LCD Digital Multimeter DT-830B Electric Voltmeter Ammeter Ohm Tester AC/DC 750/1000V Amp Volt Ohm Tester Meter The DT830 digital multimeter is a three-and-a-half-digit LCD display compact digital multimeter. It can measure AC and DC voltage, DC current, resistance, transistor value, diode conduction voltage, and circuit continuity. A rotary switch allows selection of measurement functions and ranges with a total of 19 range settings. The maximum display reading is 1999, with automatic polarity indication and "0" display. Overload conditions are indicated by "1" or "-1". Includes a diode test mode for continuity checking. Specifications: 1. Measurement Ranges AC and DC Voltage (AC frequency range: 45Hz to 500Hz): - DC Voltage Ranges: 200mV, 2000mV, 20V, 200V, 1000V - AC Voltage Ranges: 200V, 750V - DC Voltage Accuracy: ±(0.8% of reading + 2 digits) DC Current: - Ranges: 200µA, 2000µA, 20mA, 200mA, 10A - DC Current Accuracy: ±(1.2% of reading + 2 digits) - Maximum voltage drop: 250mV Resistance: - Ranges: 200Ω, 2000Ω, 20kΩ, 200kΩ, 2MΩ - Accuracy: ±(2.0% of reading + 3 digits) Diode Test: - Range: 0 to 1.5V - Test current: approximately 1mA Transistor DC Current Gain (hFE) Test: - Test conditions: VCE = 2.8V, IB = 10µA - Supports NPN and PNP transistors Continuity Test: - Tests circuit continuity with audible beep when resistance is low 2. Sampling Rate: Approximately 2.5 times per second (0.4s update interval) Panel and Operation: 1. Display: Three and a half digit LCD 2. Power: Turn the function switch to any measurement position to power on; turn off by switching to OFF position 3. Capacitance Measurement Socket: This model does not support capacitance measurement 4. Function Range Switch: Selects measurement type and range 5. 10A Current Input Jack: Use for measuring currents from over 200mA up to 10A. Insert red probe here when measuring high current 6. mA/µA Current Input Jack: Use for measuring currents below 200mA. Insert red probe here for low current measurements 7. V/Ω Input Jack: Use for measuring voltage, resistance, diode, and continuity. Insert red probe here for these measurements 8. COM Jack: Connect black probe to this terminal for all measurements 9. Transistor Test Socket: Insert transistor leads into E (Emitter), B (Base), C (Collector) holes according to type (NPN or PNP) for hFE testing Package Included: - Multimeter x1 (batteries not included) - Test Leads x1 - User Manual x1 - Warranty Card x1 Note: When selecting "Multimeter test pen", the multimeter is not included.