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GRL18S-P235W
Photoelectric Sensor, GR18S Series, Retro Reflective, Dual Lens, Radial, 7.2 m, PNP, 10 to 30 Vdc
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: SICK
- Product type:
- Sensing Range Max:7.2m; Sensing Method:Retroreflective; Sensor Output:PNP; Product Range:GR18S Series; Connection Method:M12 Connector; Supply Voltage DC Min:10VDC; Supply Voltage DC Max:
- SVHC: No SVHC (21-Jan-2025)
- Product Range: GR18 Series
- Sensing Method: Retroreflective
- Connection Method: M12 Connector
- Sensing Range Max: 7.2m
- Sensor Output Type: PNP
- Supply Voltage Max: 30VDC
- Supply Voltage Min: 10VDC
- Sensing Distance Max: 7.2m
- Supply Voltage DC Max: 30VDC
- Supply Voltage DC Min: 10VDC
| Delivery and price | |
|---|---|
| Units per pack | 50 |
| Price | 58.13 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
GRL18S-P235W GR18S
**PHOTOELECTRIC SENSORS**
**GRL18S-P235W | GR18S** PHOTOELECTRIC SENSORS
## Ordering information
|**Type**|**Part no.**|
|---|---|
|GRL18S-P235W|1064162|
|Other models and accessories<br> www.sick.com/GR18S||
Illustration may differ
## Detailed technical data
## Features
|**Sensor/detection principle**|Photoelectric retro-reflective sensor, Dual lens|
|---|---|
|**Housing design (light emission)**|Cylindrical, angled, fully flush|
|**Thread diameter (housing)**|M18 x 1|
|**Optical axis**|Radial, fully flush|
|**Sensing range max.**|0.03 m ... 7.2 m1)|
|**Sensing range**|0.06 m ... 6 m1)|
|**Type of light**|Visible red light|
|**Light source**|PinPoint LED2)|
|**Light spot size (distance)**|Ø 175 mm (7 m)|
|**Wave length**|650 nm|
|**Adjustment**|None|
- 1) Reflector PL80A.
- 2) Average service life: 100,000 h at TU = +25 °C.
## Mechanics/electronics
|**Supply voltage**|10 V DC ... 30 V DC1)|
|---|---|
|**Ripple**|± 5 Vpp 2)|
|**Power consumption**|≤ 30 mA|
- 1) Limit values when operated in short-circuit protected network: max. 8 A.
- 2) May not exceed or fall below Uv tolerances.
- 3) At Uv > 24 V or ambient temperature > 49 °C, IA max. = 50 mA. 4) Signal transit time with resistive load.
- 5) With light/dark ratio 1:1.
- 6) A = VS connections reverse-polarity protected.
- 7) B = inputs and output reverse-polarity protected.
- 8) D = outputs overcurrent and short-circuit protected.
- 9) At Uv <=24V and IA<50mA.
**Online data sheet | 2017-07-04 23:40:09 Subject to change without notice**
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**PHOTOELECTRIC SENSORS | SICK**
**GRL18S-P235W | GR18S** PHOTOELECTRIC SENSORS
|**Output type**|PNP|
|---|---|
|**Switching mode**|Light switching|
|**Signal voltage PNP HIGH/LOW**|VS- (≤ 3 V) / approx. 0 V|
|**Output current Imax.**|100 mA3)|
|**Response time**|< 500 µs4)|
|**Switching frequency**|± 1,000 Hz5)|
|**Connection type**|Connector M12, 3-pin|
|**Circuit protection**|A6)<br>B7)<br>D8)|
|**Protection class**|III|
|**Polarisation filter**|✔|
|**Housing material**|Nickel-plated brass and ABS|
|**Optics material**|Plastic, PMMA|
|**Enclosure rating**|IP67|
|**Items supplied**|Fastening nuts (2 x), Reflector P250|
|**EMC**|EN 60947-5-2|
|**Ambient operating temperature**|–25 °C ... +55 °C9)|
|**Ambient storage temperature**|–40 °C ... +70 °C|
|**UL File No.**|NRKH.E348498 & NRKH7.E348498|
1) Limit values when operated in short-circuit protected network: max. 8 A.
- 2) May not exceed or fall below Uv tolerances.
- 3) At Uv > 24 V or ambient temperature > 49 °C, IA max. = 50 mA.
4) Signal transit time with resistive load. 5) With light/dark ratio 1:1. 6) A = VS connections reverse-polarity protected.
7) B = inputs and output reverse-polarity protected.
8) D = outputs overcurrent and short-circuit protected. 9) At Uv <=24V and IA<50mA.
