The TA813 Series is a high-performance True RMS Digital Clamp Meter (Clamp Multimeter / Electrical Clamp Tester) designed for industrial electrical testing, equipment maintenance and field troubleshooting. Compliant with IEC61010 international electrical safety standards and rated CAT III 1000V, this series features a high-resolution VA color display, 6000/9999 counts measurement capability and automatic ranging for efficient and accurate electrical measurements in demanding working environments. The TA813 Series integrates multiple testing functions including AC current, DC current (TA813B+), AC/DC voltage, resistance, capacitance, inductance (TA813B+), frequency, duty cycle, temperature, continuity, diode testing, NCV non-contact voltage detection and live/neutral wire identification. It also provides advanced functions such as inrush current measurement, VFD voltage testing and high/low impedance voltage modes, making it ideal for troubleshooting variable frequency drives, servo systems, motor control circuits and industrial electrical equipment. The high impedance mode enables accurate standard voltage measurements, while the low impedance mode helps eliminate ghost voltage caused by capacitive coupling in control circuits, reducing measurement errors. The inrush current function captures the instantaneous startup current of motors, compressors and high-power equipment, helping technicians analyze overload conditions and startup faults. The dedicated VFD voltage measurement function improves testing accuracy on variable frequency drive output circuits. The TA813A+ is designed for general electrical inspection and maintenance applications, while the TA813B+ extends functionality with DC current measurement, inductance testing, relative value measurement and DC zero adjustment, making it suitable for DC control systems, renewable energy equipment, power supplies, servo drives and advanced troubleshooting tasks. With applications across industrial automation, electrical engineering, factory maintenance, HVAC servicing, renewable energy systems, machinery repair, building electrical maintenance, commercial facilities, technical training and laboratory testing, the TA813 Series is a versatile electrical diagnostic tool for electricians, maintenance engineers and professional technicians.

The TA8315 Series True RMS Digital Clamp Meters are designed for professional electrical maintenance, industrial troubleshooting, HVAC servicing, and electrical installation. The series includes TA8315A, TA8315B, TA8315C, TA8315D, and TA8315E, offering True RMS measurement for accurate testing of both standard and non-linear electrical signals generated by variable frequency drives, motors, and modern electronic equipment. The series measures up to 600A AC current and 750V AC/DC voltage, while providing essential functions including resistance, capacitance, continuity, and diode testing. Depending on the model, additional features such as Non-Contact Voltage (NCV) detection, frequency, duty cycle, K-type temperature measurement, and square wave output are available, making the series suitable for applications ranging from routine electrical maintenance to advanced industrial diagnostics. A 5999/6000-count LCD display with backlight and built-in flashlight ensures clear visibility in dark electrical panels and maintenance environments. Data Hold and Relative Measurement functions simplify data recording and troubleshooting during field service. Designed in compliance with IEC safety standards, the TA8315 Series features CAT III safety protection and full-range overload protection for reliable and safe operation. Automatic ranging, auto power-off, and low battery indication improve convenience and extend battery life. Combining accuracy, versatility, and safety, the TA8315 Series is an ideal solution for electricians, maintenance engineers, industrial technicians, HVAC professionals, and electrical installers.

The TA8320 Series digital insulation resistance testers are designed for insulation testing, preventive maintenance and safety inspection of electrical equipment. They provide reliable insulation resistance measurements for motors, transformers, power cables, switchgear and other electrical systems, making them ideal for power utilities, industrial maintenance, manufacturing plants and electrical installations. The TA8321A offers selectable test voltages of 250V, 500V and 1000V, making it suitable for low-voltage electrical equipment and routine maintenance. The TA8322A extends the test range with an additional 2500V output, providing a professional solution for high-voltage cables, transformers, industrial motors and other high-voltage applications. Both models feature a built-in Guard terminal to minimize errors caused by surface leakage current, ensuring greater measurement accuracy. In addition to insulation resistance testing, they also support AC voltage measurement up to 750V, allowing users to verify the presence of live voltage before testing for enhanced operational safety. A large LCD simultaneously displays insulation resistance and test voltage, while automatic data hold, overload indication and low battery warning improve usability. The TA8322A further incorporates an insulation resistance alarm, enabling technicians to quickly identify equipment with degraded insulation. Powered by either batteries or an external AC adapter, the testers are suitable for both portable field inspections and continuous bench testing. Designed in accordance with international IEC safety standards and equipped with comprehensive protection features, the TA8321A/TA8322A Series delivers a dependable solution for insulation testing, preventive maintenance and electrical safety verification across a wide range of industrial applications.

