The Flynn Burner Corporation flame relay and ignition module is an excellent choice for managing ignition and flame monitoring.  The 407597 120 VAC Dual Rod unit uses a separate rod for ignition (known as the electrode) and another for flame sensing (known as the flame rod). 

The unit is CSA approved and can operate in environments with a temperature range between -40°F to 185°F.  It features a compact housing to protect the micro processor ignition circuit board and is perfect for ignition and flame monitoring for burners with operating capacity below 400,000 BTU/hr. 

The Flynn 407597 is standard and operates with 1 trial for for ignition that lasts for 10 seconds and 0 second pre-purge.  

When installing the unit it is best practice to keep the spark gap 0.2 inches and use Resistive Wire Only for the ignition cable; such as Red Silicone Ignition Cable.  

When working with 120 VAC ignition module, be sure your solenoid gas valve coils are 120 VAC also.  This unit has a current draw of 0.2 amps.