Item features: Model: S30X (You can find the difference in the table below) Maximum number: 9999 Color: S30X Black Battery and power supply: built-in 1100mA 3.7V lithium battery DC voltage: 0-620V (manual mode) 0.5-620V (Auto mode) AC voltage: 0-620V (manual mode) 0.8-620V (Auto mode) Resistance: 0.0-9.999M Capacity: 0.5uF-999.90.5uF 1000uF-9999uF AC current: 1-610mA (40-200Hz) DC current: 1-610mA Frequency: 10.0-99.9Hz 100-1000Hz Infrared temperature measurement: -20-0 (-4F-32F) 0-400(32F-752F) Object distance ratio: 12:1 (silicon lens) Ambient temperature: 0-50 On-Off: The measured resistance is <30 and the buzzer sounds. Low voltage diode mode: Measure diodes within 2.0V High voltage diode mode: open circuit voltage 15V, test current 1mA Online testing is prohibited, otherwise the high voltage output may cause damage to low voltage devices. Power supply: Built-in 1200mA 3.7V lithium battery and supports installing additional 2xAAA AA alkaline batteries Size: 151*78*21mm Weight: 245g Characteristics: 1. Dual-mode power supply: The multimeter has two independent power supply systems, with priority being given to the use of lithium battery power supply, such as: 2.LCD color screen display: The high-definition color screen display is clearly visible in sunlight and darkness. The digital display can count up to 9999. The larger the count, the higher the accuracy. The measurement is not restricted for you! 3. Multifunctional composite multimeter: S30 = digital multimeter + infrared thermometer + pen + circuit analyzer 4. High voltage diode test: The high voltage diode mode can illuminate up to 15V light emitting diodes to quickly determine the good and bad and cover more than one type of diode test, such as: B. rectifier diodes, voltage regulator diodes and so on. 5. Scenarios: lighting industry, electronics and electrical, home maintenance, automobile maintenance, etc. 6. Function details: AC and DC current, true RMS value, maximum screen, DC voltage, AC voltage, infrared temperature measurement, resistance, diode, frequency, beep on and off, high voltage diode, flashlight, automatic identification, dual power system, firewire detection, rechargeable batteries , Capacitors, non-contact detection, LCD color screen, low battery alarm! Package Contents: 1 x Multimeter 1 x User Manual 1 x Pen 1 x Tool Kit 1 x Type-C Charging Cable