Digital Outlet Meter with Overload Protection This multi-functional outlet meter accurately measures power (W), energy (kWh), current (A), voltage (V), frequency (Hz), and cost. Track energy consumption and costs for home and office appliances at a glance. Accurate and storable data: The backlit LCD display ensures data visibility in low-light conditions. All measurement data is saved for extended periods. Overload protection: The meter features a high-precision current sensor. If it exceeds the maximum power of 3680W, it will display "OVERLOAD" and sound an alarm. Voltage: 230V - 250V; Current: Max 13A; Power: 0.0W - 3680W; Calculation starts when the detected power value is greater than 2W. Easy to use: The four buttons on the outlet meter are user-friendly. Compatible with standard European outlets, ideal for various electronic devices, computers, printers, routers, set-top boxes, refrigerators, etc., in homes and offices.