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

RS Stock No.:: 245-9070
Mfr. Part No.:: UM18-21812B211
Brand:: SICK

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

Subtotal (1 unit)*

$738.48

(exc. GST)

$849.25

(inc. GST)

FREE delivery for orders over $60.00 ex GST

In Stock

Plus 2 unit(s) shipping from 05 December 2025

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

Units	Per unit
1 +	$738.48

*price indicative

RS Stock No.:: 245-9070
Mfr. Part No.:: UM18-21812B211
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
	Detection Range	1 m
	Body Style	Threaded Barrel
	Digital Switching Output Type	PNP/NPN
	Connection Type	M12
	Supply Voltage	10 → 30 V dc
	Length	52.7mm
	IP Rating	IP65, IP67
	Housing Material	Metal
	Width	18mm
	Maximum DC Voltage	30V
	Diameter	18 mm
	Minimum Operating Temperature	-25°C
	Short Circuit Overload Protection	Yes
	Shielding	Partial
	Series	UM
	Switching Frequency	10 Hz
	Standards Met	CE
	Switching Current	100 mA
	Maximum Switching Frequency	10Hz
	Communication Protocol	IO-LINK
	Maximum Operating Temperature	+70°C
	Depth	18mm
	Reverse Polarity Protection	Yes

	Select all
	Brand SICK
	Thread Size M18
	Sensor Technology Ultrasonic
	Detection Range 1 m
	Body Style Threaded Barrel
	Digital Switching Output Type PNP/NPN
	Connection Type M12
	Supply Voltage 10 → 30 V dc
	Length 52.7mm
	IP Rating IP65, IP67
	Housing Material Metal
	Width 18mm
	Maximum DC Voltage 30V
	Diameter 18 mm
	Minimum Operating Temperature -25°C
	Short Circuit Overload Protection Yes
	Shielding Partial
	Series UM
	Switching Frequency 10 Hz
	Standards Met CE
	Switching Current 100 mA
	Maximum Switching Frequency 10Hz
	Communication Protocol IO-LINK
	Maximum Operating Temperature +70°C
	Depth 18mm
	Reverse Polarity Protection Yes

COO (Country of Origin):: DE

SICK UM-18 Series Proximity Sensor, Ultrasonic Sensor Technology, Threaded Barrel Body Style - UM18-21812B211

This proximity sensor is an ultrasonic device designed for precise distance measurements. With a detection range of up to 1m and a compact threaded barrel design, this sensor measures 52.7mm in length and 18mm in diameter. The metal housing enhances durability, making it suitable for various industrial applications.

Features & Benefits

• Offers reliable detection up to 1m for accurate measurements
• Supports PNP/NPN output for versatile application integration
• Operates within a supply voltage range of 10 to 30V DC
• IP65 and IP67 ratings provide protection against dust and moisture
• Utilises IO-Link for advanced communication and diagnostics
• Reverse polarity and short circuit protection ensure safe operation

Applications

• Used for proximity detection in automated assembly lines
• Suitable for distance measurement in material handling systems
• Ideal for object detection in packaging machinery
• Employed in robotics for precise positioning and navigation
• Utilised in various electrical and mechanical setups for automation

What protocols does this sensor support for communication?

The device supports the IO-Link protocol, enabling advanced process data, easy parameterisation, and real-time diagnostics for effective system integration.

How does temperature compensation enhance its performance?

Temperature compensation allows the sensor to maintain measurement accuracy despite variations in ambient temperature, ensuring reliable operation across a wide range of conditions from -25 °C to +70 °C.

What makes this device suitable for harsh environments?

With an IP65 and IP67 rating, the metal housing provides excellent protection against dust and water ingress, making it robust for use in industrial settings where exposure to harsh elements is common.