Unit Locker

A smart electrical protection device designed to limit, control, and safeguard your power usage. A unit locker helps monitor electricity units and can lock or disconnect power once a set consumption limit is reached, protecting both your appliances and your energy budget. This type of device combines functionality for voltage and current protection with smart unit usage control — ensuring safe and cost‑effective operation for homes and businesses.

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Voltage Protector

Our voltage protectors guard electrical systems and appliances from harmful voltage fluctuations. They automatically cut power when voltage levels go above or below safe thresholds, preventing damage due to spikes, surges, or brownouts. This protection prolongs the life of your equipment and reduces risk of electrical faults.

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Amp Protector

Amp protectors monitor electrical current flow (amperage) and trip the circuit if the current exceeds safe limits. This prevents overheating, overloads, and potential fire hazards in wiring and connected devices, keeping your electrical setup safe and efficient.

Why Choose Master Electrical

Reliable Protection: Products designed to prevent damage from voltage surges, current overloads, and inefficient energy usage.

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Energy Management: Unit locker and unit‑lock devices help control and optimize electricity consumption.

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Safety First: Minimizes risks to expensive appliances and electrical infrastructure.

Versatile Solutions: Ideal for household, commercial, and industrial electrical setups