The right image shows a multimeter that has a black probe inserted into the center port and a red probe inserted into the left-most port. This setup is rated to measure current up to 10 amps. Figure 5. This multimeter has three different ports labeled 10A, COM (which stands for mon"), and mAVΩ.Take your Orion portable pH meter outside of lab. Waterproof, IP67-rated, one-handed operation features help ease remote applications in difficult environmentsThis digital multimeter has a display capa of 1999 and also features a data hold button to retain information. Test AC/DC voltage, AC/DC current, frequency, resistance, transistor and diode, capacitance, temperature and audible continuity. Features an easy-to-read 3-1/2 digit LCD display.Mar 08, 2021 · In the first image, the receiver has sub-meter accuracy with 95–98% precision. That is, 95–98% of the time, it will plot a point within one meter of the true point. In the second image, the receiver has sub-meter accuracy with 50% precision, i.e., the points fall within the meter radius 50% of the time.