## Classifications
|**ECl@ss 5.0**|27270902|
|---|---|
|**ECl@ss 5.1.4**|27270902|
|**ECl@ss 6.0**|27270902|
|**ECl@ss 6.2**|27270902|
|**ECl@ss 7.0**|27270902|
|**ECl@ss 8.0**|27270902|
|**ECl@ss 8.1**|27270902|
|**ECl@ss 9.0**|27270902|
|**ETIM 5.0**|EC002717|
|**ETIM 6.0**|EC002717|
|**UNSPSC 16.0901**|39121528|
**2017-07-04 23:40:09 | Online data sheet Subject to change without notice**
**PHOTOELECTRIC SENSORS | SICK**
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**GRL18S-P235W | GR18S** PHOTOELECTRIC SENSORS
## Connection diagram
## Cd-045
brn 1 + (L+) ~~—~~ blu 3 **-** (M) blk 4 Q ~~;~~
## Characteristic curve
## GRL18S
**==> picture [241 x 231] intentionally omitted <==**
**----- Start of picture text -----**<br>
Operating reserve<br>100<br>=35= 55 5=========<br>a<br>Pot<br>See eee<br>10<br>ATS<br>A=<br>PT INN TT TD AN<br>{PRA ANE<br>FWA QQ<br>1 late<br>Net eRe<br>0 1 2 3 4 5 6 7 8<br>(3.28) (6.56) (9.84) (13.12) (16.40) (19.69) (22.97) (26.25)<br>Distance in m (feet)<br>**----- End of picture text -----**<br>
- ① Reflector PL80A
- ② Reflector PL40A
- ③ Reflector PL20A
- ④ Reflector P250
- ⑤ Reflector PL22
- ⑥ Reflective tape REF-Plus 3436
**Online data sheet | 2017-07-04 23:40:09 Subject to change without notice**
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**PHOTOELECTRIC SENSORS | SICK**
**GRL18S-P235W | GR18S** PHOTOELECTRIC SENSORS
## Light spot size
## GRL18S
**==> picture [109 x 118] intentionally omitted <==**
**----- Start of picture text -----**<br>
Diameter in mm (inch)<br>Ø 25<br>Ø 8 Ø 75 Ø 175<br>(0.98)<br>(0.31) (2.95) (6.89)<br>0.2 1 3 7<br>(0.66)(3.28) (9.84) (22.97)<br>Distance in m (feet)<br>Sensor<br>**----- End of picture text -----**<br>
## Sensing range diagram
GRL18S
**==> picture [202 x 122] intentionally omitted <==**
**----- Start of picture text -----**<br>
� 0.03/0.06 6.0 7.2<br>� 0.03/0.06 5.2 6.2<br>� 0.03/0.06 2.9 3.8<br>� 0.03/0.06 5.4 6.4<br>� 0.03/0.06 1.9/2.2<br>� 0.06/0.08 1.6/2.0<br>0 1 2 3 4 5 6 7 8<br>(3.28) (6.56) (9.84) (13.12) (16.40) (19.69) (22.97) (26.25)<br>Distance in m (feet)<br>**----- End of picture text -----**<br>
Sensing range Sensing range max.
- ① Reflector PL80A
- ② Reflector PL40A
- ③ Reflector PL20A
- ④ Reflector P250
- ⑤ Reflector PL22
- ⑥ Reflective tape REF-Plus 3436
**2017-07-04 23:40:09 | Online data sheet Subject to change without notice**
**PHOTOELECTRIC SENSORS | SICK**
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**GRL18S-P235W | GR18S** PHOTOELECTRIC SENSORS
## Dimensional drawing (Dimensions in mm (inch))
GR18S, metal, connector, angled, fully flush
**==> picture [219 x 211] intentionally omitted <==**
**----- Start of picture text -----**<br>
Ø 23 (0.91)<br>2 13.5<br>(0.53)<br>1 x M18 3<br>4<br>aa me | >~ \<br>Oia<br>6<br>T Eaene<br>5<br>1 24 =<br>1 x M12<br>① Connector M12, 3-pin<br>② Threaded mounting hole M18 x 1<br>③ LED indicator yellow<br>④ LED indicator green<br>(0.09)<br>(0.11)<br>2.2<br>(0.63) 2.8<br>17.1 (0.67)<br>16 9.3<br>(0.37)<br>6)<br>.1<br>(0<br> (1.44)<br>4<br>36.6<br>11.5 (0.45)<br>**----- End of picture text -----**<br>
- ⑤ Dummy plug
⑥ Fastening nut; 24 mm hex, metal
## Recommended accessories
Other models and accessories www.sick.com/GR18S
||**Brief description**|**Type**|**Part no.**|
|---|---|---|---|
|Universal bar clamp systems||||
||Plate N06 for universal clamp bracket, M18, Zinc plated steel (sheet), Zinc die cast<br>(clamping bracket), Universal clamp (5322626), mounting hardware|BEF-KHS-N06|2051612|
|Mounting brackets and plates||||
||Mounting plate for M18 sensors, steel, zinc coated, without mounting hardware|BEF-WG-M18|5321870|
|<=|Mounting bracket for M18 sensors, steel, zinc coated, without mounting hardware|BEF-WN-M18|5308446|
|Other mounting accessories||||
||Mounting tool for "fully flush" variants|BEF-TO-GR18S|4072132|
|Terminal and alignment brackets||||
||Mounting bracket with ball-and-socket, Plastic, mounting hardware included|BEF-WN-M18-ST02|5312973|
**Online data sheet | 2017-07-04 23:40:09 Subject to change without notice**
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**PHOTOELECTRIC SENSORS | SICK**
**GRL18S-P235W | GR18S** PHOTOELECTRIC SENSORS
||**Brief description**|**Type**|**Part no.**|
|---|---|---|---|
||Clamping block for round sensors M18, without fixed stop, plastic (PA12), glass-fiber re-<br>inforced, mounting hardware included|BEF-KH-M18|2051481|
||Clamping block for round sensors M18, with fixed stop, plastic (PA12), glass-fiber rein-<br>forced, mounting hardware included|BEF-KHF-M18|2051482|
