How can I tell the different circuit series of Firenock?
There are 4 different circuit groups; in 2 different sizes. The hunting function circuit will stay lit until someone deactivates it or the battery runs out. The target function will automatically shut itself off after 15-17 seconds. The visual difference between the hunting function and the target function circuits is that the target function circuits have a small black dot which is used to protect the digital timer. To tell what style of nock the circuit will fit; the position of the clip and lock tabs will indicate if the circuit is designed for either the S/C/H/F or the A/E nocks. The circuit that will fit the AE style (E/K series) has the tab next to the LED while the S/C/H/F (H/T series) has the tab next to the mini-G switch. Below are the pictures (front and back) of all 4 series of Firenock circuits.
