ZOYI ZT-S4 True RMS Autoranging Digital Multimeter, 4000 Counts
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Prices updated: 14 Oct 2026
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About this product
The ZOYI ZT-S4 is a True RMS autoranging digital multimeter with a 4000-count LCD. It measures AC and DC voltage up to 600 V and AC and DC current up to 9.999 A, with data hold, backlight and a flashlight. It suits electronics troubleshooting, battery checks and general electrical measurements.
Specifications
- Display
- 4000 counts LCD
- Measurement type
- True RMS
- Range mode
- Autoranging
- AC/DC voltage ranges
- 4V / 40V / 400V / 600V
- AC/DC current
- Up to 9.999 A (mA up to 999.9 mA)
- Dimensions
- 118 x 59 x 28 mm
- Features
- Data hold, backlight, auto power off, flashlight
Frequently asked questions
How do I measure current with it?
Select the mA or A current function and use the input jack marked for that current range on the meter panel. The meter covers AC and DC current up to 9.999 A.
Why choose a True RMS meter?
A True RMS meter reads AC values accurately on non-sinusoidal waveforms such as PWM signals or rectified and distorted signals, where average-reading meters give errors.
