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Fibre Optic Sensors

High Performance Type- SP Series

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Technical Specs

Screw Mounted Type

Thrubeam type

Model SP-236FA SP-236TZ SP-271TZ SP-278TZ SP-278TG SP-28F
Detecting distance (mm) 0~550 0~450 0~3600 0~3100 0~1800 0~3600
Smallest detectable object ø0.005
Optical axis diameter - ø2.3 ø1 .13 ø1
Bend radius (mm) R25 R2 bend-resistant R1 bend-resistant R2 bend-resistant R10 stainless steel R25
Fiber element length (diameter) 1 m free-cut (ø1.3×2) 1 m free-cut (ø1.3×2) 2 m free-cut (ø2.3) 2 m free-cut (ø2.2) 1 m cut not allowed 2 m free-cut (ø2.2)
Ambient temperature -40 to +50°C -40 to +70°C -20 to +50°C -40 to +50°C -40 to +50°C -40 to +70°C
Shape Threaded Hexagonal Threaded
Size M3 M4
Weight Approx. 12g Approx. 12g Approx. 22g Approx. 43g Approx. 43g Approx. 21g

Model SP-279 SP-278 SP-278V SP-278G SP-272Z SP-272
Detecting distance (mm) 0~2200 0~3600 0~1800 0~3600
Smallest detectable object ø0.005
Optical axis diameter ø1 ø1 .13 ø1 .5
Bend radius (mm) R4 R4 bend-resistant R0.5 bend-resistant R10 stainless steel R2 bend-resistant R25
Fiber element length (diameter) 2 m free-cut (ø1.3) 2 m free-cut (ø2.2) 1 m cut not allowed 2 m free-cut (ø2.2) 2 m free-cut (ø2.2)
Ambient temperature -40 to +70°C -40 to +50°C -40 to +50°C -40 to +50°C -40 to +70°C
Shape Threaded
Size M4 M6
Weight Approx. 9g Approx. 25g Approx. 25g Approx. 39g Approx. 25g Approx . 25g


Model SP-R278TZ SP-R278TG SP-R278 SP-R28F SP-R278G
Detecting distance (mm)*¹ 0~3600 0~1800 0~3600 0~3600 0~1800
Optical axis diameter Transmission: ø1
Reception: ø3.2
Minimum bend radius(mm) R2 bend-resistant R10 stainless steel R2 bend-resistant R25 R10 stainless steel
Fiber element length (diameter) 2 m free-cut (ø2.2) 1 m cut not allowed 2 m free-cut (ø2.2) 2 m free-cut (ø2.2) 1 m cut not allowed
Ambient temperature -40 to +60°C -40 to +60°C -40 to +60°C -40 to +60°C -40 to +60°C
Shape Hexagonal Threaded
Size M4
Weight Approx. 25g Approx. 43g Approx. 21g Approx. 21g Approx. 41g
*1 When using the FX-N10 series. Since the cable length is 2 m (1 m), “3600 mm (1800 mm)” is the maximum value.



Reflective type

Model SP-122X SP-125X SP-136TZ SP-136FZ SP-136FG
Detecting distance (mm) 0~130 0~100 0~400 0~450
Smallest detectable object ø0.005 gold wire
Bend radius (mm) R25 R10 R2 bend-resistant R10 stainless steel
Fiber element length (diameter) 50 cm cut not allowed 50 cm cut not allowed 1 m free-cut (ø1.3×2) 1 m free-cut (ø1.3×2)
30cm spiral
Ambient temperature -40 to +70°C -40 to +50°C -40 to +50°C -40 to +50°C
Detection setting Coaxial
Shape Threaded Hexagonal Threaded
Size M3
Weight Approx. 4g Approx. 4g Approx. 7g Approx. 6g Approx. 6g


