Laser sensor with M8*1mm metal detection head, 1mm spot size, diffuse reflection/through beam detection mode and NPN/PNP NO/NC output mode for selection.
Specification:
Model | CHN-LASES-M8 |
Shipping weight | 2kg |
Thread size | M8*1mm |
Detection of spot size | 1mm |
Detection mode * | Diffuse reflection type, through beam type |
Detection range | Diffuse reflection type: Sn=300mm, through beam type: Sn=50m |
Light source | Infrared ray LED (880nm) The laser beam is invisible. The laser spot is visible. |
Output mode * | NPN NO, NPN NC, PNP NO, PNP NC |
Power supply | 10-30VDC |
No-load current | <10mA |
Maximum load current | 150mA |
Leakage current | <0.01mA |
Voltage drop | <1V |
Switching frequency | 120Hz |
Response time | 0.1ms |
Switching hysteresis | <15% (sr) |
Repeat accuracy | <1.0% (sr) |
Protection class | IP67 |
Environment humidity | 35-95% |
Operating temperature | -5~+50℃ (23~122℉) |
Temperature drift | <10% (sr) |
Short circuit protection | Yes |
Indicator light | Yes |
Housing material | 304 stainless steel (detector), plastic (connector protective sleeve) |
Connection method | Direct lead wire |
Cable length | 2m |
Note: The detection range of diffuse reflection laser sensor can be adjusted by the knob (Clockwise rotation for adding distance, anticlockwise rotation for reducing distance). The detection range of through beam laser sensor can be adjusted by the distance of projector and receiver.
Dimension (diffuse reflection type, unit: mm):

Wiring diagram:

Tips: Laser sensors vs. ultrasonic sensors
Ultrasonic sensors are also often used to detect objects at greater distances, and since it is not an optical device, it is not affected by color changes. However, ultrasonic sensors measure distance based on the speed of sound, so they have some inherent disadvantages and cannot be used in the following situations.
- When the target to be measured is not perpendicular to the transducer of the sensor. The target of ultrasonic detection must be within an angle of no more than 10° from the vertical azimuth of the sensor.
- When the beam diameter is small. The general ultrasonic beam is 0.76cm in diameter when it is 2m away from the sensor.
- When a visible spot is required for position calibration.
- Windy occasions.
- Vacuum occasions.
- When the temperature gradient is large. In this case the speed of sound will change.
- Occasions that require quick response.
While the laser sensor can solve the detection of all the above occasions, which cannot be done by ultrasonic sensors.
M8 laser sensor with laser spot size 1mm can be used for industrial automation control, such as measuring the object position, length and height, or detecting the motor speed. M8 laser sensor has diffuse reflection/through beam detection mode and NPN/PNP NO/NC output mode for selection, thread size M8*1mm, protection class IP67. The diffuse reflection type and through beam type laser sensor have respective detection range of 300mm/50m.