Features: 1. Function as 3 in 1:: datalogger + multimeter + temperature meter 2. The change trend analysis accessible via special chart mode 3. Voice warning supported, which assures measurement safety 4. Smart voice-reading accessible 5. 3999-count full scale reading 6. Larger display, easier data-reading; simulated bar chart comes as an added option Specification: Condition: 100% Brand New Model: B33+ Measurement Resolution Accuracy DC Voltage V 400.0mV/4.000V/40.00V/400.0V 0.1mV (0.5%+2dig) 1000V 1V (0.8%+2dig) AC Voltage(V) V 4.000V/40.00V 1mV (0.8%+2dig) 400.0V/750V 0.1V (1%+3dig) DC Current(A) uA 400uA/4000uA 0.1uA (0.8%+2dig) mA 40.00mA/400.0mA 0.01mA (0.8%+2dig) A 1.000A/10.00A 0.1mA (1.2%+3dig) AC Current(A) uA 400uA/4000uA 0.1uA (1%+3dig) mA 40.00mA/400.0mA 0.01mA (0.8%+2dig) A 1.000A/10.00A 1mA (2%+3dig) Resistance () 400/4.000k/40.00k/400.0k/4.000M 0.1 (0.8%+2dig) 40.00M 0.01M (2%+3dig) Capacitance (F) 40.00nF/400.0nF/4.000uF/40.00uF 0.01nF (2.5%+3dig) 100.0uF 0.1uF (3%+5dig) Frequency 4.999Hz/49,99Hz/499.9Hz/4.999kHz/49.99kHz/49.9kHz/ 4.999MHz 1mHz (0.8%+2dig) Duty Ratio 0.1%-99.9%typical value: Vrms=1V, f=1kHz 0.1% (1.2%+3dig) 0.1%-99.9%1kHz (2.5%+3dig) Temperature -50 - 400 Display 3999 Auto-scale Yes Offline Recording Function Yes Auto Power-off Yes Diode Test Yes Audion Test Yes Auto Power-off Yes On-off Warning Yes Low-battery Indicator Yes Data Hold Yes Relative Measurement Yes Max / Min Value Yes Bluetooth Module Yes LCD Backlight Yes Simulated Chart Yes Input Protection Yes LCD Size 69*52mm Battery 3V(2.5V*2)(not included) Weight: Approx. 495g / 17.5oz Size: Approx. 85 * 185 * 30mm / 3.4 * 7.3 * 1.2in Package List: 1 * Digital Multimeter 2 * Test Lead 2 * Clip 1 * Thermocouple