UT81B Handheld or bench mulit-meter and scope. Runs on AC adapter or internal batteries and is great for feld or bench. Optically issolated USB works with included software for your PC. Note that in the specs below, when range says 400mV is means the meter reads 400mV max with 4 digits or 399.9mV so you can read something like 10.3mV with ease. What's in the package? Opto-issolated USB cable, safety probes, safety banana to BNC converter, aligator clips, power supply for bench use, Manual, CD with software for reading scope data from a PC, Uni-T 1 year warranty card, zippered case shown below.
| Basic Functions | Range | Best Accuracy |
|---|---|---|
| DC Voltage | 400mV, 4V, 40V, 400V, 1000V |  (0.8%+8) |
| AC Voltage | 4V, 40V, 400V, 750V | (1%+15) |
| DC Current | 400mA, 4000mA, 40mA, 400mA, 4A, 10A | (1%+8) |
| AC Current | 400mA, 4000mA, 40mA, 400mA, 4A, 10A | (1.5%+8) |
| Resistance | 400, 4k, 40k, 400k, 4M, 40M | (1%+5) |
| Capacitance | 40nF, 400nF, 4mF, 40mF, 100mF | (3%+8) |
| Frequency | 10Hz~10MHz | (0.1%+3) |
| Vertical Accuracy | (5%+1) | |
| Input Sensitivity | 20mV/div-500V/div (1-2-5) |  |
| Horizontal Accuracy | (0.01%+1) | |
| Timebase Range | 100ns/div-5s/div (1-2-5) | |
| Bandwidth | 8MHz | |
| Display Resolution | 160X160 | |
| Real-Time Sample Rate | 40MSa/s | |
| Duty Cycle | 0.1%~99.9% | |
| Special Functions | ||
| Diode | | |
| Continuity Buzzer | | |
| Display | 160x160 Monochrome | |
| Trigger Types | Free Run / Normal / Single Shot | |
| Memory | 10 screens and setups | |
| Contrast and Bright Setup | | |
Input Impedance For DCVoltage Measurement | Around 10Mohm | |
| Sleep Mode | | |
| Low Battery Display | | |
| Display Backlight | | |
| USB | | |
| Max.Display | 3999 | |
| Power | 1.5V Battery (R6) x 6 |
| LCD Size | 60 x 60mm |
| Product Color | Red and Grey |
| Product Net Weight | 498g |
| Product Size | 200 x100 x 48mm |
| Standard Accessories | Test Lead , Battery, English Manual ,Alligator Clip、 |