The table below includes information about thermal imager lenses, their part numbers, a description of each, and which model group each lens is associated with. This includes discontinued lenses, identified with red font and within the Description column.
| Part # | Model | Description | Model group associated with accessory |
| 4961174 | FLK-0.75X-WIDE-LENS | Wide Angle IR Smart Lens | RSE-300, RSE-600 |
| 4961195 | FLK-MACRO-LENS | Macro IR Smart Lens | RSE-300, RSE-600 |
| 4961658 | FLK-RSE-RJ45-03 | ETHERNET CABLE (SHORT) FOR JUNCTION BOX | RSE-300, RSE-600 |
| 4962244 | FLK-RSE-LT-M12 | LT (80C) 8 PIN CABLE M12 CONNECTOR FOR ETHERNET 7.5 M (25FT) | RSE-300, RSE-600 |
| 4961163 | FLK-2X- LENS | 2X Telephoto IR Smart Lens | RSE300, RSE600 |
| 4961188 | FLK-4X-LENS | 4X Telephoto IR Smart Lens | RSE300, RSE600 |
| 4607064 | FLK-LENS/25MAC2 | 25 MICRON MACRO IR LENS FOR TIX560, TIX520 | TIX580, TiX560, TiX520, TiX500, Ti200, Ti200Pro, Ti300, Ti300Pro, Ti400, Ti400Pro, Ti450Pro, Ti480Pro, Ti450 SF6, Tix501, Ti401+, Ti300+, TiX580U |
| 4607058 | FLK-LENS/4XTELE2 | 4X TELEPHOTO IR LENS FOR TIX560, TIX520,TI400.TI300,TI200 | TIX580, TiX560, TiX520, TiX500, Ti200, Ti200Pro, Ti300, Ti300Pro, Ti400, Ti400Pro, Ti450Pro, Ti480Pro, Ti450 SF6, TiX501, Ti401+, Ti300+, TiX580U |
| 4335350 | FLK-LENS/TELE2 | INFRARED TELEPHOTO LENS | TIX580, TiX560, TiX520, TiX500, Ti200, Ti200Pro, Ti300, Ti300Pro, Ti400, Ti400Pro, Ti450Pro, Ti480Pro, Ti450 SF6, TiX501, Ti401+, Ti300+, TiX580U |
| 4335361 | FLK-LENS/WIDE2 | INFRARED WIDE ANGLE LENS | TIX580, TiX560, TiX520, TiX500, Ti200, Ti200Pro, Ti300, Ti300Pro, Ti400, Ti400Pro, Ti450Pro, Ti480Pro, Ti450 SF6, TiX501, Ti401+, Ti300+, TiX580U |
| 4575032 | FLK-XLENS/MACRO1 | CLOSE-UP 0.2X; 85.4 X 63.2MM2; 81 UM; 1024 COMPATIBLE | TiX1000, TiX660, TiX640 |
| 4575044 | FLK-XLENS/MACRO2 | CLOSE-UP 0.5X; 34.3 X 25.3MM2; 32 UM; 1024 COMPATIBLE | TiX1000, TiX660, TiX640 |
| 4575059 | FLK-XLENS/MACRO3 | CLOSE-UP 0.5X; 35.1 X 26.5MM2; 35 UM; 1024 COMPATIBLE | TiX1000, TiX660, TiX640 |
| 4575003 | FLK-XLENS/STAN | STANDARD LENS; 32.4 X 24.7; 0.6 MRAD; 1024 COMPATIBLE | TiX1000, TiX660, TiX640 |
| 4575026 | FLK-XLENS/SUPTELE | SUPER TELEPHOTO LENS; 8.1 X 6.2; 0.1 MRAD; 1024 COMPATIBLE | TiX1000, TiX660, TiX640 |
| 4574973 | FLK-XLENS/SUPWIDE | SUPER WIDE-ANGLE LENS; 135.8 X 101.4; 2.3 MRAD;1024 COMPATIBLE | TiX1000, TiX660, TiX640 |
| 4575015 | FLK-XLENS/TELE | TELEPHOTO LENS; 16.4 X 12.4; 0.3 MRAD; 1024 COMPATIBLE | TiX1000, TiX660, TiX640 |
| 4574986 | FLK-XLENS/WIDE | WIDE-ANGLE LENS; 67.8 X 50.7; 1.1 MRAD; 1024 COMPATIBLE | TiX1000, TiX660, TiX640 |
| 3441176 | FLK-LENS/TELE1 | Telephoto IR Lens (DISCONTINUED MARCH 2017) | Ti27, Ti29, Ti32, TiR27, TiR29, TiR32 |
| 3441183 | FLK-LENS/WIDE1 | Wide-Angle IR Lens (DISCONTINUED MARCH 2017) | Ti27, Ti29, Ti32, TiR27, TiR29, TiR32 |