Compare Quick view Len Gordon 38-0399-SS Len Gordon | Sensor, Hi-Limit, Len Gordon, 15"Cable x 1/4"Bulb MSRP: Was: Now: $11.48 Hi-Limit Sensor by Len Gordon. 15" Cable length x 1/4" Bulb diameter. Used on BL-45, BL-46, BL-50, BL-60 & BL-70 systems