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Transforming technology into a tool to serve customers



View the change of the charging curve in real time, find the abnormal charging immediately.

Supports up to 9 hours of offline voltage and current curve recording, charging process fully displayed.

Charging protocols Changes. Master in real time.

Charger ripple measurement, easy to screen inferior chargers.

Read data information of CC line with E-Marker chip

Read DASH cable chip related data

Constant current load two-step fast measurement of wire resistance


![]() FNB58 USB Tester | ![]() FNB58 Standard USB Tester | ![]() FNB48 USB Tester | ![]() DMT-99 Multimeter | ![]() DMC-100 Clamp Meter | |
|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — |
| Price | — | — | — | — | — |
| APP software | ? | No | ? | No | No |
| USB power delivery 3.1/Xiaomi magic change PD | ? | ? | NO | NO | NO |
| QC4,QC4+\QC5 Huawei66W/240W | ? | ? | NO | NO | NO |
| Simulation switch: protocol conversion PC-PD simulation isolation is not damaged | ? | ? | NO | NO | NO |
| Monitoring voltage/current/power | 4~28V/7A/140W | 4~28V/7A/140W | 4~24V/6.5A/156W | Non-USB tester | Non-USB tester |
| High -speed chain display | 50K -> 4M Sa/s | 50K -> 4M Sa/s | 50K->3.2MSa/s | Non-USB tester | Non-USB tester |
| High -speed ripple bandwidth | 400KHz | 400KHz | 320KHz | Non-USB tester | Non-USB tester |
| Multimeter Counts | No Multimeter | No Multimeter | No Multimeter | 9,999 TRMS | 9,999 TRMS |
| AC/DC Voltage | No Multimeter | No Multimeter | No Multimeter | AC:750V/DC:999.9V | AC:750V/DC:999.9V |
| AC/DC Current | No Multimeter | No Multimeter | No Multimeter | AC/DC:9999uA-9.999A | AC/DC:99.99A/600A |



View the change of the charging curve in real time, find the abnormal charging immediately.

Supports up to 9 hours of offline voltage and current curve recording, charging process fully displayed.

Charging protocols Changes. Master in real time.

Charger ripple measurement, easy to screen inferior chargers.

Read data information of CC line with E-Marker chip

Read DASH cable chip related data

Constant current load two-step fast measurement of wire resistance


![]() FNB58 USB Tester | ![]() FNB58 Standard USB Tester | ![]() FNB48 USB Tester | ![]() DMT-99 Multimeter | ![]() DMC-100 Clamp Meter | |
|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — |
| Price | — | — | — | — | — |
| APP software | ? | No | ? | No | No |
| USB power delivery 3.1/Xiaomi magic change PD | ? | ? | NO | NO | NO |
| QC4,QC4+\QC5 Huawei66W/240W | ? | ? | NO | NO | NO |
| Simulation switch: protocol conversion PC-PD simulation isolation is not damaged | ? | ? | NO | NO | NO |
| Monitoring voltage/current/power | 4~28V/7A/140W | 4~28V/7A/140W | 4~24V/6.5A/156W | Non-USB tester | Non-USB tester |
| High -speed chain display | 50K -> 4M Sa/s | 50K -> 4M Sa/s | 50K->3.2MSa/s | Non-USB tester | Non-USB tester |
| High -speed ripple bandwidth | 400KHz | 400KHz | 320KHz | Non-USB tester | Non-USB tester |
| Multimeter Counts | No Multimeter | No Multimeter | No Multimeter | 9,999 TRMS | 9,999 TRMS |
| AC/DC Voltage | No Multimeter | No Multimeter | No Multimeter | AC:750V/DC:999.9V | AC:750V/DC:999.9V |
| AC/DC Current | No Multimeter | No Multimeter | No Multimeter | AC/DC:9999uA-9.999A | AC/DC:99.99A/600A |
Transforming technology into a tool to serve customers