Leuze HTU418B-400/4T4-M12 Ultrasonic Sensor
Leuze HTU418B-400/4T4-M12 Ultrasonic Sensor offers 0.025–0.4 m operating range, 310 kHz ultrasonic frequency, and PNP transistor output detection capability. This Leuze Ultrasonic Sensor features M18 x 1 mm cylindrical metal housing, 18 x 75 mm dimensions, 9° opening angle, 15–30 V DC supply voltage, 7 Hz switching frequency, 71 ms response time, low switching voltage ≤2.5 V, 5-pin M12 connector with Signal OUT and Teach input, -25 to 70 °C operation, IP67 and IP68 protection, and belongs to the 418B series.
| Brand | Leuze |
| Product Type | Ultrasonic Sensor |
| Product | HTU418B-400/4T4-M12 |
Leuze HTU418B-400/4T4-M12 Ultrasonic Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Design | Cylindrical |
| Thread Size | M18 x 1 mm |
| Dimension | 18 mm x 75 mm |
| Operating range | 0.025 ... 0.4 m |
| Operating principle | Diffuse reflection principle with background suppression |
| Ultrasonic frequency | 310 kHz |
| Opening angle | 9 ° |
| Adjustment range | - |
| Resolution | - |
| Supply voltage UB | 15 ... 30 V, DC |
| Number of Connections | - |
| Switching voltage | low: ≤ 2.5 V |
| Switching output 1 | Transistor, PNP |
| Switching frequency | 7 Hz |
| Interface Type | - |
| Response time | 71 ms |
| Connection 1 Function | Signal OUT Teach input Voltage supply |
| Type of connection | Connector |
| No. of Pin | 5 -pin |
| Housing material | Metal |
| Ambient temperature, operation | -25 ... 70 °C |
| Ambient temperature, storage | -25 ... 70 °C |
| Degree of protection | IP 67 IP 68 |
The HTU418B-400/4T4-M12 defined as HTU418B-400/4T4-M12 Leuze Transistor PNP, 7 Hz Ultrasonic Sensors operates within a 0.025–0.4 m operating range using 310 kHz ultrasonic frequency. It integrates 15–30 V DC supply voltage and PNP transistor switching output with 7 Hz switching frequency. This model belongs to the 418B Series and is used in industrial automation systems requiring stable short-distance ultrasonic detection.
In conveyor monitoring, packaging equipment, automated assembly lines, and material handling systems, this ultrasonic sensor enables reliable non-contact detection. The diffuse reflection principle with background suppression supports consistent performance across varying surface textures. Its metal housing with IP67 and IP68 protection ensures suitability in environments exposed to dust, moisture, and industrial washdown conditions.
The HTU418B-400/4T4-M12 from Leuze connects via a 5-pin M12 connector supporting Signal OUT and Teach input functions. As part of the 418B Series ultrasonic portfolio, Leuze ultrasonic sensors are designed for dependable sensing tasks across manufacturing and process automation applications in India.

