Meter, tester, USB doctor UNI-T series UT658, model UT658B.
We offer an enhanced, upgraded version of the UT658B tester.
The new version compared to the standard UT658 is distinguished by:
- capacity measurement up to 39999 mAh (the older version only supported measurements up to 9999 mAh),
- convenient 10 cm input cable,
- increased electrical durability of the tester - increased current measurement range up to 3.5A (3.69A max).
UNI-T meters are high-quality products compliant with global standards, used for measurements in industrial systems and laboratories. The brand offers innovative devices whose accuracy and advanced features make them widely applicable in various measurement systems.
The UNI-T UT658B USB tester is a high-quality multifunctional tool that allows us to measure the voltage, current, and capacity of any device powered by a USB cable.
The device stands out among other pocket USB testers for its high measurement accuracy and low internal resistance. The measurement error for voltage [V], current [A], and capacity [mAh] usually does not exceed 1%.
Readings can also be calibrated in your own range.
It is also worth noting the very low power consumption of the tester itself - the device consumes only about 6mA of current, despite the active screen backlight. The lower consumption of the tester also results in a smaller error during capacity tests of power banks or batteries.
With this device, you can easily check the charging speed of a typical charger and even estimate the capacity of a power bank.
Does your charger or power bank maintain the promised operating parameters? You can easily verify this with this device.
This basic pocket tool for assessing the quality of USB power supplies enables diagnostics of charging and power supply problems for devices.
The device also does not interfere with data transmission and exchange over USB, so it can be transparently placed before any device to verify current consumption, etc. It is also suitable for testing USB chargers with Quick Charge technology.
Meters are factory calibrated and offer high base accuracy.
However, as is fitting for a high-precision instrument, the UNI-T meter can be calibrated independently - both voltage and current readings can be adjusted to your own voltage and current standards.
The possibility of full calibration of the device is very rare among pocket USB testers.
Everyone who purchased UNI-T USB meters from us can receive calibration instructions via email. Please feel free to contact us regarding this matter.
| Specification | |
| Recommended input voltage: | 3.00 V - 9.00 V |
| Maximum voltmeter reading: | 9.99 V, above reading OL |
| Minimum input voltage: | 2.5 V (below 3 V the LCD backlight is inactive) |
| Maximum input voltage: | 20 V |
| Voltage measurement resolution: | 0.01 V |
| Voltage measurement accuracy: | ±(1%+5) |
| Recommended current measurement range: | 0.00 A-3.50 A |
| Maximum ammeter reading: | 3.69 A, above reading OL |
| Current measurement accuracy: | ±(1%+5) |
| Current measurement resolution: | 0.01A |
| Capacity: | 0-39999 mAh |
| Tester power consumption: | approx. 6 mA |
| Tester resistance: | approx. 100 mΩ (including connectors) |
| Results memory: | Yes, up to 10. |
| Display | LCD, (2.6mm x 1.7) |
| LCD warning | below 4.7V above 5.3V |
| Cable length | 10cm |
No. 6, Gong Ye Bei 1st Road
Songshan Lake Guangdong Province
Chiny
Email: info@uni-trend.com
Telephone: +86-769-85723888
Geodetów 24
80-298 Gdańsk
Polska
Email: contact@baltrade.eu
Telephone: 58 552 20 20