The OS-1022 is manufactured by Tecpel, and is a portable oscilloscope multimeter that is ideal for use in applications such as industrial trouble shooting, auto diagnostic, and field service. The unit has a tiny, rigid, and lightweight design, and it can be operatied with the use of a battery or with an 8.5 V/1500 mA DC adapter.It has the capacity to measure up to 1,000 V DC, together with up to 750 V AC, and as well as up to 20 MHz.