DESCRIPTION
The ZOYI ZT-225 is a high-precision, 25,000-count digital multimeter designed for electricians, technicians, electronics repair, workshop diagnostics, and advanced DIY applications. With its 4.5-digit high-resolution display, True RMS measurement, automatic ranging, and intelligent anti-burn protection, the ZT-225 provides accurate and convenient testing across a wide variety of electrical and electronic applications.
Its large, easy-to-read LCD provides detailed measurement information, while the backlight and built-in flashlight help improve visibility when working inside electrical cabinets, workshops, vehicles, or other low-light environments. The meter also features an analog bar graph for quickly observing changing signals.
High-Precision 25,000-Count Measurement
The 4.5-digit, 25,000-count display provides fine measurement resolution, allowing users to see smaller changes in electrical values than with conventional lower-count meters. This makes the ZT-225 particularly useful for electronics troubleshooting, component testing, power-supply diagnostics, and precision electrical measurements.
True RMS Technology
True RMS measurement helps provide more reliable AC readings when dealing with non-sinusoidal or distorted waveforms. This is useful for testing modern electronic equipment such as switching power supplies, LED drivers, inverters, chargers, and other nonlinear loads.
Automatic and Manual Ranging
The intelligent auto-ranging system automatically selects an appropriate measurement range, making everyday testing faster and easier. Manual range selection is also available when greater control is required for troubleshooting or precision measurements.
Comprehensive Measurement Functions
The ZT-225 can measure AC/DC voltage, AC/DC current, resistance, capacitance, frequency, temperature, diode characteristics, continuity, and duty cycle. It also supports AC+DC voltage measurement and non-contact voltage detection (NCV), giving electricians and technicians a broad set of diagnostic tools in one instrument.
Intelligent Burn-Out / Anti-Burn Protection
The meter incorporates protective features intended to help reduce the risk of damage from incorrect operation, including protection around current measurement and input connections. A current-gear misoperation warning helps alert the user when the meter is not configured correctly for the selected measurement.
Important: Protective features do not eliminate electrical hazards. Always verify the correct function, terminals, and measurement range before connecting the probes, and never exceed the meter's rated input limits.
NCV Non-Contact Voltage Detection
The built-in NCV function allows users to check for the presence of AC voltage without making direct electrical contact with the conductor. Visual and audible indications can help identify potentially live wiring during preliminary inspections.
Convenient Professional Features
The ZT-225 includes practical functions such as Data Hold, MAX/MIN recording, Relative (REL) measurement, automatic power-off, low-battery indication, backlit display, analog bar graph, and a built-in flashlight. An integrated kickstand and probe-storage design also make the meter convenient for bench and field work.
SPECIFICATIONS
Origin: Mainland China
| Meter Type |
Digital Multimeter |
| Display Count |
25,000 Counts |
| Ranging |
Automatic / Manual |
| Capacitance |
Up to 99.99mF |
| Temperature |
-20°C to 1000°C / -4°F to 1832°F |
| Continuity Test |
Yes, Audible Buzzer |
| Low Battery Indicator |
Yes |
| Sampling Rate |
Approximately 3 readings/second |
| Safety Rating |
Models/specifications list CAT III 600V; verify the marking on the individual meter before high-voltage work |
| Approx. Dimensions |
180 × 90 × 50 mm |










