This RS PRO capacitive sensor is a proximity sensor you can use to detect metallic and non-metallic objects without physical contact. The sensor uses an electrical field to detect and measure materials that are conductive or have a greater dielectric constant than air.
This unit is made from polybutylene terephthalate (PBT) to ensure it's strong and resistant to chemicals and heat. It has an Ingress Protection (IP) rating of IP67, which means it's shielded against dust and temporary immersion in water. The sensor also features reverse polarity and short circuit overload protection, so you can be sure your equipment will be protected should something go wrong with the wiring.

• Block body style
• Detection range of 10 mm
• Dimensions of 50 (length) x 20 (width) x 10 mm (depth)
• PBT (Polybutylene Terephthalate) housing material
• IP (Ingress Protection) rating of IP67
• Maximum operating temperature of +55°C
• Minimum operating temperature of -10°C
• Non-flush mounting style
• Output type of PNP (Positive Negative Positive)
• Reverse polarity protection
• Capacitive sensor technology
• Shielded
• Short circuit overload protection
• Conforms to CE (Conformité Européenne) and IEC (International Electrotechnical Commission) standards
• Supply voltage of 10 to 30 V DC
• Switching current of 200 mA (milliamperes)
• Switching frequency of 30 Hz
• Cable terminal type