The Model 555 provides multi-channel 1 ns-resolution timing, delaying, gating, pulsing and syncing functions for a very low price without compromising quality. There are many practical modes of operation and features in addition to the traditional digital delay and pulse generator modes. For usefulness and value there is nothing comparable.
Each channel provides both delays and widths so a 2-channel Model 555 provides the same delay and width functionality of competitive 4-channel units.
This Digital Delay/Pulse Generator provides precise delays and widths with 1 ns resolution for times up to 100 seconds. These pulses are synchronized to a common trigger or an internal trigger. This is particularly useful where several pulses or gates need to be delayed and timed with respect to each other or the common trigger.

SPECIFICATIONS:
• Delay: 0 to 99.999999999 sec with 1ns resolution
• Pulse Width: 10 ns to 99.999999999 sec with 1 ns resolution
• Delay Resolution: 1 ns
• Accuracy: 1 ns + 0.0001 x time
• RMS Jitter: 1 ns
• Trig Delay: Ext Trig to T0 < 250 ns

Comes with power supply (not shown)