Model SP-136FA SP-167 SP-167Z SP-167TZ SP-136TG
Detecting distance (mm) 0~550 0~1100 0~770 0~640 0~400
Smallest detectable object ø0.005 gold wire
Bend radius (mm) R25 R2 bend-resistant R10 stainless steel
Fiber element length (diameter)
Ambient temperature 		1 m free-cut (ø1.3×2)
-40 to +70°C 		2 m free-cut (ø1.3×2)
-40 to +70°C 		2 m free-cut (ø1.3×2)
-40 to +50°C 		2 m free-cut (ø1.3×2)
-40 to +50°C 		1 m cut not allowed
-40 to +50°C
Detection setting Coaxial Parallel Coaxial
Shape Threaded Hexagonal
Size M3 M4 M6
Weight Approx. 6g Approx. 10g Approx. 10g Approx. 10g Approx. 32g


Model SP-126 SP-17F SP-162 SP-168 SP-168V SP-168TZ
Detecting distance (mm) 0~720 0~1100 0~1300 0~900
Smallest detectable object ø0.005 gold wire
Bend radius (mm) R25 R2 bend-resistant R0.5 bend-resistant
Fiber element length (diameter) 2 m free-cut (ø2.2×2) 2 m free-cut (ø2.2×2)
Ambient temperature -40 to +70°C -40 to +50°C
Detection setting Coaxial Parallel
Shape Threaded Hexagonal
Size M6
Weight Approx. 18g Approx. 21g Approx. 21g Approx. 21g Approx. 25g Approx. 32g


Model SP-R168TZ SP-R168TG SP-R168 SP-R17F SP-R168G
Detecting distance (mm)*¹ 0~710 0~900 0~1100 0~900
Minimum bend radius(mm) R2 bend-resistant R10 stainless steel R2 bend-resistant R25 R10 stainless steel
Fiber element length (diameter)
Ambient temperature 		2 m free-cut (ø2.2×2)
-40 to +60°C 		1 m cut not allowed
-40 to +60°C 		2 m free-cut (ø2.2×2)
-40 to +60°C 		1 m cut not allowed
-40 to +60°C
Shape Hexagonal Threaded
Size M4
Weight Approx. 25g Approx. 32g Approx. 21g Approx. 29g

*1 When using the FS-N40 series.


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Cylindrical Type

Thrubeam type

Model SP-259 SP-259U SP-260 SP-260U
Detecting distance (mm) 0~380 0~590 0~1200 0~590
Smallest detectable object ø0.005
Optical axis diameter ø0.265 ø0.5 ø0.7 ø0.5
Bend radius (mm) R10 R2 bend-resistant and high-flex R4 high-flex R2 bend-resistant and high-flex
Fiber element length (diameter)
Ambient temperature 		50 cm cut not allowed
-40 to +50°C 		1 m free-cut (ø1.0)
-40 to +50°C 		1 m free-cut (ø1.0)
-40 to +70°C 		1 m free-cut (ø1.0)
-40 to +50°C
Size ø1 .0 ø1 .5
Weight Approx. 8g Approx. 4g Approx. 3g Approx. 4g



Model SP-256 SP-257 SP-26F SP-26FZ
Detecting distance (mm) 0~45 0~3600
Smallest detectable object ø0.005
Optical axis diameter ø0.125 ø1 ø1.13
Bend radius (mm) R10 R25 R2 bend-resistant
Fiber element length (diameter)
Ambient temperature 		50 cm cut not allowed
-40 to +70°C 		50 cm cut not allowed
-40 to +70°C
The casing is not bendable 		2m free-cut (ø2.2)
-40 to +70°C 		2 m free-cut (ø2.2)
-40 to +50°C
Size ø2.5 ø3
Weight Approx. 3g Approx. 3g Approx. 19g Approx. 19g



Reflective type

Model SP-147 SP-150X SP-150U SP-123X SP-15F
Detecting distance (mm) 0~27 0~150 0~140 0~72 0~1100
Smallest detectable object ø0.005 gold wire
Bend radius (mm) R10 R4 high-flex R2 bend-resistant and high-flex R25
Fiber element length (diameter)
Ambient temperature 		1 m cut not allowed
-40 to +70°C 		1 m free-cut (ø1.0×2)
-40 to +50°C 		50 cm cut not allowed
-40 to +70°C 		2 m free-cut (ø1.3×2)
-40 to +70°C
Size ø1.5 ø2 ø2.5 ø3
Weight Approx. 2g Approx. 3g Approx. 4g Approx. 4g Approx. 8g


