• 【Professional RCD/Loop Testing】Advanced electrical safety testing instrument designed for residual current device (RCD) and loop impedance testing in residential, commercial, and industrial applications.
• 【Multi-Function Measurement】Comprehensive testing capabilities including trip current, trip time, contact voltage, loop resistance, frequency measurement, and voltage testing (0-440V AC).
• 【Large Data Storage Capacity】Store up to 1000 measurement results with easy access through MEMO function and USB 2.0 interface for PC data transfer and analysis.
• 【High-Resolution LCD Display】4.7 inch backlit LCD screen with clear digital readouts, automatic range selection, and safety warning indicators for enhanced visibility in all lighting conditions.
• 【Multiple Test Modes】Supports various test configurations including L-N, L-PE, N-PE connections with selectable test currents (10mA, 30mA, 100mA, 300mA, 500mA) and fast/slow testing modes.
• 【Safety Compliance】Meets EN61010-1, EN61557-3, EN61326-1 standards with CAT III 1000V and CAT IV 600V safety ratings for professional electrical testing applications.
• 【Portable Design】Compact dimensions (188 x 145 x 73 mm) with protective rubber housing and carrying case for convenient field use and transportation.

Specifications:

• Model: HT5910
• Display: High-resolution backlit LCD
• Dimensions: 188 x 145 x 73 mm
• Weight: Approximately 708g
• Power Supply: 8 x 1.5V AA batteries (not included)
• Voltage Measurement Range: 0-440V AC
• Frequency Range: 45-65 Hz
• Loop Resistance Range: 0.1-2000 Ω
• Test Current Options: 0.5, 1, 5 times rated current
• Current Settings: 10mA, 30mA, 100mA, 300mA, 500mA
• Data Storage: 1000 measurement records
• Safety Rating: CAT III 1000V, CAT IV 600V
• Operating Temperature: 0-40°C
• Storage Temperature: -20 to 70°C
• Auto Power Off: 10 minutes
• Interface: USB 2.0
• Material: ABS plastic with rubber protection