











(Unit: mm)



(Unit: mm)
Long range
Applicable modelsNF-TR4F
NF-TM4-H10
NF-TM4-H20
NF-TM4-H35
Ultra-long range
Heat resistant
Applicable modelsNF-TR4F
NF-TM4-H10
NF-TM4-H15
NF-TM4-H20
NF-TM4-H35
Side-view
Heat resistant
Applicable modelsNF-TM4-H10
NF-TM4-H20
NF-TM4-H35
Long range
Heat resistant
Applicable modelsNF-TM4-H15
| Type | Model | Thread Size |
Product image |
Features | Ambient temperature | Min. bending radius (mm) |
D4RF sensing distance (mm) | D12R sensing distance (mm) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 16/22 μs | 70 μs | 250 μs | 500 μs | 1 ms | 2 ms | 8 ms | 50 μs | 250 μs | 1 ms | 4 ms | |||||||
| Through-beam type | NF-TR8CF | M8 | ![]() |
Thread type Oil resistant Side view, Flexible, Free cut, IP68G |
-25 ... +70°C | R1 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 |
| NF-TR4CF | M4 | ![]() |
Thread type Oil resistant Side view, Flexible, Free cut, IP68G |
-40 ... +70°C | R1 | 900 | 3,000 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 1,015 | 2,925 | 3,500 | 3,500 | |
| NF-TR4F | M4 | ![]() |
Thread type Side view, Flexible, Free cut, IP67 Lens attachable |
-25 ... +70°C | R1 | 350 | 1,000 | 1,700 | 2,100 | 3,000 | 3,500 | 3,500 | 435 | 1,275 | 1,875 | 2,900 | |
| NF-TM4-H10 | M4 | ![]() |
Thread type Heat resistant Flexible, Free cut |
-40 ... +100°C When used continuously: -40 ... +90°C |
R2 | 450 | 1,200 | 2,000 | 2,500 | 3,000 | 3,500 | 3,500 | 470 | 1,365 | 1,935 | 3,250 | |
| NF-TM4-H15 | M4 | ![]() |
Thread type Heat resistant Free cut, IP67 Lens attachable |
-40 ... +150℃ When used continuously: -40 ... +130°C |
R35 | 500 | 1,600 | 2,000 | 2,500 | 3,500 | 3,500 | 3,500 | 630 | 1,630 | 2,285 | 3,500 | |
| NF-TM4-H20* | M4 | ![]() |
Thread type Heat resistant IP67 |
-40 ... +200°C | R10 | 200 | 550 | 900 | 1,100 | 1,300 | 1,700 | 3,000 | 275 | 780 | 1,105 | 1,780 | |
| NF-TM4-H35* | M4 | ![]() |
Thread type Heat resistant IP67 |
-60 ... +350°C | R25 | 350 | 900 | 1,400 | 1,900 | 2,500 | 3,000 | 3,500 | 410 | 1,205 | 1,730 | 2,740 | |
| Diffuse type | NF-DM6-H10 | M6 | ![]() |
Thread type Heat resistant Flexible |
-40 ... +100°C When used continuously: -40 ... +90°C |
R2 | 130 | 350 | 450 | 550 | 650 | 800 | 1,500 | 145 | 435 | 570 | 980 |
| NF-DM6-H15 | M6 | ![]() |
Thread type Heat resistant IP67 |
-40 ... +150℃ When used continuously: -40 ... +130°C |
R35 | 300 | 600 | 800 | 1,000 | 1,200 | 1,600 | 2,200 | 260 | 660 | 885 | 1,410 | |
●The sensing distances for diffuse reflective Fiber-Optic Cables are reference values measured using a 500 × 500 mm white paper.
* Due to fiber cable length, the fiber insertion indicators of the D4RF Series Fiber-Optic Sensors cannot be used.
| Type | Model | Product image |
Applicable Fiber-Optic Cables |
D4RF sensing distance (mm) | D12R sensing distance (mm) | Ambient temperature | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 16/22 μs | 70 μs | 250 μs | 500 μs | 1 ms | 2 ms | 8 ms | 50 μs | 250 μs | 1 ms | 4 ms | |||||
| Long range | NF-TA33 | ![]() |
NF-TR4F | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | -40 ... +200°C |
| NF-TM4-H10 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | ||||
| NF-TM4-H20 | 1,800 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 2,600 | 3,500 | 3,500 | 3,500 | ||||
| NF-TM4-H35 | 1,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 2,600 | 3,500 | 3,500 | 3,500 | ||||
| Ultra-long range | NF-TA34 | ![]() |
NF-TR4F | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | -40 ... +350°C |
| NF-TM4-H10 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | ||||
| NF-TM4-H15 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | ||||
| NF-TM4-H20 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | ||||
| NF-TM4-H35 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | ||||
| Side-view | NF-TA35 | ![]() |
NF-TM4-H10 | 500 | 1,300 | 2,000 | 2,500 | 3,000 | 3,500 | 3,500 | 585 | 1,690 | 2,200 | 3,500 | -40 ... +200°C |
| NF-TM4-H20 | 250 | 600 | 900 | 1,200 | 1,500 | 1,800 | 2,500 | 285 | 830 | 1,230 | 2,230 | ||||
| NF-TM4-H35 | 250 | 800 | 1,200 | 1,500 | 1,900 | 2,300 | 3,000 | 320 | 890 | 1,220 | 2,260 | ||||
| Long range | NF-TA36 | ![]() |
NF-TM4-H15 | 2,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 3,500 | 2,500 | 3,500 | 3,500 | 3,500 | -40 ... +200°C |

The oil-resistant NF-TR8CF and NF-TR4CF feature fiber coatings covered with fluoropolymer to prevent cutting oil from penetrating inside.
The detection area features a structure that prevents the accumulation of cutting oil and chips, as well as an oil-resistant spherical glass lens.
Detection of engine blocks in oil mist environment
Detection of of bottles in high temperature environment
Detecting chip parts in high temperature environment
* When using stand-alone type or main unit of interconnection type independently.