Model explanation of proximity switch:

| Number | Composition | Code and Definition |
| 1 | Switch catalogue | LM: inductance type; CM: capactitance type; SM:Hall type; AM:safety explosion- proof type; XM: mimic linear type |
| 2 | Outward appearance code | ■: Cylinder type; F: Angular column type and plane installation type |
| 3 | Working voltage | 30: 6-36VDC; 310: 5-24VDC; 320: 12-60VDC; 20: 90-250VAC; 210: 24-250VAC; 220: 380VAC; 40: 12-240VDC/24-240AC; 50: Special voltage |
| 4 | Detection distance | 01: 1mm; 05:5mm; 10:10mm |
| 5 | Output form | N: Three-line DC NPN output; P: Three-line DC PNP output; L: Two-line DC output; ■: AC two-wire output; J: Relay output; NP: NPN+PNP output |
| 6 | Output state | A: NO; B: NC; C: NO+NC; MU: Mimic voltage; MI: Mimic current |
| 7 | Subsidiary functions | T: With connector; Y: Water proof, oil proof; I: Special requirement; H: High temp resistance; R: Ring type |
Main features:
– Compact volume
– high precision of repeated location
– Diversified exterior structures
– Good performance of anti-interference.
– Many output forms
– High on-off frequency
– Wide voltage range
– Dust proof,vibration proof,water proof and oil proof.
– With short-circuit protection and inverted connecting protection.
– Long service life
Technical Parameter(Proximity Sensor Switch LM12):
| Detect distance | 2mm | ||||
| NO | LM12-3002NA | ||||
| NPN | NC | LM12-3002NB | |||
| NO+NC | LM12-3002NC | ||||
| DC | PNP | NO | LM12-3002PA | ||
| Flush | 6-36VDC | NC | LM12-3002PB | ||
| Type | NO+NC | LM12-3002PC | |||
| Two wire | NO | LM12-3002LA | |||
| system | NC | LM12-3002LB | |||
| AC | Control Silicon | NO | LM12-2002A | ||
| 90-250VAC | NC | LM12-2002B | |||
| NO+NC | |||||
| AC | Relay Output | ||||
| Detect distance | 4MM | ||||
| NO | LM12-3004NA | ||||
| DC | NPN | NC | LM12-3004NB | ||
| NO+NC | LM12-3004NC | ||||
| DC | NO | LM12-3004PA | |||
| Non- | 6-36VDC | PNP | NC | LM12-3004PB | |
| Flush | NO+NC | LM12-3004PC | |||
| Type | DC | Two wire | NO | LM12-3004LA | |
| AC | system | NC | LM12-3004LB | ||
| AC 90-250VAC | control silicon | NO | LM12-2004A | ||
| NC | LM12-2004B | ||||
| NO+NC | |||||
| Relay Output | |||||
| Ouput current | DC | 200mA | |||
| Relay output | 300mA | ||||
| Output voltage drop | DC/AC below 3V/ 10V | two wire below 3.9V | |||
| Consumption current | DC below 15mA | AC Below10mA | |||
| Detect object | 15 x 15 x 1 A3 iron | ||||
| Repeated precision | 0.01 | ||||
| Response frequency | DC/AC | 400Hz /25Hz | |||
| Ambient Temperature | -25℃~ +75℃ | ||||
| Shell material | Metal | ||||
| Protection grade | IP67 | ||||
