ZOYI ZT-Y 9999-Count True RMS Digital Multimeter
A high-resolution digital multimeter with True RMS measurement, V.F.C mode and NCV detection for electrical work, inverter diagnostics and electronics troubleshooting.
High-Resolution Electrical Measurement
The ZOYI ZT-Y is a precision-focused digital multimeter designed for electricians, repair engineers, technicians and experienced DIY users who need stable measurements and practical diagnostic functions.
Its clear 9999-count display provides detailed readings for electrical maintenance, electronics servicing, power-supply testing and low-voltage diagnostics. The compact design makes it suitable for both workshop use and mobile field service.
Why True RMS matters: True RMS measurement supports dependable AC readings when testing non-linear or distorted signals produced by LED drivers, chargers, inverters, switching power supplies and other modern electronic equipment.
Measurement Functions
AC/DC Voltage
Measure voltage in electrical installations and electronic circuits.
AC/DC Current
Support current testing during maintenance and fault diagnosis.
Resistance & Continuity
Check components, wiring paths, cables and electrical connections.
Frequency
Measure frequency in control, switching and signal circuits.
Diode Testing
Inspect diodes and semiconductor junctions during repair work.
V.F.C Mode
Helps stabilise voltage measurements on noisy variable-frequency signals.
NCV Detection
Provides quick indication of the possible presence of nearby AC voltage.
V.F.C Mode for Noisy Circuits
Electrical outputs from inverters, variable-frequency drives and motor-control systems can contain switching noise and high-frequency components. The ZT-Y’s V.F.C measurement mode is designed to help provide more stable voltage readings in these demanding testing environments.
This makes the meter particularly useful when working with HVAC equipment, motor-driven systems, industrial controls, inverter circuits and electronically controlled power equipment.
Clear Display and NCV Detection
The large backlit LCD offers clear visibility in fuse boxes, lofts, machinery cabinets, workshops and other dim locations. Its built-in NCV sensor allows users to perform a quick preliminary check for nearby live AC wiring without direct electrical contact.
Important NCV guidance: NCV detection is an initial indication only. It must not be used as the sole method of proving that a circuit is dead or safe to touch. Always follow an approved isolation procedure and verify with an appropriate contact voltage tester.
Recommended Applications
- Electrical installation and maintenance work
- Home electrical testing and DIY diagnostics
- HVAC, inverter and motor-control testing
- LED-driver and switching power-supply troubleshooting
- Automotive and low-voltage electronics repair
- Workshop and mobile field-service diagnostics
- Initial live-wire detection using the NCV function
Available from ZOYI UK
Delivered from UK stock with fast dispatch and a full VAT invoice, the ZOYI ZT-Y combines a high-resolution 9999-count display, True RMS measurement, V.F.C mode and NCV detection in one practical diagnostic instrument.
