Handheld LCR Meter
ET430 Series Handheld LCR Meter
The ET430 series handheld LCR meter combines a 2.8-inch TFT display, flexible key operation and full-speed USB communication in one compact, battery-powered unit. With test frequencies up to 100 kHz, basic accuracy up to 0.2 %, automatic component identification, sorting and deviation measurement, it covers everyday inductance, capacitance and resistance checks on the bench and in the field — across five models: ET430B, ET430, ET431, ET432 and ET433.
Key features
- Measurement frequency up to 100 kHz, continuously adjustable in 1 Hz steps
- Basic accuracy 0.2 % (ET431 / ET432 / ET433) or 0.3 % (ET430B / ET430)
- Open-circuit and short-circuit calibration
- DC resistance (DCR) measurement (ET431 and above)
- Electrolytic capacitor measurement mode (ET430 and above)
- Internal bias voltage output 0 – 1000 mV
- Automatic component identification and measurement once the component is connected
- Sorting and deviation measurement supported
- 2.8-inch TFT display, 4½-digit display
- USB Type-C communication interface, SCPI protocol supported
- Large-capacity lithium battery power supply
- Adjustable measurement speed; manual and automatic range
- System settings: Chinese or English language, buzzer and screen brightness configurable
Specifications — model comparison
| Item | ET430B | ET430 | ET431 | ET432 | ET433 |
|---|---|---|---|---|---|
| Frequency range (max) | 10 kHz | 100 kHz | 10 kHz | 100 kHz | 10 Hz – 100 kHz |
| Test frequency points | 4 fixed points (100 Hz, 120 Hz, 1 kHz, 10 kHz) | 6 fixed points (100 Hz, 120 Hz, 1 kHz, 10 kHz, 40 kHz, 100 kHz) | 4 fixed points (100 Hz, 120 Hz, 1 kHz, 10 kHz) | 6 fixed points (100 Hz, 120 Hz, 1 kHz, 10 kHz, 40 kHz, 100 kHz) | User-defined, continuously adjustable in 1 Hz steps |
| Basic accuracy | 0.3 % | 0.3 % | 0.2 % | 0.2 % | 0.2 % |
| Display | 2.8-inch TFT LCD | ||||
| Display digits | Main parameter 5 digits · secondary parameter 5 digits | ||||
| Measurement parameters | Main: L / C / R / Z · secondary: X / D / Q / θ / ESR | ||||
| Electrolytic capacitor mode | No | Yes | Yes | Yes | Yes |
| DCR mode | No | No | Yes | Yes | Yes |
| Measurement display range | L: 0 µH – 2000 H · C: 0 pF – 20.000 mF · R: 0 Ω – 20.000 MΩ | ||||
| Measurement display speed | Slow, medium, fast | ||||
| Internal bias | None | 0.1 V, 0.3 V, 0.6 V | 0 mV – 1000 mV adjustable, 1 mV steps | ||
| Test level | 0.6 V, 1 V | 0.3 V, 0.6 V, 1 V | 0.1 V, 0.3 V, 0.6 V, 1 V | 10 mV – 1100 mV, adjustable in 1 mV steps | |
| Calibration | Open-circuit calibration, short-circuit calibration | ||||
| Screening function | Limit range settable 1 % – 50 %, fixed points at 1 %, 5 %, 10 %, 20 % | ||||
| Deviation measurement | Percentage deviation between the measured component and the set nominal value is calculated and displayed | ||||
| Other | Adjustable backlight brightness, settable auto power-off time, Chinese / English selectable | USB Type-C communication, built-in large-capacity lithium battery | |||
Models share the same handheld platform; choose by frequency range, accuracy class and whether you need the electrolytic capacitor or DCR modes. See the same product on the homepage product grid.
Applications
Electronics repair & field service. Battery power, automatic component identification and a compact handheld body make the ET430 a go-to LCR meter for checking capacitors, inductors and resistors at the bench or on site.
Component sorting & incoming inspection. Sorting and deviation measurement against a set nominal value, with settable screening limits, speed up pass / fail checks of component batches.
Capacitor testing. The dedicated electrolytic capacitor mode (ET430 and above) and internal bias output up to 1000 mV support realistic capacitor checks, while DCR mode (ET431 and above) covers coil and winding resistance.
Accessories
- Standard (ET430B / ET430 / ET431 / ET432): USB Type-C charging / data cable, charging adapter, gold-plated shorting plate, red/black alligator-clip test leads, built-in large-capacity lithium battery
- Standard (ET433): Kelvin test fixture
- Optional (ET430B / ET430 / ET431 / ET432): Kelvin test fixture, SMD chip test tweezers
- Optional (ET433): SMD chip test tweezers
Downloads
⭳ Datasheet — ET430 Series (ET430B / ET430 / ET431 / ET432 / ET433) PDFFrequently asked questions
Which ET430 model should I choose — ET430B, ET430, ET431, ET432 or ET433?
Choose by test frequency and the functions you need. ET430B and ET431 offer 4 fixed frequency points up to 10 kHz; ET430 and ET432 offer 6 fixed points up to 100 kHz; ET433 covers 10 Hz – 100 kHz with the frequency freely adjustable in 1 Hz steps. Basic accuracy is 0.3 % on ET430B / ET430 and 0.2 % on ET431 / ET432 / ET433. DCR measurement starts from ET431, and the electrolytic capacitor mode from ET430.
Can the ET430 measure electrolytic capacitors and DC resistance?
Yes. The electrolytic capacitor measurement mode is included on ET430, ET431, ET432 and ET433 (not on ET430B), and DC resistance (DCR) measurement on ET431, ET432 and ET433.
What does the ET430 measure?
Main parameters L / C / R / Z with secondary parameters X / D / Q / θ / ESR, over display ranges of L 0 µH – 2000 H, C 0 pF – 20.000 mF and R 0 Ω – 20.000 MΩ. It also supports sorting and deviation measurement against a set nominal value.
How is the ET430 powered and connected?
It runs on a built-in large-capacity lithium battery for long working hours and connects over USB Type-C with SCPI protocol support, which suits both bench work and field component checks.
Which test fixtures are included, and what can I add?
ET430B – ET432 ship with a USB Type-C charging / data cable, charging adapter, gold-plated shorting plate and red / black alligator-clip test leads; the ET433 includes a Kelvin test fixture as standard. A Kelvin test fixture and SMD chip test tweezers are optional for the other models, and SMD chip test tweezers are optional for the ET433.
Enquire about the ET430 series
Tell us which model and test fixtures you need — instruments are quoted per enquiry, answered personally by Kate Liu, typically within one working day.