The TA8331A digital earth resistance tester is a professional instrument designed for measuring earth resistance and earth voltage in electrical grounding systems. It is widely used in power distribution, lightning protection, industrial maintenance, telecommunications, building installations and preventive electrical inspections to verify the safety and reliability of grounding systems. The tester utilizes the industry-standard 4-pole measurement method and also supports 2-pole simplified testing, providing flexible solutions for both standard installations and sites where auxiliary earth electrodes cannot be easily installed. With a measurement range of 0–2000Ω, it is suitable for testing protective grounding systems, electrical equipment, transformers, distribution panels and grounding networks. Built-in AC 200V earth voltage measurement allows users to verify the presence of hazardous voltage before testing, improving operational safety. A large LCD displays measurement results clearly and includes Data Hold, low battery indication and over-range warning for convenient field operation. The instrument can be powered by batteries or an external DC adapter, making it suitable for both portable inspections and continuous testing. Designed in accordance with IEC safety standards, the TA8331A features overload protection, double insulation and complete test accessories, delivering reliable performance for electrical contractors, maintenance engineers and grounding system inspections.

The TASI TA862A Earth Resistance Tester is a professional grounding measurement instrument featuring high-precision microprocessor control technology. Integrating earth resistance testing, ground voltage detection and data storage functions, it provides accurate and reliable solutions for electrical grounding inspection in various working environments. This Earth Resistance Meter / Ground Resistance Tester supports 2-wire measurement, 3-wire measurement and simplified testing methods, allowing flexible testing of different grounding systems and installation conditions. The instrument is equipped with a large digital display for clear readings and built-in memory capable of storing up to 100 measurement records, enabling convenient data review, inspection reporting and long-term maintenance management. With average, maximum and minimum measurement functions, the TA862A effectively reduces the influence of soil conditions, electromagnetic interference and environmental factors, ensuring stable and accurate measurement results. The integrated AC ground voltage detection function helps identify potential voltage hazards in grounding circuits, improving operator safety during field testing. Designed with automatic power-off and energy-saving features, the compact and portable Grounding Resistance Tester is suitable for electricians, electrical engineers, safety inspectors and maintenance technicians. The TA862A is widely used in power transmission and distribution systems, substations, telecom base stations, solar photovoltaic plants, wind power facilities, construction sites, lightning protection projects, industrial factories, electrical equipment maintenance, railway transportation systems, oil and gas facilities, data centers, warehouses, property management facilities, electrical fire inspections and security system grounding projects. It is mainly used for testing ground grids, protective grounding systems, lightning protection grounding, anti-static grounding, equipment grounding electrodes and building grounding systems, providing reliable measurement data for installation acceptance, preventive maintenance and electrical safety inspections.

The TASI TA872A RCD Tester is a professional electrical safety testing instrument designed for verifying the performance of residual current devices (RCD), earth leakage circuit breakers, leakage protection switches and low-voltage electrical protection systems. It accurately measures trip current and trip time, while also supporting line-to-earth voltage and neutral-to-earth voltage measurement to help engineers evaluate the operating condition of electrical safety protection devices. Featuring a compact and durable design, the TA872A Leakage Circuit Breaker Tester is ideal for on-site inspection, installation verification and routine electrical maintenance. The instrument provides multiple leakage current test selections to meet different testing requirements for RCDs, RCBOs and various leakage protection devices. Built-in data storage, backlit display, auto power-off and USB data transfer functions allow users to record test results, export measurement data and manage inspection reports efficiently. The TA872A Residual Current Device Tester is widely used in electrical safety inspection, fire protection testing, building electrical acceptance, power distribution maintenance, industrial factory electrical maintenance, property facility management, railway and transportation electrical systems, EV charging station installation inspection, commercial building power systems, mechanical and electrical installation projects, and third-party electrical safety assessment services. It is suitable for testing leakage protection devices installed in distribution boxes, electrical cabinets, residential power systems, industrial control panels and low-voltage distribution networks. The instrument helps identify protection failures, abnormal tripping performance and insufficient leakage protection sensitivity, ensuring safer operation of electrical equipment and power systems.