Model SP-15FZ SP-124X SP-146X SP-149
Detecting distance (mm) 0~770 0~830 0~68 0~290
Smallest detectable object ø0.005 gold wire
Bend radius (mm) R2 bend-resistant R25 R4 R4 high-flex
Fiber element length (diameter)
Ambient temperature 		2 m free-cut (ø1.3×2)
-40 to +50°C 		50 cm cut not allowed
-40 to +70°C 		2 m free-cut (ø1.0×2)
-40 to +70°C
Size ø3
Weight Approx. 8g Approx. 4g Approx. 4g Approx. 7g

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Integrated Mounting Bracket Type

Thrubeam type

Model SP-L452Z SP-L453Z SP-L454Z SP-L451Z SP-L455Z
Detecting distance (mm) 0~2200 0~3600 0~1900
Smallest detectable object ø0.005 ø0.2 ø0.005
Optical axis diameter ø1.13 ø3.5 ø1.13
Bend radius (mm) R2 bend-resistant
Fiber element length (diameter)
Ambient temperature 		2 m free-cut (ø2.2)
-40 to +50°C
Detecting direction Top Top (built-in lens) Side
Weight Approx. 30g


Reflective type
Model SP-L342Z
Detecting distance (mm) 0~760
Smallest detectable object ø0.005
Bend radius (mm) R2 bend-resistant
Fiber element length (diameter)
Ambient temperature 		2 m free-cut (ø2.2)
-40 to +50°C
Optical axis height 10
Detecting direction Top
Weight Approx. 25g

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Narrow Beam / High Power Type

Thrubeam type

Model SP-219 SP-217 SP-217Z SP-219M SP-251
Detecting distance (mm) 0~3600
Optical axis diameter ∅2.5 ∅1.0 ∅2.8
Bend radius (mm) R10 R2 R10 R2 bend-resistant
Fiber element length (diameter) 2 m free-cut (ø1.0) 2 m free-cut (ø1.0) 2 m free-cut (ø1.0) 2 m free-cut (ø1.0)
Ambient temperature -20 to +70°C -40 to +50°C -20 to +70°C -20 to +50°C
Detecting direction Side
Opening angle Approx. 2° Approx. 6° Approx. 3° Approx. 6°
Weight Approx. 8g Approx. 8g Approx. 8g Approx. 6g Approx. 8g


Reflective type

Model SP-141 SP-141G
Detecting distance (mm) 0~2300 0~2700
Smallest detectable object ø0.3 copper wire (vertical)
Bend radius (mm) R2 bend-resistant R10 stainless steel
Fiber element length (diameter)
Ambient temperature 		2 m free-cut (ø2.2)
-40 to +50°C 		1 m cut not allowed
-40 to +50°C
Aperture angle Approx. 8°
Detecting direction Top
Weight Approx. 23g Approx. 50g

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Plate Bracket Type

Thrubeam type

Model SP-452TZ SP-453TZ SP-454TZ SP-455TZ SP-457TZ SP-458TZ SP-458TE
Detecting distance (mm) 0~810 0~2900 0~500 0~2900 0~750 0~740 0~630
Smallest detectable object ∅0.005
Optical axis diameter ∅0.5 ∅1 ∅0.5 ∅1 ∅1.13 ∅0.5 ∅0.7
Bend radius (mm) R2 bend-resistant
Fiber element length (diameter)
Ambient temperature 		1 m free-cut (ø1.0)
-40 to +50°C 		2 m free-cut (ø1.3)
-40 to +50°C 		1 m free-cut (ø1.0)
-40 to +50°C 		2m free-cut (ø2.2)
-40 to +50°C 		2 m free-cut (ø2.2)
-40 to +50°C 		1 m free-cut (ø1.0)
-40 to +50°C 		1 m free-cut (ø1.0)
-40 to +70°C
Detecting direction Top Flat-plate Sides
Weight Approx. 5g Approx. 15g Approx. 10g Approx. 25g Approx. 20g Approx. 5g Approx. 5g



