Mini Through-Beam Laser Sensor M4 M6 90 Degree
This is a fiber optic laser sensor, very small in size (M4 or M6 thread).
- Through-beam type consists of 2 ends:
- 1 laser emitter
- 1 laser receiver (placed opposite each other) - 90° (side view) type:
- The laser beam does not travel straight along the axis but bends at a 90° angle
- Suitable for narrow spaces, horizontal mounting, and mounting close to a jig

This type is commonly found in:
- Bonding machines
- AOI machines
- Small inspection jigs
| Item | Specification |
| Detection distance | 20 m |
| Standard target | 100 × 100 mm (white paper) |
| Light source | 650 nm red light |
| Spot size | Approx. ~1 mm |
| LED indicator | Emitter: Green; Receiver: Yellow |
| Model NPN NO | LTT-0420MNO-TZVN |
| Operating voltage | 10–30 VDC |
| No-load current | < 10 mA |
| Max load current | 150 mA |
| Leakage current | < 0.01 mA |
| Voltage drop | < 1.5 V |
| Switching frequency | 100 Hz |
| Response time | 5 ms |
| Hysteresis | < 15% (Sr) |
| Repeatability | < 5% (Sr) |
| Protection rating | IP65 |
| Operating temperature | 0°C ~ +55°C |
| Short circuit protection | Yes |
| Overload protection | Yes |
| Connection | 3-core PVC cable |
| Weight | Approx. 30.6 g × 2 |
| Certification | CE, RoHS |
Installation notes :
1. When installing the photoelectric switch and laser switch, ensure that the switch is perpendicular to the detection object as much as possible. When installing side by side, it must not be installed too densely. There must be a certain interval. The interval distance requirement is directly related to the actual use environment, so as not to cause interference after installation Prevail.
2. The factory detection standard of photoelectric switch and laser switch is a square pure white paper baffle. The actual detection distance will change due to the difference of the color reflectivity of the picked object.
3. Laser and photoelectric products are not suitable for use in dusty, oily, humid and vibrating environments. The operating temperature is 0-50℃. The section of the switch head to the middle amplifier part has an optical fiber cable and cannot be folded. It is not resistant to the interference of the motor and the inverter. It should be kept at a certain distance. The working voltage is DC10-30V and the load current should not exceed 100 mA. (The switch cannot be used in areas involving personal safety, such as anti-pinching.
4. The detection standard for laser diffuse reflection and photoelectric diffuse reflection products is A4 pure white cardboard. The detection distance of the product is greatly affected by the color and reflectance of the detected object. The brighter the color, the better the reflection, the longer the detection distance of the product, the color The darker, the worse the reflection, the shorter the detection distance. If a black object is detected, the actual detection distance may only be about 20% of the factory detection distance.




