
The AirTAC Airtac DMSH Electronic Sensor DMSH-030 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 3 m flying lead. It only works on a cylinder that carries a piston magnet.
DMSH-030 belongs to AirTAC's DMS family of solid-state electronic switches. Because there is no output letter in the code, it is the 2-wire version: it sits in series with your load just like a passive contact and draws its 10-28 V DC supply through that same circuit. The housing is rated IP64 and the 3 m flying lead gives comfortable routing distance. Its job is to detect the piston magnet inside an AirTAC cylinder that was ordered with the magnet option.
A useful difference from a reed switch: with no mechanical contact inside, this electronic unit does not bounce and tolerates fast, repeated cycling over a long service life. The profile letter H is a mounting-fit code that must line up with the groove on your cylinder - share the cylinder series with us and we will confirm the match before purchase.
| Model | Airtac DMSH Electronic Sensor DMSH-030 |
|---|---|
| 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 | 3 m flying lead |
| Supply voltage | 10-28 V DC |
|---|---|
| Protection rating | IP64 |
| Version | Standard version |
| Profile letter | H (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). |
|---|---|
| H | 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. |
| 030 | 3 m flying lead. 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 | DMSH · 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) |
A pneumatic gate that diverts cartons on a packaging conveyor signals full-open with this switch, its 3 m lead reaching the panel above the line.
On a bench assembly press, the two-wire contact in series proves the ram cylinder reached bottom stroke before the operator releases the start interlock.
A linear slide carrying a vision camera uses the switch to mark the home position, with the 3 m cable dressed along the machine frame to the controller.
This 3 m lead version suits panels that sit a metre or two from the cylinder. Keep it 2-wire if you simply need to power an indicator or relay; pick a DMS NPN or PNP 3-wire type if a PLC input card needs a clean, polarity-defined signal. Supply is 10-28 V DC and protection is IP64. It only works on a magnet-equipped cylinder, and the H profile has to match the cylinder's sensor groove - we can verify both once you name the series.
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.
Type: electronic (solid-state) magnetic switch. Output: 2-wire. Supply: 10-28 V DC. Protection: IP64 general type. Wiring: 3 m flying lead. It detects the piston magnet of a suitable AirTAC cylinder and nothing else.
Solid-state means no mechanical contact, so there is no contact bounce and the unit handles frequent cycling well. A reed switch trades that for a wider AC/DC voltage range - choose by what your control circuit actually needs.
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.