Reflective type

Model SP-342TZ SP-343TZ SP-344TZ SP-345TZ SP-348TZ
Detecting distance (mm) 0~120 0~500 0~120 0~160
Smallest detectable object ø0.005 gold wire
Bend radius (mm) R2 bend-resistant
Fiber element length (diameter)
Ambient temperature 		1 m free-cut (ø1.0×2)
-40 to +50°C 		2 m free-cut (ø2.2×2)
-40 to +50°C 		1 m free-cut (ø1.0×2)
-40 to +50°C
Detecting direction Flat Top Sides
Weight Approx. 5g Approx. 24g Approx. 22g Approx. 3g Approx. 4g

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Casing Type

Thrubeam type

Model SP-233 SP-235 SP-274 SP-276F SP-257
Detecting distance (mm) 0~520 0~1600 0~3600 0~690 0~45
Smallest detectable object ∅0.005
Optical axis diameter ∅0.6 ∅1 ∅0.5 ∅0.125
Bend radius (mm) R25 R10
Fiber element length (diameter)
Ambient temperature 		1 m free-cut (ø1.3)
-40 to +70°C 		2 m free-cut (ø2.2)
-40 to +70°C 		1 m free-cut (ø1.0)
-40 to +70°C 		50 cm cut not allowed
-40 to +70°C
Detecting direction Top Side
Weight Approx. 5g Approx. 17g Approx. 24g Approx. 10g Approx. 3g



Reflective type

Model SP-123X SP-132 SP-134 SP-144 SP-146X
Detecting distance (mm) 0~72 0~180 0~320 0~330 0~68
Smallest detectable object ø0.005 gold wire
Bend radius (mm) R25 R10 R25 R4
Fiber element length (diameter)
Ambient temperature 		50 cm cut not allowed
-40 to +70°C 		2 m free-cut (ø1.0×2)
-40 to +70°C 		1 m free-cut (ø2.2×2)
-40 to +70°C 		2 m free-cut (ø1.3×2)
-40 to +70°C 		50 cm cut not allowed
-40 to +70°C
Detecting direction Coaxial narrow beam 10° Side Top
Weight Approx. 4g Approx. 5g Approx. 10g Approx. 8g Approx. 4g



Model SP-147 SP-277F SP-164 SP-164T SP-164Z SP-166X
Detecting distance (mm) 0~27 0~390 0~330 0~290 0~68
Smallest detectable object ø0.005 gold wire
Bend radius (mm) R10 R25 R2 bend-resistant R4
Fiber element length (diameter)
Ambient temperature 		1 m cut not allowed
-40 to +70°C 		1 m free-cut (ø1.0)
-40 to +70°C 		2 m free-cut (ø1.3×2)
-40 to +70°C 		2 m free-cut (ø1.3×2)
-40 to +50°C 		50 cm cut not allowed
-40 to +70°C
Detecting direction Top
Weight Approx. 2g Approx. 10g Approx. 10g Approx. 10g Approx. 10g Approx. 5g


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High Flex Type

Thrubeam  type

Model SP-260 SP-280 SP-259U SP-260U SP-280U SP-271U SP-271TU
Detecting distance (mm) 0~1200 0~590 0~1800 0~3600
Smallest detectable object ø0.005 -
Optical axis diameter ∅0.7 ∅0.5 ∅2.3
Bend radius (mm) R4 high-flex R2 bend-resistant and high-flex R1 bend-resistant
Fiber element length (diameter)
Ambient temperature 		1 m free-cut (ø1.0)
-40 to +70°C 		1 m free-cut (ø1.0)
-40 to +50°C 		2 m free-cut (ø1.0)
-40 to +50°C
Size ∅1.5 M3 ∅1.0 ∅1.5 M3 M4
Weight Approx. 3g Approx. 6g Approx. 4g Approx. 4g Approx. 5g Approx. 5g Approx. 5g



