SICK Ultrasonic Threaded Barrel Proximity Sensor, M18, 1 m Detection, PNP/NPN, 10 → 30 V dc

RS Stock No.:: 267-2125
Mfr. Part No.:: UM18-21812E211
Brand:: SICK

SICK Ultrasonic Threaded Barrel Proximity Sensor, M18, 1 m Detection, PNP/NPN, 10 → 30 V dc

Subtotal (1 unit)*

$838.81

(exc. GST)

$964.63

(inc. GST)

FREE delivery for orders over $60.00 ex GST

In Stock

Plus 1 unit(s) shipping from 08 December 2025

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 +	$838.81

*price indicative

RS Stock No.:: 267-2125
Mfr. Part No.:: UM18-21812E211
Brand:: SICK

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	SICK
	Thread Size	M18
	Sensor Technology	Ultrasonic
	Body Style	Threaded Barrel
	Detection Range	1 m
	Digital Switching Output Type	PNP/NPN
	Connection Type	M12
	Supply Voltage	10 → 30 V dc
	Length	58.2mm
	IP Rating	IP65, IP67
	Housing Material	Metal
	Width	18mm
	Maximum DC Voltage	30V
	Diameter	18 mm
	Minimum Operating Temperature	-25°C
	Switching Current	100 mA
	Communication Protocol	IO-LINK
	Short Circuit Overload Protection	Yes
	Depth	18mm
	Standards Met	CE, EAC
	Series	UM
	Switching Frequency	10 Hz
	Reverse Polarity Protection	Yes
	Maximum Operating Temperature	+70°C
	Maximum Switching Frequency	10Hz

	Select all
	Brand SICK
	Thread Size M18
	Sensor Technology Ultrasonic
	Body Style Threaded Barrel
	Detection Range 1 m
	Digital Switching Output Type PNP/NPN
	Connection Type M12
	Supply Voltage 10 → 30 V dc
	Length 58.2mm
	IP Rating IP65, IP67
	Housing Material Metal
	Width 18mm
	Maximum DC Voltage 30V
	Diameter 18 mm
	Minimum Operating Temperature -25°C
	Switching Current 100 mA
	Communication Protocol IO-LINK
	Short Circuit Overload Protection Yes
	Depth 18mm
	Standards Met CE, EAC
	Series UM
	Switching Frequency 10 Hz
	Reverse Polarity Protection Yes
	Maximum Operating Temperature +70°C
	Maximum Switching Frequency 10Hz

COO (Country of Origin):: DE

SICK UM18 Series Proximity Sensor, Ultrasonic Sensor Technology, 1 m Detection Range - UM18-21812E211

This proximity sensor is an ultrasonic sensing device designed for various industrial applications. Characterised by its threaded barrel design and robust metal housing, this sensor measures 58.2mm in length and 18mm in diameter. It operates within a detection range of up to 1m, making it suitable for a range of automation and control tasks.

Features & Benefits

• Ultrasonic technology ensures accurate distance measurement
• PNP/NPN switching output type simplifies integration into systems
• IP65/IP67 rating provides protection in harsh environments
• Wide supply voltage range enhances compatibility with different systems
• Temperature compensation stabilises performance across varying conditions
• Quick response time of 80 ms improves operational efficiency

Applications

• Utilised in material handling for precise positioning
• Implementation in automatic packaging machinery for distance measurement
• Employed in robotics for obstacle detection
• Integrated into conveyor systems to monitor product spacing

How does temperature affect the functionality of this sensor?

It operates effectively across a wide temperature range from -25 °C to +70 °C, maintaining accuracy with temperature compensation features to mitigate fluctuations.

What are the advantages of using a metal housing for this sensor?

The metal housing provides durability and robust protection against physical impacts and environmental factors, ensuring a longer lifespan in demanding applications.

Can multiple sensors be used in proximity without interference?

Yes, the functionality supports synchronisation with up to 20 sensors, allowing for multiplexing without crosstalk, ideal for dense installations.