Features:- Portable handheld size, easy to carry- Universal digital multimeter, wildly useful and versatile- Large LCD display screen, easy to read- Auto-ranging digital multimeter using double-integral style A / D transform as the core- Be used to measure AC / DC voltage, AC / DC current, resistance, capacitance, diode and continuity testing, temperature, frequency and etc.Specification:- Max display: ZT302: 9999 counts- Measurement mode: double-integral style A / D transform- Sample rate: 3 times per second- Over range indication: OL- Working environment: 0 - 40 degree- Relative humidity: less than 80pct- Auto range: yes- Backlight display: yes- Polarity automatic recognition: yes- Automatic shutdown: yesSpecifications:(1) Frequency: 100/1000/10K/100k/10M (±0.1% ±2)(2) Capacitance: 10nF (±5.0%±20), 100nF/1uF/10uF/100uF/1000uF (±2.0%±5), 10MF (±5.0%±5)(3) DC voltage: 800mV (± 1.0%±10), 8V/80V/800V/1000V (± 0.5%±3)(4) AC voltage: 800mV (± 3.0%±3), 8V/80V/800V/750V (± 1.0%±3)(5) DC current ：800uA/8000uA (± 1.5%±3), 80mA/800mA (± 1.5%±3), 10A (± 1.5%±3)(6) AC current ：800uA/8000uA (± 1.5%±3), 80mA/800mA (± 1.5%±3), 10A (± 1.5%±3)(7) Resistance: 800 (± 0.5%±3), 8K/80K/800K/8M (± 0.5%±2), 80M (± 1.5%±3)(8) Temperature: <;; 400 ± C (1.0%±5), more than 400 DEG C ± (1.5%±15)<;; 752 ± (1.0%±5), more than 752 degrees Fahrenheit (1.5%±15).(9) share ratio: 1% to 99% (± 1%)(8) measurement methods: double integral A/D converter(9) ultra range display: OL(10) working environment: 0~40 C, relatiWe have commodity security services. If the product you received has quality problems, please feel free to contact us, we can provide you with a return service.