M8 inductive sensor uses the mutual induction principle of metal conductors and alternating electromagnetic fields. The detection coil located at the front end of the sensor generates a high-frequency magnetic field. When a metal object approaches the magnetic field, eddy currents are generated inside the metal object, causing the magnetic field energy to attenuate. When the metal object continues to approach the sensing surface of the sensor, the energy is absorbed and attenuated. When the attenuation reaches a certain level, the sensor switch is triggered to output a signal, thereby achieving the purpose of non-contact detection.
Main Features
1.M8 Inductive Sensor suitable for narrow spaces
2.Suitable for industrial fields such as plastic machinery, packaging machinery, machine tools, and automated assembly lines
3.Support embedded or non-embedded installation, and provide precise positioning detection and rotation control
4.Suitable for standard machinery, compact and adaptable to small assembly equipment, meeting different installation needs.
5.High-quality chips provide powerful computing power, more sensitive response and more accurate detection.
6.Overload protection;Short circuit protection;Faster operation;Reverse polarity protection
7.Probe PBT;Corrosion-resistant;Moisture-resistant;Water-resistant;Oil-resistant
8.Switch housing;Nickel-plated brass;Stainless steel;Rugged material
9.Strong anti-interference; anti-strong magnetism, anti-welding slag, ultrasonic anti-interference technology
10.Seven steps of strict testing to ensure the quality of each product: high and low temperature impact test; load aging test; performance test; vibration test; voltage resistance test; wire bending and tension test; surge test
Advantages of m8 inductive sensor
- Durable and reliable: usually encapsulated in sturdy materials (metal or high-performance plastic), capable of withstanding harsh industrial environments (impact, vibration).
- High precision and high resolution: capable of accurately detecting micrometer-level displacement changes of metal targets (especially analog output type), providing stable position feedback.
- Non-contact measurement: This is the most essential feature, as there is no physical contact between the sensor and the metal target being measured, and detection is carried out through electromagnetic induction. It has no friction or wear, extending the life of the sensor and the measured object itself. No mechanical load will affect high-speed or light objects being measured.
- Only sensitive to metals: can only detect conductor materials (mainly metals). Does not react to non-metallic materials such as plastic, wood, paper, and the human body.




FAQ
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Standard unshielded cylindrical type inductive sensor specification
| Model | Detection distance | Set distance | Response difference distance |
NPN/PNP | Action mode | Standard test substance | Voltage | Current consumption | Load current | Residual voltage | Switch frequency |
Protection circuit | Ambient temperature | Protection level |
| GPL-M08KU02-NO-2m | 2mm | 0~1.6mm | Within 10% detection distance | NPN | Normally open | Mild steel (ST37) | Below 10-30VDC | Below 8mA | Below 100mA | Below 1V | 800Hz | Output polarity reverse protection, power supply reverse polarity protection, surge absorption, short circuit protection | -25~70℃ | IP67 |
| GPL-M08KU02-NC-2m | NPN | Normally closed | ||||||||||||
| GPL-M08KU02-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08KU02-PC-2m | PNP | Normally closed | ||||||||||||
| GPL-M08LU02-NO-2m | NPN | Normally open | ||||||||||||
| GPL-M08LU02-NC-2m | NPN | Normally closed | ||||||||||||
| GPL-M08LU02-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08LU02-PC-2m | PNP | Normally closed |
Standard shielded cylindrical inductive proximity sensor specification
| Model | Detection distance | Set distance | Response difference distance |
NPN/PNP | Action mode | Standard test substance | Voltage | Current consumption | Load current | Residual voltage | Switch frequency |
Protection circuit | Ambient temperature | Protection level |
| GPL-M08KS01-NO-2m | 1.5mm | 0-1.2mm | Within 10% detection distance | NPN | Normally open | Mild steel (ST37) | Below 10-30VDC | Below 8mA | Below 100mA | Below 1V | 800Hz | Output polarity reverse protection, power supply reverse polarity protection, surge absorption, short circuit protection | -25~70℃ | IP67 |
| GPL-M08KS01-NC-2m | Normally closed | |||||||||||||
| GPL-M08KS01-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08KS01-PC-2m | Normally closed | |||||||||||||
| GPL-M08LS01-NO-2m | NPN | Normally open | ||||||||||||
| GPL-M08LS01-NC-2m | Normally closed | |||||||||||||
| GPL-M08LS01-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08LS01-PC-2m | Normally closed |
Double distance unshielded circular inductor proximity sensor specification
| Model | Detection distance | Set distance | Response difference distance |
NPN/PNP | Action mode | Standard test substance | Voltage | Current consumption | Load current | Residual voltage | Switch frequency |
Protection circuit | Ambient temperature | Protection level |
| GPL-M08KU04-NO-2m | 4mm | 0~3.2mm | Within 10% detection distance | NPN | Normally open | Mild steel (ST37) | Below 10-30VDC | Below 8mA | Below 100mA | Below 1V | 1000Hz | Output polarity reverse protection, power supply reverse polarity protection, surge absorption, short circuit protection | -25~70℃ | IP67 |
| GPL-M08KU04-NC-2m | NPN | Normally closed | ||||||||||||
| GPL-M08KU04-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08KU04-PC-2m | PNP | Normally closed | ||||||||||||
| GPL-M08LU04-NO-2m | NPN | Normally open | ||||||||||||
| GPL-M08LU04-NC-2m | NPN | Normally closed | ||||||||||||
| GPL-M08LU04-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08LU04-PC-2m | PNP | Normally closed |
Double distance shielded circular inductor proximity sensor specification
| Model | Detection distance | Set distance | Response difference distance |
NPN/PNP | Action mode | Standard test substance | Voltage | Current consumption | Load current | Residual voltage | Switch frequency |
Protection circuit | Ambient temperature | Protection level |
| GPL-M08KS02-NO-2m | 2mm | 0-1.6mm | Within 10% detection distance | NPN | Normally open | Mild steel (ST37) | Below 10-30VDC | Below 8mA | Below 100mA | Below 1V | 1500Hz | Output polarity reverse protection, power supply reverse polarity protection, surge absorption, short circuit protection | -25~70℃ | IP67 |
| GPL-M08KS02-NC-2m | Normally closed | |||||||||||||
| GPL-M08KS02-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08KS02-PC-2m | Normally closed | |||||||||||||
| GPL-M08LS02-NO-2m | NPN | Normally open | ||||||||||||
| GPL-M08LS02-NC-2m | Normally closed | |||||||||||||
| GPL-M08LS02-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08LS02-PC-2m | Normally closed |













