Description

KWS-303 AC Power Meter 85–290V / 40A – High-Precision Voltage, Current & Energy Monitor

The KWS-303 AC Power Meter (85–290V / 40A) is a compact, reliable, and highly accurate digital power monitoring solution designed for both professional and personal electrical measurement applications. Engineered to deliver real-time monitoring of voltage, current, power, energy consumption, frequency, and power factor, the KWS-303 is an essential tool for electricians, engineers, technicians, and energy-conscious users.

Whether you are managing industrial equipment, monitoring home energy consumption, or testing AC appliances, the KWS-303 AC Power Meter provides dependable performance with an easy-to-read LCD display and wide measurement range. Its durable design and straightforward installation make it suitable for a variety of environments including residential panels, workshops, laboratories, factories, and commercial buildings.

Accurate & Comprehensive Electrical Measurements

The KWS-303 supports a wide voltage range of 85–290V AC, making it compatible with most global single-phase AC power systems. With a maximum current capacity of 40A, it can safely monitor high-load devices such as air conditioners, heaters, motors, compressors, and industrial machinery.

This multifunction AC meter displays multiple electrical parameters simultaneously, including:

• AC Voltage (V)

• AC Current (A)

• Active Power (W)

• Energy Consumption (kWh)

• Frequency (Hz)

• Power Factor (PF)

The integrated energy monitoring function allows users to track power usage over time, helping identify inefficiencies, reduce energy costs, and optimize electrical performance.

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User-Friendly LCD Display

The KWS-303 features a bright, backlit LCD screen that clearly presents all measured values at a glance. Even in low-light conditions, readings remain sharp and easy to interpret. The well-organized display layout eliminates guesswork, allowing quick diagnostics and efficient monitoring without additional tools.

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Built for Safety & Reliability

Safety is a key design focus of the KWS-303 AC Power Meter. The device is constructed with high-quality electronic components to ensure stable performance, long operational life, and accurate readings. Its robust ABS housing offers excellent resistance to heat and impact, making it suitable for long-term installations.

The meter is designed for panel mounting, ensuring a secure and professional installation. Clear terminal labeling simplifies wiring and reduces installation errors, even for complex electrical systems.

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Ideal Applications

The versatility of the KWS-303 makes it suitable for a wide range of applications:

• Home energy monitoring and power audits

• Industrial and commercial electrical systems

• Renewable energy systems (solar inverters, backup power)

• Laboratory testing and equipment evaluation

• Workshop machinery monitoring

• HVAC systems and heavy appliances

Whether you are troubleshooting electrical faults or managing energy efficiency, this power meter provides the data you need with precision.

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Key Features of the KWS-303 AC Power Meter

• Wide voltage measurement range: 85–290V AC

• High current capacity up to 40A

• Real-time monitoring of voltage, current, power, energy, frequency, and power factor

• Clear LCD digital display with backlight

• Accurate and stable readings

• Energy consumption tracking in kWh

• Compact, space-saving panel-mount design

• Durable ABS housing for long-term use

• Easy installation with clearly marked terminals

• Suitable for residential, commercial, and industrial applications

• Reliable performance under continuous operation

• Ideal for energy saving and system diagnostics

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Why Choose the KWS-303 Power Meter?

The KWS-303 AC Power Meter offers an excellent balance of accuracy, durability, and affordability. Unlike basic voltage or current meters, it provides a complete overview of electrical performance, helping users make informed decisions about power usage and system efficiency.

Its wide compatibility and professional-grade performance make it a trusted choice for both DIY users and experienced professionals.

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Learn More About AC Power Measurement

To understand how AC power meters work and why they are essential in electrical systems, you can visit this external resource:
👉 https://en.wikipedia.org/wiki/Electric_power_measurement

Data sheet