SICK Retroreflective Photoelectric Sensor, Rectangular Sensor, 0.005 → 30 m Detection Range IO-LINK

RS Stock No.:: 445-291
Mfr. Part No.:: GTB20M-3411116GZZZZ3ZZZZZZZZZ1 / 1136809
Brand:: SICK

SICK Retroreflective Photoelectric Sensor, Rectangular Sensor, 0.005 → 30 m Detection Range IO-LINK

Subtotal (1 unit)*

£203.49

(exc. VAT)

£244.19

(inc. VAT)

FREE delivery for orders over £50.00

Temporarily out of stock

Shipping from 08 December 2025

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Units	Per unit
1 +	£203.49

*price indicative

Photoelectric Sensors to Sensors & Actuator Cables

Don’t Forget the Cables

Photoelectric sensors need the right cables to connect, communicate, and perform reliably. Our range of sensors & actuator cables are designed for secure connections, fast installation, and long-lasting durability. If you're selecting sensors, make sure to explore compatible cables to complete your setup and ensure optimal performance in your application.

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RS Stock No.:: 445-291
Mfr. Part No.:: GTB20M-3411116GZZZZ3ZZZZZZZZZ1 / 1136809
Brand:: SICK

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	SICK
	Sensor Style	Rectangular
	Detection Type	Retroreflective
	Detection Range	0.005 → 30 m
	Output Type	Push Pull
	Switching Mode	Light / Dark switching
	Electrical Connection	4-pin, 315 mm, Cable With M12 Male Connector
	Communication Protocol	IO-LINK
	Maximum DC Voltage	30V
	Terminal Type	M12 Connector
	Light Source	LED
	IP Rating	IP67
	Maximum Current	100 mA
	Response Time	1.67 ms
	Series	1136809
	Housing Material	ABS/PMMA, Plastic
	Minimum Operating Temperature	-30°C
	Maximum Operating Temperature	+60°C
	Mounting Type	PCB Mount
	Standards Met	CE Certified, UL Certified
	Thread Size	M12

	Select all
	Brand SICK
	Sensor Style Rectangular
	Detection Type Retroreflective
	Detection Range 0.005 → 30 m
	Output Type Push Pull
	Switching Mode Light / Dark switching
	Electrical Connection 4-pin, 315 mm, Cable With M12 Male Connector
	Communication Protocol IO-LINK
	Maximum DC Voltage 30V
	Terminal Type M12 Connector
	Light Source LED
	IP Rating IP67
	Maximum Current 100 mA
	Response Time 1.67 ms
	Series 1136809
	Housing Material ABS/PMMA, Plastic
	Minimum Operating Temperature -30°C
	Maximum Operating Temperature +60°C
	Mounting Type PCB Mount
	Standards Met CE Certified, UL Certified
	Thread Size M12

COO (Country of Origin):: DE

Overview

The G20 sensors enable reliable object detection over longer distances and are particularly well-suited for use in dusty environments thanks to the high operating reserve. They are compact, economical and offer an excellent price-performance ratio. The additional front LED and the rotary switches facilitate commissioning and operational checks.

The light/dark switching, adjustable sensitivity and configurable signal delay make the photoelectric sensors flexible for use in numerous applications. They are also fully compatible with each other in terms of mounting, as DC and AC/DC devices are available in the same design and with different mechanical mounting options.

At a glance

Additional front LED provides information on light reception status
Large sensing range with high operating reserve
M12 male connector, cable and connection chamber
DC and AC/DC voltage supply
Operating temperature range from –30 °C to +60 °C
Optionally with time delay

Your Benefit

Reduced downtime thanks to high reliability and operating reserve, especially in dirty environments
Reliable object detection over longer distances
Excellent price/performance ratio thanks to proven technology
Intuitive and fast commissioning thanks to light/dark switching, additional front LED and adjustable signal delay
Compact design and availability for DC and AC/DC ensure compatibility when it comes to installation

Applications

Logistics:
Presence detection at induction lines and transfer points
Skid detection at the lifter exit
Mobility and outdoor automation:
Checking for objects present in the transfer area and gap monitoring on a lift
Protrusion monitoring before storage
Detecting the presence of objects on the baggage claim carousel
Automotive:
Skid detection at the lifter exit

Note

Product details cover the whole product family. For details on the specifications for this individual product, please refer to the datasheet.