Sick KTM-LP227A1P Contrast Sensor
Sick KTM-LP227A1P Contrast Sensor provides ≤50 mm sensing distance, 680 nm red laser light source, and PNP switching output. The KTM-LP227A1P is part of the Sick Contrast Sensor range within the KT series from Sick, supporting 10–30 V DC supply voltage, 0.125 ms response time, Ø 1.7 mm round light spot, small 12 x 31.5 x 21 mm housing, M8 4-pin connector, IP67 enclosure rating, and –20 °C to +45 °C operating temperature.

| Brand | Sick |
| Product Type | Contrast Sensor |
| Product | KTM-LP227A1P |
Sick KTM-LP227A1P Contrast Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Dimensions (W x H x D) | 12 mm x 31.5 mm x 21 mm |
| Sensing distance | ≤ 50 mm |
| Sensing distance tolerance | ± 30 mm |
| Housing design | Small |
| Light source | Laser, red |
| Wave length | 680 nm |
| Light spot size | Ø 1.7 mm (50 mm) |
| Light spot direction | Round |
| Adjustment | Teach-in button |
| Supply voltage | 10 V DC ... 30 V DC |
| Response time | 0.125 ms 4) |
| Switching output | PNP |
| Switching mode | Light/dark switching |
| Enclosure rating | IP67 |
| Connection type | Male connector M8, 4-pin |
| Ambient operating temperature | –20 °C ... +45 °C |
The KTM-LP227A1P Sick Laser, Red Light Source Contrast Sensor is designed for precise contrast detection in industrial automation systems. It operates with ≤50 mm sensing distance and uses a 680 nm red laser light source to generate a defined round light spot. The sensor provides PNP switching output and supports 10–30 V DC supply voltage for integration with standard PLC inputs. KTM-LP227A1P belongs to the KT series and features IP67 protection.
In packaging, labeling, conveyor tracking, and assembly automation, KTM-LP227A1P ensures stable detection of print marks and surface contrasts. The focused Ø 1.7 mm light spot supports accurate switching even on small objects. With a 0.125 ms response time and light/dark switching mode, it performs reliably in high-speed production lines.
The KTM-LP227A1P Sick Laser, Red Light Source Contrast Sensor combines compact mechanical design with consistent optical performance. Its small housing and M8 4-pin connector enable easy installation in limited mounting spaces. As part of the Sick KT series, it maintains standardized electrical characteristics and dependable operation for industrial contrast sensing tasks.