Reflective  type

Model SP-149 SP-169 SP-149U SP-150U SP-170U SP-150X SP-170X
Detecting distance (mm) 0~290 0~140 0~150
Smallest detectable object ø0.005 gold wire
Bend radius (mm) R4 high-flex R2 bend-resistant and high-flex R4 high-flex
Fiber element length (diameter)
Ambient temperature 		2 m free-cut (ø1.0×2)
-40 to +70°C 		1 m free-cut (ø1.0×2)
-40 to +50°C 		1 m cut not allowed
-40 to +70°C
Size ø3 M4 ø3 ø2 M3 ø1.5 M3
Weight Approx. 7g Approx. 8g Approx. 4g Approx. 4g Approx. 4g Approx. 3g Approx. 3g

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Oil/Chemical Resistant Type

Thrubeam type

Model SP-893 SP-899 SP-897 SP-897T SP-881TZ SP-881MTZ
Detecting distance (mm)*¹ 0~3600
Optical axis diameter (mm) ∅3.7 ∅6 ∅2.8 ∅3.7 ∅2.3 ∅4.3
Minimum bend radius (mm) R40 R25*² R2 bend-resistant
Fiber element length (diameter)
Ambient temperature 		2 m free-cut (ø2.2)
-40 to +70°C 		2 m free-cut (ø2.2)
0 to +60°C 		2m free-cut (ø2.2)
-20 to +100°C
Beam emission direction Top Sides
Weight Approx. 71g Approx. 70g Approx. 71g Approx. 35g Approx. 30g Approx. 55g

*1 When using the SP series, the cable length is 2m, so “3600mm” is the maximum value.
*2 The optical fiber must not be bent within 25mm of the end of the fixing screw cap.
*3 For continuous use, use within the range of -40 to +130°C.

*4 The optical fiber is 2m long on one side, so the length is 4000mm.



Reflective type

Model SP-792 SP-798P SP-798S
Detecting distance (mm)*¹ 0~310 0~20
Standard object to be detected - 200×200mm
t=0.7mm
glass substrate
Minimum bend radius (mm) R40
Fiber element length (diameter)
Ambient temperature 		2 m free-cut (ø1.3×2)
-40 to +70°C 		2 m free-cut (ø1.3×2)
-40 to +60°C 		2 m free-cut (ø1.3×2)
-40 to +85°C
Beam emission direction Top
Weight Approx. 32g Approx. 75g Approx. 90g
*1 When using the SP series. Standard target object: White matte paper (reflective type only).

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Heat Resistant Type

Thrubeam type

Model SP-687Z SP-687A SP-687H SP-689 SP-685C SP-685TZC SP-685TZC-6
Detecting distance (mm) 0~3600 0~2700 0~1800
Smallest detectable object ø0.005
Optical axis diameter ∅1 ∅1.5 ∅1
Bend radius (mm) R5 bend-resistant R25 R20 R35 R25
Fiber element length (diameter)
Ambient temperature 		2 m free-cut (ø2.2)
-40 to +100°C 		2 m free-cut (ø2.2)
-40 to +105°C 		2 m free-cut (ø2.2)
-40 to +150°C 		2 m free-cut (ø2.2)
-60 to +180°C 		2 m cut not allowed
-40 to +300°C
Heat-resistant temperature 100℃ 105℃ 150℃ 180℃ 300℃
Weight Approx. 25g Approx. 22g Approx. 35g Approx. 36g Approx. 66g Approx. 43g Approx. 43g



Reflective type

Model SP-582C SP-583C SP-584C SP-584TZC SP-584TZC-6 SP-139LK SP-139K
Detecting distance (mm) 0~650 0~770 0~86 0~150
Smallest detectable object ø0.005 gold wire
Bend radius (mm) R25
Fiber element length (diameter)
Ambient temperature 		1 m cut not allowed
-30 to +350°C 		1 m cut not allowed
-40 to +350°C 		2 m cut not allowed
-40 to +250°C 		1 m cut not allowed
-40 to +250°C
Heat-resistant temperature 350℃ 300℃ 250℃
Weight Approx. 24g Approx. 29g Approx. 23g Approx. 22g Approx. 22g Approx. 70g Approx. 45g



