GRTB18S-P1131V

Photoelectric Sensor, 100mm, 650nm Red LED, Background Suppression/Proximity, Digital-PNP LO/DO

⚠️ 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:
SVHC: No SVHC (21-Jan-2025)
IP Rating: IP67, IP68, IP69K
Output Type: Digital - PNP LO / DO
Sensor Type: Photoelectric Sensor
Light Source: 650nm Red LED
Product Range: GR18 Series
Qualification: -
Sensing Method: Background Suppression, Proximity
Connection Method: 2m 4 Wire Cable
Supply Voltage Max: 30VDC
Supply Voltage Min: 10VDC
Sensing Distance Max: 100mm
Operating Temperature Max: 55°C
Operating Temperature Min: -25°C

Delivery and price
Units per pack	50
Price	131.01 €
Current stock	10+
Lead time	30 days

Datasheet

GRTB18S-P1131V GR18 

**PHOTOELECTRIC SENSORS** 

**GRTB18S-P1131V | GR18** PHOTOELECTRIC SENSORS 

Ordering information **Type part no.** GRTB18S-P1131V 1085747 \ ~~eee~~ Other models and accessories www.sick.com/GR18 ir | Illustration may differ q ECOLAB Ws L» @ 

Detailed technical data 

Features 

|**Functional principle**||Photoelectric proximity sensor|
|---|---|---|
|**Functional principle detail**||Background suppression|
|**Dimensions (W x H x D)**||18 mm x 18 mm x 55.9 mm|
|**Housing design (light emission)**||Cylindrical|
|**Housing length**||55.9 mm|
|**Thread length**||31.7 mm|
|**Thread diameter (housing)**||M18 x 1|
|**Optical axis**||Axial|
|**Sensing range max.**||3 mm ... 100 mm1)|
|**Sensing range**||15 mm ... 100 mm1)|
|**Type of light**||Visible red light|
|**Light source**||PinPoint LED2)|
|**Light spot size (distance)**||Ø 7 mm (100 mm)|
|**Wave length**||650 nm|
|**Adjustment**||None|
|**Display**|||
||LED green|Operating indicator|
|||Static on: power on|
||LED yellow|Status of received light beam|
|||Static on: object present|
|||Static off: object not present|



- 1) Object with 90% remission (based on standard white, DIN 5033). 

- 2) Average service life: 100,000 h at TU = +25 °C. 

**Data sheet | 2026-04-29 05:52:03 Subject to change without notice** 

**2** 

**PHOTOELECTRIC SENSORS | SICK** 

**GRTB18S-P1131V | GR18** PHOTOELECTRIC SENSORS 

## **Special applications** 

## Hygienic and washdown zones 

1) Object with 90% remission (based on standard white, DIN 5033). 

2) Average service life: 100,000 h at TU = +25 °C. 

## Mechanics/electronics 

|**Supply voltage UB**|10 V DC ... 30 V DC1)|
|---|---|
|**Ripple**|< 5 Vpp 2)|
|**Current consumption**|30 mA|
|**Switching output**|PNP|
|**Output function**|Complementary|
|**Switching mode**|Light/dark switching3)|
|**Signal voltage PNP HIGH/LOW**|VS- (≤ 3 V) / approx. 0 V|
|**Output current Imax.**|≤ 100 mA4)|
|**Response time**|< 500 µs5)|
|**Switching frequency**|1,000 Hz6)|
|**Connection type**|Cable, 4-wire, 2 m7)|
|**Cable material**|Plastic, PVC|
|**Conductor cross section**|0.14 mm²|
|**Cable diameter**|Ø 4.8 mm|
|**Circuit protection**|A8)<br>B9)<br>D10)|
|**Protection class**|III|
|**Weight**|100 g|
|**Housing material**|Metal, Stainless steel V4A (1.4404, 316L)|
|**Optics material**|Plastic, PMMA|
|**Tightening torque, max.**|90 Nm|
|**Enclosure rating**|IP67<br>IP6811)<br>IP69K12)|
|**Items supplied**|Fastening nuts (2 x)|
|**Electromagnetic compatibility (EMC)**|EN 60947-5-2|



- 1) Limit values. Operated in short-circuit protected network: max. 8 A. 2) May not fall below or exceed UV tolerances. 

- 3) Q = light switching; Ǭ = dark switching. 

- 4) At Uv > 24 V or ambient temperature > 49 °C, IA max. = 50 mA. 5) Signal transit time with resistive load. 

- 6) With light/dark ratio 1:1. 

- 7) Do not bend below 0 °C. 

- 8) A = VS connections reverse-polarity protected. 

- 9) B = inputs and output reverse-polarity protected. 

- 10) D = outputs overcurrent and short-circuit protected. 

- 11) According to EN 60529 (10 m water depth / 24 h). 

- 12) According to ISO 20653:2013-03. 

- 13) At Uv <=24V and IA<50mA. 

**2026-04-29 05:52:03 | Data sheet Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**3** 

**GRTB18S-P1131V | GR18** PHOTOELECTRIC SENSORS 

|**Ambient operating temperature**|–25 °C ... +55 °C13)|
|---|---|
|**Ambient temperature, storage**|–30 °C ... +75 °C|
|**UL File No.**|NRKH.E348498 & NRKH7.E348498|



1) Limit values. Operated in short-circuit protected network: max. 8 A. 2) May not fall below or exceed UV tolerances. 

