
The AirTAC Airtac DMSGS Electronic Sensor DMSGS-C12 is a genuine DMS magnetic position switch. It senses the magnet ring in a pneumatic cylinder's piston and signals when the piston reaches that point, giving a 2-wire output on 10-28 V DC with a c12 connection code (confirm from datasheet). It only works on a cylinder that carries a piston magnet.
The DMSGS-C12 is an AirTAC electronic position switch from the DMS solid-state family. It is a 2-wire sensor that clips into the sensor groove of a magnet-equipped AirTAC cylinder and signals when the piston, carrying the built-in magnet option, reaches it. With no N or P in the code this is the 2-wire type, powered from 10-28 V DC with IP64 sealing. The C12 token is a connection code we will confirm from the datasheet on request; the G profile sets the groove fit and the trailing S is a factory variant letter.
A 2-wire electronic switch drops into the load in series, exactly where you would place a mechanical contact, so the circuit keeps its simple two-conductor layout; the trade-off is a small leakage through the load when the sensor is off. The profile letter must match your cylinder's groove before ordering, since a mismatched switch will not seat - send the cylinder series and we will check it.
| Model | Airtac DMSGS Electronic Sensor DMSGS-C12 |
|---|---|
| Family | DMS — Electronic cylinder switch |
| Technology | Electronic (solid-state) |
| Output | 2-wire |
| Outputs in this family | 2-wire, NPN 3-wire or PNP 3-wire |
| Lead / connector | C12 connection code (confirm from datasheet) |
| Supply voltage | 10-28 V DC |
|---|---|
| Protection rating | IP64 |
| Version | Standard version |
| Profile letter | G (cylinder-groove fit) |
| Profiles in this family | E, G, H, J |
| Detects | Piston magnet ring inside the cylinder |
2-wire versions run 10-28 V DC; NPN / PNP 3-wire versions run 5-30 V DC. IP64 as standard. Order the RW version where coolant, washdown or constant cable flexing is present. Switching distance, response time, current rating, voltage drop, LED behaviour, contact life, weight and dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| DMS | Electronic cylinder switch — electronic (solid-state). |
|---|---|
| G | Profile letter: the mounting / groove type that fits a particular cylinder body. This family offers E, G, H, J. It is a fit code, not a performance grade. |
| (blank) | Output: 2-wire. Blank is 2-wire, N is NPN 3-wire, P is PNP 3-wire. |
| C12 | C12 connection code (confirm from datasheet). 020 / 030 / 050 / 100 are 2 / 3 / 5 / 10 m flying leads; M08 and M12 are M8 / M12 connector versions. |
| (blank) | Standard version. |
We do not hold the full profile-to-cylinder-series table, so confirm the profile letter against your cylinder model before ordering — send us the cylinder part number and we will check the fit.
The split is electrical, not quality. Solid-state DMS and EMS are DC-only and suit modern PLC inputs; the reed-based CMS switches a much wider window, so it is the one for AC circuits, relay logic and older panels. The RW (IP68) option exists on DMS and EMS only.
| This switch | DMSG · 2-wire · 10-28 V DC |
|---|---|
| Consider EMS | the mini 2-wire electronic switch for tight installations |
| Consider CMS | the reed alternative for AC circuits and voltages up to 240 V |
| Mounting parts | F-MQ (round body), F-ACT (tie-rod) |
Drop it in series with a small relay coil on a bench rig - two conductors back to the control panel, and the relay picks up at end of stroke.
On a university test fixture, the 2-wire output lights an indicator lamp when the pneumatic actuator reaches its home position.
For a one-off machine where the panel is DC and wiring must stay minimal, the solid-state body gives contactless piston detection without a connector.
This variant suits a plain DC circuit where two conductors are all the wiring budget allows: the 2-wire electronic output sits in series with the load like a mechanical contact. Prefer a discrete NPN or PNP signal for a PLC? Move to a 3-wire DMS. Need AC tolerance? A reed CMS covers 5-240 V AC/DC but uses a wearing mechanical contact. Token C12 is an undocumented connection code, so we confirm it from the datasheet rather than guess. The G profile must match the cylinder groove and the cylinder must carry the magnet option.
Quick checklist
Use the F-MQ bracket on round-body cylinders and F-ACT on tie-rod cylinders where there is no groove to seat the switch. Both are ordered separately from the switch. Switching distance and mounting dimensions come from the factory datasheet — ask us for the sheet that matches your cylinder.
It is an electronic (solid-state) switch with a 2-wire output, a supply range of 10-28 V DC, and IP64 protection in the general version. C12 is a connection code we do not have documented, so we confirm the exact wiring from the datasheet on request.
Only on AirTAC cylinders that carry the built-in magnet option - without a magnetic piston there is nothing to sense. The G profile must also match your cylinder's sensor groove, and the extra S in the code is a factory variant we will verify from the datasheet before you order.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, your cylinder model (so we can confirm the profile fit) and the destination. We confirm price, availability and lead time — usually within 7-8 hours.