The BK Precision 2120C-220V is a dual trace oscilloscope that offers high performance at a low price. Most competitor's entry level oscilloscopes have a 20 MHz bandwidth, while BK Precision's 2120CEXD has a bandwidth of 30 MHz and has a 220V rating. The BK Precision 2120C-EXD oscilloscope is built by and backed by BK Precision, a company that has been selling reliable, durable, value priced test instruments for over 60 years.