> 3) Q = light switching; Ǭ = dark switching. 4) At Uv > 24 V or ambient temperature > 49 °C, IA max. = 50 mA. 5) Signal transit time with resistive load. 6) With light/dark ratio 1:1. 7) Do not bend below 0 °C. 8) A = VS connections reverse-polarity protected. 

9) B = inputs and output reverse-polarity protected. 10) D = outputs overcurrent and short-circuit protected. 11) According to EN 60529 (10 m water depth / 24 h). 12) According to ISO 20653:2013-03. 13) At Uv <=24V and IA<50mA. 

## Certificates 

|**EU declaration of conformity**|✔|
|---|---|
|**UK declaration of conformity**|✔|
|**ACMA declaration of conformity**|✔|
|**Moroccan declaration of conformity**|✔|
|**ECOLAB certificate**|✔|
|**cULus certificate**|✔|
|**Photobiological safety (DIN EN 62471) cer-**|✔|
|**tificate**||



## Classifications 

|**ECLASS 5.0**|27270904|
|---|---|
|**ECLASS 5.1.4**|27270904|
|**ECLASS 6.0**|27270904|
|**ECLASS 6.2**|27270904|
|**ECLASS 7.0**|27270904|
|**ECLASS 8.0**|27270904|
|**ECLASS 8.1**|27270904|
|**ECLASS 9.0**|27270904|
|**ECLASS 10.0**|27270904|
|**ECLASS 11.0**|27270904|
|**ECLASS 12.0**|27270903|
|**ETIM 5.0**|EC002719|
|**ETIM 6.0**|EC002719|
|**ETIM 7.0**|EC002719|
|**ETIM 8.0**|EC002719|
|**UNSPSC 16.0901**|39121528|



**4** 

**Data sheet | 2026-04-29 05:52:03 Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**GRTB18S-P1131V | GR18** PHOTOELECTRIC SENSORS 

## Connection diagram Cd-094 

**==> picture [61 x 56] intentionally omitted <==**

**----- Start of picture text -----**<br>
BN<br>+ (L+)<br>WH Q<br>BU<br>-  (M)<br>BK<br>Q<br>**----- End of picture text -----**<br>


## Characteristic curve GRTB18(S) Inox 

Minimum distance between set sensing range and background (white, 90%) in % of sensing range 

**==> picture [379 x 214] intentionally omitted <==**

**----- Start of picture text -----**<br>
white background (90%)<br>y<br>25<br>20 6%/90%<br>1 x y<br>15<br>Example:<br>Sensing range on black, 6%<br>18%/90% x = 100 mm, y = (10% of 100 mm) =10 mm<br>10 2<br>90%/90%<br>5 3<br>x<br>0<br>0 50 100 150 200 250 300<br>(1.97) (13.94) (5.91) (7.87) (9.84) (11.81)<br>Distance in mm (inch)<br>**----- End of picture text -----**<br>


1 Sensing range on black, 6 % remission 2 Sensing range on gray, 18 % remission 

3 Sensing range on white, 90 % remission 

Sensing range diagram GRTB18(S) Inox 

**==> picture [194 x 93] intentionally omitted <==**

**----- Start of picture text -----**<br>
1 5/8 90 95<br>2 3/5 95 100<br>3 2/3 100 105<br>0 20 40 60 80 100 120<br>(0.79) (1.57) (2.36) (3.15) (3.94) (4.72)<br>Distance in mm (inch)<br>Sensing range Sensing range max.<br>**----- End of picture text -----**<br>


① Sensing range on black, 6% remission factor ② Sensing range on gray, 18% remission factor ③ Sensing range on white, 90% remission factor 

**2026-04-29 05:52:03 | Data sheet Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**5** 

**GRTB18S-P1131V | GR18** PHOTOELECTRIC SENSORS 

## Dimensional drawing GRTB18S Inox, cable, straight 

2 M18x1 ~~=~~ 3 ~~ce~~ 5 1 6 7 M18x1 ~~>~~ 8 elt 4.7 (0.19) Dimensions in mm (inch) 

① Connection 

② Threaded mounting hole M18 x 1 

③ fastening nuts (2 x); width across 24, stainless steel 

⑤ LED indicator (4 x) 

⑥ optical axis, receiver 

⑦ optical axis, sender 

⑧ Standard direction 

## Recommended accessories 

|**Brief description**|**Brief description**|**Type**|**part no.**|
|---|---|---|---|
|Mounting systems||||
|• <br>• <br>• <br>• <br><°|**Description:**Mounting bracket for M18 sensors<br> **Material:**Stainless steel<br> **Details:**Stainless steel<br> **Items supplied:**Without mounting hardware|BEF-WN-M18N|5320947|
|connectors and cables||||
|• <br>• <br>• <br>• <br>x.|**Description:**Unshielded<br> **Connection type head A:**Male connector, M12, 4-pin, straight, A-coded<br> **Connection systems:**Screw-type terminals<br> **Permitted cross-section:**≤ 0.75 mm²|STE-1204-G|6009932|



**6** 

**Data sheet | 2026-04-29 05:52:03 Subject to change without notice** 

**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.

About Novapart

Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.

Learn more →

Stock Shortage Specialist

When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.

Request a quote →

Compliant Alternatives

We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.

BOM Analysis service →