Model SP-586A SP-588K SP-586H SP-586Z SP-588 SP-139H
Detecting distance (mm) 0~1100 0~790 0~720 0~740 0~860 0~150
Smallest detectable object ø0.005 gold wire
Bend radius (mm) R25 R8 R20 R5 bend-resistant R35
Fiber element length (diameter)
Ambient temperature 		2 m free-cut (ø2.2×2)
-40 to +105°C 		1 m cut not allowed
-40 to +200°C 		2 m free-cut (ø2.2×2)
-40 to +150°C 		2 m free-cut (ø2.2×2)
-40 to +100°C 		2 m free-cut (ø2.2×2)
-60 to +180°C 		2 m free-cut (ø2.2×2)
-40 to +180°C
Heat-resistant temperature 105℃ 200℃ 150℃ 100℃ 180℃
Weight Approx. 21g Approx. 15g Approx. 35g Approx. 25g Approx. 33g Approx. 45g


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Area Type

Thrubeam type

Model SP-A223 SP-E212 SP-E241 SP-A206 SP-A211 SP-A241 SP-A2100
Detecting distance (mm) 0~3600
Optical axis width 10 11 40 5 10 40 100
Optical axis diameter 10×3(with 1.0mm wide seam allowance) 11×2 40×3 Approx. 6×0.3 Approx. 11×0.3 Approx. 40×0.25 Approx. 100×0.25
Bend radius (mm) R2 bend-resistant R4 R10
Fiber element length (diameter)
Ambient temperature 		2m free-cut (ø2.2)
-40 to +50°C 		2 m free-cut (ø2.2)
-40 to +70°C 		2 m free-cut
(except spiral section 50 mm)
-20 to +50°C 		2 m free-cut
(except spiral section 50 mm)
-20 to +50°C
Detecting method Area Array
Weight Approx. 23g Approx. 20g Approx. 30g Approx. 20g Approx. 20g Approx. 70g Approx. 110g



Reflective type

Model SP-112 SP-A106D SP-A111D
Detecting distance (mm) 0~200 0~1200
Smallest detectable object ø0.1 gold wire
Bend radius (mm) R25 R4
Fiber element length (diameter)
Ambient temperature 		2 m free-cut (ø2.2)
-40 to +70°C 		2 m free-cut (ø2.2×2)
-40 to +70°C 		2 m free-cut
-40 to +70°C
Spot width 15 (distance is 15) 10 (distance is 4) 15 (distance is 4)
Detecting method Area Array
Weight Approx. 19g Approx. 20g Approx. 20g

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Focus Lens

Thrubeam type

Model P-22、P-41 P-24 P-25
Type Long detecting distance type Ultra-long detecting distance type Side view type with mounting holes
Detecting distance (mm) 0~3600 0~1800 0~3600 0~1800 0~3600 0~1800
Applicable fiber optic SP-278TZ/278V/278/285C/289K
SP-28F/287A
SP-287Z
SP-279 		SP-278G/278MG/278TG/278MTG SP-278TZ/278V/278
SP-28F
SP-279 		SP-278G/278MG/278TG/278MTG SP-278V/278
SP-28F/288A
SP-287Z
SP-279 		SP-278G
Ambient temperature -40 to +300°C -40 to +70°C -40 to +105°C
Aperture angle Approx. 15° Approx. 8° -
Weight Approx. 2g Approx. 1g Approx. 10g



Reflective type


Small spot type (Lens + Fibre unit)

Lens model P-12HA、P-33HA、P-31HA
Fibre unit model SP-122X SP-125X SP-136FA SP-136FG SP-136FZ SP-136TG SP-136TZ
Bend radius (mm) R25 R10 R25 R10 stainless steel R2 bend-resistant R10 stainless steel R2 bend-resistant
Spot diameter Approx. ø0.2 Approx. ø0.1 Approx. ø0.4
Ambient temperature -30 to +70°C (P-12HA、P-33H) , -40 TO +70℃ (P-31HA)
Focus distance 7±2
Type Small spot


Small spot type (Lens + Fibre unit)

