TII 11 Heavy Duty
TII 31 Maximum Duty
TII 126 Station Protector
TII 317 Maximum Duty
TII 358 Heavy duty
TII 355 & 356 Heavy/Maximum Duty
TII 44 3-Electrode
TII-71 3-Electrode with and without leads
TII-73 3-electrode with leads
TII-74 3-electrode without leads
TII-75 Heavy duty 3-electrode