Leuze HRTU 412/4NO.2-S12 Ultrasonic Sensor
Leuze HRTU 412/4NO.2-S12 Ultrasonic Sensor delivers 0.04–0.4 m operating range, 290 kHz ultrasonic frequency, and PNP transistor output for automation. This Leuze Ultrasonic Sensor belongs to the 418B series and features M12 x 1 mm cylindrical metal housing, 12–30 V DC supply, 20 Hz switching frequency, 25 ms response time, 4-pin connector, background suppression principle, IP67 protection, and -10 to 60 °C operating temperature.
| Brand | Leuze |
| Product Type | Ultrasonic Sensor |
| Product | HRTU 412/4NO.2-S12 |
Leuze HRTU 412/4NO.2-S12 Ultrasonic Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Design | Cylindrical |
| Thread Size | M12 x 1 mm |
| Dimension | 12 mm x 70 mm |
| Operating range | 0.04 ... 0.4 m |
| Operating principle | Diffuse reflection principle with background suppression |
| Ultrasonic frequency | 290 kHz |
| Opening angle | - |
| Adjustment range | - |
| Resolution | - |
| Supply voltage UB | 12 ... 30 V, DC |
| Number of Connections | - |
| Switching voltage | - |
| Switching output 1 | Transistor, PNP |
| Switching frequency | 20 Hz |
| Interface Type | - |
| Response time | 25 ms |
| Connection 1 Function | Signal OUT Teach input Voltage supply |
| Type of connection | Connector |
| No. of Pin | 4-pin |
| Housing material | Metal |
| Ambient temperature, operation | -10 ... 60 °C |
| Ambient temperature, storage | -40 ... 85 °C |
| Degree of protection | IP 67 |
The HRTU 412/4NO.2-S12 Leuze Front Direction of Beam Ultrasonic Sensors model is engineered for short-distance detection in industrial automation systems. It operates within a 0.04–0.4 m sensing range and uses 290 kHz ultrasonic frequency to deliver stable detection performance. Equipped with PNP transistor output and 20 Hz switching frequency, this device belongs to the 418B series for structured signal control applications.
In conveyor handling, packaging machines, and automated assembly lines, the HRTU 412/4NO.2-S12 ensures reliable object presence detection. The diffuse reflection principle with background suppression supports consistent sensing across varied materials. Its 4-pin connector and 12–30 V DC supply enable integration into standard industrial control panels and machine wiring systems.
The HRTU 412/4NO.2-S12 from Leuze features IP67 protection and a metal M12 cylindrical housing for industrial environments. Defined response time and switching frequency support repeatable performance in automation processes. As a Leuze Ultrasonic Sensor within the 418B series, it provides dependable operation for manufacturing and production systems.

