Key capabilities and specifications - Variable power supply combined with a multifunctional digital frequency meter - High precision frequency counter with measurement capability up to 1 GHz - LCD display for clear, easy-to-read readings - Mains requirement: 220 V +/- 10% - Reference frequency: 50 Hz +/- 5% - Operating environment: 0 to 40 C Why this product helps you - All-in-one instrument: Integrates a variable power supply with a precise frequency measurement tool, reducing the need for separate devices and saving bench space. - Accurate and reliable: High precision frequency counting up to 1 GHz supports testing and debugging of RF and digital circuits with confidence. - Easy to read: LCD display provides clear readings, improving accuracy in varying lighting conditions. - Standard power compatibility: Designed to operate on 220 V mains within +/- 10%, suitable for common laboratory and workshop environments. - Stable operating range: Functional across typical room and lab temperatures from 0 to 40 C. Practical use scenarios - Scenario 1: Bench testing of RF oscillators and related circuits. Use the variable power supply to set the correct operating conditions, then verify the output frequency with the high precision counter up to 1 GHz. - Scenario 2: Educational laboratory demonstrations. Show students how a single instrument can regulate supply voltage while measuring and verifying signal frequency with accuracy. - Scenario 3: Field service or electronics repair. Quickly check that the device under test receives proper power and operates at the correct frequency, helping to diagnose issues efficiently. Performance and compatibility highlights - Function: Variable power supply and multifunction digital frequency meter with high precision frequency counting up to 1 GHz - Display: LCD for clear, quick readings - Power input: 220 V mains with +/- 10% tolerance - Frequency reference: 50 Hz with +/- 5% tolerance - Operating temperature: 0 to 40 C This description preserves the original product features and specifications while presenting them in a clear, customer-focused format with practical usage examples.