Lens model P-14HA
Fibre unit model SP-136FA SP-136FG SP-136FZ SP-136TG SP-136TZ
Bend radius (mm) R25 R10 stainless steel R2 bend-resistant R10 stainless steel R2 bend-resistant
Spot diameter Approx. ø0.5
Ambient temperature -30 to +70°C
Focus distance 15±2
Type Small spot


Small spot type (Lens + Fibre unit)

Lens model P-16HA
Fibre unit model SP-122X SP-136FA SP-136FG SP-136FZ SP-136TZ
Bend radius (mm) R25 R10 stainless steel R2 bend-resistant
Spot diameter Approx. ø1.0 Approx. ø2.0
Ambient temperature -40 to +70°C
Focus distance 35±3
Type Small spot


Side-view adjustable light point (Lens + Fibre unit)

Lens model P-15HA
Fibre unit model SP-136FA SP-136FG SP-136FZ
Bend radius (mm) R25 R10 stainless steel R2 bend-resistant
Spot diameter ø0.5~3
Ambient temperature -30 to +70°C
Focus distance 8~30
Type Side-view adjustable light point


Parallel beam type (Lens + Fibre unit)

Lens model P-13HA
Fibre unit model SP-136FA SP-136FG SP-136FZ SP-136TG SP-136TZ
Detecting distance (mm) 0~65 0~45 0~40
Bend radius (mm) R25 R10 stainless steel R2 bend-resistant R10 stainless steel R2 bend-resistant
Ambient temperature -30 to +70°C
Spot diameter Approx. ø4 spot diameter (within detecting distance 0~20)
Type Parallel beam type


High temperature resistant ultra-long distance lens

Model P-61S-3
Detecting distance (mm) 0~3600 0~1600
Applicable fiber optic SP-278TZ/278V/278/279
SP-689/687Z/687A/687H
SP-28F 		SP-685C/SP-584C
Ambient temperature -60 to +350°C
Type High temperature resistant ultra-long distance lens
Weight Approx. 20g


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Small Spot Type

Reflective type

Model SP-111 SP-121
Spot diameter ø0.9~3.5 Approx. ø0.1
Bend radius (mm) R25
Fiber element length (diameter)
Ambient temperature 		2 m free-cut (ø1.3×2)
-40 to +70°C 		50 cm cut not allowed
-40 to +70°C
Focus distance 10~30 5
Type Adjustable light spot Small spot
Weight Approx. 5g Approx. 2g


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Definite-reflective Type

Reflective type

Model SP-138 SP-139V SP-139 SP-139L SP-139S SP-139R SP-141S
Detecting distance (mm) 3 centers of detecting distance 0~4 6 centers 0~89 0~25 0~14 0~150
Smallest detectable object ø0.005 gold wire ø0.08 copper wire -
Bend radius (mm) R10 R25 R5 R25
Fiber element length (diameter)
Ambient temperature 		2 m free-cut (ø1.0×2)
-40 to +70°C 		2 m free-cut (ø2.2×2)
-40 to +60°C 		2 m free-cut (ø2.2×2)
-40 to +70°C
Detecting direction Side Flat Top
Weight Approx. 6g Approx. 5g Approx. 5g Approx. 20g Approx. 20g Approx. 20g Approx. 25g


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Liquid Level Type

Reflective type

Model SP-196 SP-196Z SP-196HA SP-194 SP-194Z
Accessories End tape × 2, non-slip rubber × 2, spacer × 2, screw × 2, nut × 2 -
Bend radius (mm) R10 R2 bend-resistant R10 R25 R0.5 bend-resistant
Fiber element length (diameter)
Ambient temperature 		2 m free-cut (ø1.0×2)
-40 to +70°C 		2 m free-cut (ø1.0×2)
-40 to +50°C 		2 m free-cut (ø1.0×2)
-40 to +105°C 		2 m free-cut (ø1.3×2)
-40 to +70°C 		2 m free-cut (ø1.3×2)
-40 to +50°C
Beam axis 1 -
Transparent pipe diameter ø4~ø26 -
Detecting method Pipe mounting type Infiltrative type
Weight Approx. 7g Approx. 7g Approx. 7g Approx. 78g Approx. 78g


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