The Digital Insulation Resistance Tester features a safe design and improved circuitry. It is a new model with enhanced functionality, higher precision, and easier operation. This durable tester is shock-resistant, dust-proof, and damp-proof, suitable for outdoor use. Features: - Capability: Performs tests at multiple test voltages: 100V, 250V, 500V, 1000V; measures voltage below AC750V; resistance measurement range from 1 MΩ to 20 GΩ. - Practical Functions: Auto-ranging during resistance measurement; data hold function; low battery indicator; high voltage warning. - Large LCD Display: Features a 3 1/2 digit LCD display with a maximum reading of 1999 for clear visibility. - Safe to Use: Rugged ABS housing provides dust and damp resistance; strong load capacity with output short-circuit current of approximately 1.0mA; built-in protective circuit guards against voltage surges. - User-Friendly Design: Rotary switch for easy voltage selection; includes test leads, alligator clips, and a built-in kickstand. - Wide Application: Suitable for testing various electrical equipment and insulation materials such as transformers, motors, cables, switches, and appliances. Specifications: - Material: ABS - Color: Red - LCD Size: 68 x 44mm / 2.67 x 1.73in - Power Supply: 6 x 1.5V AA batteries (not included) - Operating Temperature: 0°C to 40°C - Relative Humidity: Less than 80% - Safety Rating: CAT-II 1000V, CAT-III 600V - Unit Dimensions: 205 x 90 x 55mm / 8.07 x 3.54 x 2.16in - Unit Weight: 450g / 15.87oz - Package Weight: 774g / 27.3oz - Package Dimensions: 23.2 x 16.2 x 7cm / 9.13 x 6.37 x 2.75in Technical Specifications: - Test Voltages: 100V, 250V, 500V, 1000V - Output Voltage: 90% to 110% of rated test voltage - Resistance Measurement: - Range: 1 MΩ to 20 GΩ - Resolution: 0.01 MΩ - Accuracy: - 1 MΩ to 200 MΩ: ±3% of reading + 5 digits - 200 MΩ to 10 GΩ: ±5% of reading + 5 digits - 10 GΩ to 20 GΩ: ±10% of reading + 5 digits - AC Voltage Measurement: - Range: 1V to 750V - Resolution: 1V - Accuracy: ±2% of reading + 5 digits - Frequency Response: 40Hz to 400Hz Package Includes: - 1 x Insulation Tester - 1 x Storage Bag - 1 x Test Leads (pair) - 1 x Probe Clips (pair) - 1 x User Manual (English)