||Integrated adapter, Plastic (PA12)|BEF-WN-MH15-1|4039533|
|~~”~~|Mounting ring, Stainless steel, without mounting hardware|BEF-WN-MH15-2V|4053358|
|Plug connectors and cables||||
||Head A: female connector, M12, 4-pin, straight<br>Head B: cable<br>Cable: PVC, unshielded, 2 m|DOL-1204-G02M|6009382|
||Head A: female connector, M12, 4-pin, straight<br>Head B: cable<br>Cable: PVC, unshielded, 5 m|DOL-1204-G05M|6009866|
||Head A: female connector, M12, 4-pin, angled<br>Head B: cable<br>Cable: PVC, unshielded, 2 m|DOL-1204-W02M|6009383|
||Head A: female connector, M12, 4-pin, angled<br>Head B: cable<br>Cable: PVC, unshielded, 5 m|DOL-1204-W05M|6009867|
|v|Head A: female connector, M12, 4-pin, straight<br>Head B: -<br>Cable: unshielded|DOS-1204-G|6007302|
|s|Head A: female connector, M12, 4-pin, angled<br>Head B: -<br>Cable: unshielded|DOS-1204-W|6007303|
|®,|Head A: male connector, M12, 4-pin, straight<br>Head B: -<br>Cable: unshielded|STE-1204-G|6009932|
||Head A: male connector, M12, 4-pin, angled<br>Head B: -<br>Cable: unshielded|STE-1204-W|6022084|
|Reflectors||||
||Rectangular, screw connection, 47 mm x 47 mm, PMMA/ABS, Screw-on, 2 hole mount-<br>ing|P250|5304812|
||Rectangular, screw connection, 38 mm x 15 mm, PMMA/ABS, Screw-on, 2 hole mount-<br>ing|PL20A|1012719|
||Rectangular, screw connection, 56 mm x 28 mm, PMMA/ABS, Screw-on, 2 hole mount-<br>ing|PL30A|1002314|
||Rectangular, screw connection, 37 mm x 56 mm, PMMA/ABS, Screw-on, 2 hole mount-<br>ing|PL40A|1012720|
||Rectangular, screw connection, 80 mm x 80 mm, PMMA/ABS, Screw-on, 2 hole mount-<br>ing|PL80A|1003865|
**2017-07-04 23:40:09 | Online data sheet Subject to change without notice**
**PHOTOELECTRIC SENSORS | SICK**
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**GRL18S-P235W | GR18S** PHOTOELECTRIC SENSORS
|Self-adhesive|REF-IRF-56|5314244|
|---|---|---|
**Online data sheet | 2017-07-04 23:40:09 Subject to change without notice**
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**PHOTOELECTRIC SENSORS | SICK**
## SICK At A GlAnCe
SICK is one of the leading manufacturers of intelligent sensors and sensor solutions for industrial applications. A unique range of products and services creates the perfect basis for controlling processes securely and efficiently, protecting individuals from accidents and preventing damage to the environment.
We have extensive experience in a wide range of industries and understand their processes and requirements. With intelligent sensors, we can deliver exactly what our customers need. In application centers in Europe, Asia and North America, system solutions are tested and optimized in accordance with customer specifications. All this makes us a reliable supplier and development partner.
Comprehensive services complete our offering: SICK lifetime Services provide support throughout the machine life cycle and ensure safety and productivity.
For us, that is “Sensor Intelligence.”
## WOrldWIde preSenCe:
Contacts and other locations www.sick.com
SICK AG | Waldkirch | Germany | www.sick.com
Updated at April 23, 2026
SICK is a globally recognized leader in factory and logistics automation technology, renowned for engineering advanced sensors and developing innovative digital services. Driven by a commitment to high precision, reliability, and versatility, the company provides the foundational components required to transform traditional manufacturing processes into intelligent, self-optimizing systems that adapt autonomously using real-time data. Our comprehensive selection of SICK products is heavily focused on their industry-leading sensing technologies. We offer a robust portfolio of light sensors designed to deliver exceptional accuracy and performance in demanding industrial environments. Furthermore, our extensive range features high-quality proximity sensors and switches, providing the dependable object detection essential for automated production, packaging, and material handling applications. To ensure seamless integration of these advanced sensor networks, our offering is complemented by specialized connectivity solutions such as SICK fiber optic lead assemblies. From consumer goods and electronics to logistics and automotive manufacturing, SICK delivers the cutting-edge automation technology necessary to maximize operational efficiency and maintain continuous, reliable performance across diverse industrial sectors.
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