside |
| Part Number | 43237-2 |
| Included Components | 1 x Transistor Tester; 1 x User Manual |
| Brand | BSIDE |
| Style | SMD Components Checker |
Ideal for hobbyists who need a reliable and compact device to test various electronic components effectively.
Beneficial for DIY repair technicians looking to diagnose faulty components in devices quickly and efficiently.
Great for educators and students learning about electronics, offering hands-on experience with testing procedures and components.
May lack advanced features required by professional engineers for complex circuit analysis and high-precision measurements.
BSIDE ESR02 PRO Digital Transistor SMD Components Tester Diode Triode Capacitance Inductance Multimeter ESR Meter
The BSIDE ESR02 PRO Digital Transistor Tester is a useful tool for identifying different electronic components and testing resistors. It is good at giving ballpark ESR readings and can test in-circuit, though caution should be used as it sends voltage through the components. It doesn't come with test leads and cannot quickly identify typical parts like 2n2222 or 2n3904 from numbers it gives. If the meter fails, the manufacturer may be able to help with repairs. The device has a timeout before power-off but this can be modified by accessing a menu.
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