The TDS420A Digital Storage Oscilloscope is designed for professionals who demand high precision and fidelity from their measurements. The instrument has a bandwidth of 200MHz, four channels, four digitizers, has a sample rate of 100 MS/s on both channels. A longer record length along with superb sensitivity and signal processing make the TDS420A the ideal tool for detailed analysis, precision research, digital design, and manufacturing testing. Increased bandwidth for accurate measurements on faster signals, longer record length provides high resolution over long time frames and an easy-to-use scope interface are a few of the benefits of this scope. Key applications include: Electronic equipment troubleshooting, automotive design and mechanical analysis. " Bandwidth: 200MHz " Channels: 4 " Max Sample Rate: 100 MS/s on all channels " Sweep Speeds: 1 ns/div - 20 s/div " Vertical Sensitivity: 1 mV - 10 V " Vertical Resolution: 8 Bits (up to 12 Bits w/Hi-Res) " Record Length: 30K/channel (120K w/Opt. 1M) " Standard Advanced Features: 14 Hardcopy Formats, 25 Automatic Measurements, Peak Detect, Roll Mode (triggered and untriggered roll), Pass/Fail Limit Testing, Advanced Signal Processing