Airtac CMSG Reed Switch Sensor CMSG-100-H
The AirTAC Airtac CMSG Reed Switch Sensor CMSG-100-H is a genuine CMS 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 5-240 V AC/DC with a 10 m flying lead. It only works on a cylinder that carries a piston magnet.
- TechnologyReed (magnetic contact)
- Output2-wire
- Supply voltage5-240 V AC/DC
- ProtectionIP64
- Profile (groove fit)G
- Lead / connector10 m flying lead
- VersionH
- RequiresMagnet-equipped cylinder
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac CMSG Reed Switch Sensor CMSG-100-H
The CMSG-100-H pairs the wide-voltage reed contact of the CMS family with the high-temperature build. The output is a 2-wire mechanical contact that takes 5-240 V AC or DC in either polarity, the housing is rated IP64, and the 10 m flying lead gives you a long, uninterrupted run back to the panel. It signals when the magnet inside an AirTAC cylinder piston arrives at the switch position.
Inside is a sealed reed capsule rather than an electronic circuit, so there is no leakage current to account for, though the contact has a finite mechanical life. The H suffix is what separates this model from the standard CMSG-100 - it is intended for elevated ambient temperatures around heated equipment. Profile G must line up with the sensor groove on your cylinder, so send the cylinder series for a fit confirmation.
Airtac CMSG Reed Switch Sensor CMSG-100-H Technical Specifications
| Model | Airtac CMSG Reed Switch Sensor CMSG-100-H |
|---|---|
| Family | CMS — Reed switch cylinder sensor |
| Technology | Reed (magnetic contact) |
| Output | 2-wire |
| Outputs in this family | 2-wire contact |
| Lead / connector | 10 m flying lead |
| Supply voltage | 5-240 V AC/DC |
|---|---|
| Protection rating | IP64 |
| Version | High-temperature version |
| Profile letter | G (cylinder-groove fit) |
| Profiles in this family | E, G, H, J |
| Detects | Piston magnet ring inside the cylinder |
A reed contact switches a wide window, 5-240 V AC or DC, which is why it suits AC circuits and relay logic. IP64. The CMS range has no RW / IP68 option - that belongs to DMS and EMS. 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.
Model Code: Airtac CMSG Reed Switch Sensor CMSG-100-H
| CMS | Reed switch cylinder sensor — reed (magnetic contact). |
|---|---|
| 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. |
| 100 | 10 m flying lead. 020 / 030 / 050 / 100 are 2 / 3 / 5 / 10 m flying leads; M08 and M12 are M8 / M12 connector versions. |
| H | High-temperature version. On a CMS the suffix -H is the high-temperature version — do not confuse it with the H profile letter. |
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.
Which Family Do You Need?
- DMSElectronic, 2-wire / NPN / PNP, DC
- EMSMini electronic, 2-wire only, DC
- CMSReed contact, 2-wire, 5-240 V AC/DC
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 | CMSG · 2-wire · 5-240 V AC/DC |
|---|---|
| Consider DMS | the solid-state range with NPN / PNP 3-wire outputs (DC only) |
| Consider EMS | the mini 2-wire solid-state switch (DC only) |
| Mounting parts | F-MQ (round body), F-ACT (tie-rod) |
Where the Airtac CMSG Reed Switch Sensor CMSG-100-H Is Used
Drying tunnel exit gate
A powder-coating line monitors the exit-gate cylinder of its curing tunnel, where radiant heat from the tunnel skin exceeds what a general-type sensor tolerates.
Bakery oven damper
The damper cylinder on a deck-oven exhaust sits close to the oven shell; the H build keeps position feedback reliable in that heat.
Shrink tunnel clamp
A packaging line clamps film at the entry of a shrink tunnel and confirms clamp closure from the hot side using this reed switch.
Is the Airtac CMSG Reed Switch Sensor CMSG-100-H the Right Switch?
High heat plus a long cable run is the brief this model answers: hot zones that would shorten a standard switch, and mounting points well away from the controls. For AC or mixed-voltage wiring the reed contact is the straightforward pick; where the load is a fast DC PLC input with millions of cycles, compare a solid-state DMS. Remember the cylinder needs the magnet option, and no AirTAC switch senses anything without it.
Quick checklist
- ✓ Cylinder has a piston magnet
- ✓ Profile letter fits your cylinder groove
- ✓ Output matches the PLC input (2-wire)
- ✓ Supply rail is 5-240 V AC/DC
- ✓ Lead length or M8 / M12 connector
- ✓ High temperature? Use the -H version
Installation & Wiring Notes
- check The cylinder must carry a piston magnet — a plain cylinder cannot be sensed.
- check Slide the switch along the groove to the stop position, then lock it.
- check Keep the supply within 5-240 V AC/DC.
- check A reed contact suits AC or DC; observe the load limits on the datasheet.
- check Keep the lead clear of moving parts; use the RW type where it must flex.
- check Rated IP64 — protect it beyond that rating.
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.
Airtac CMSG Reed Switch Sensor CMSG-100-H FAQ
Reed switch with 2-wire mechanical contact; supply 5-240 V AC or DC; IP64 protection; 10 m flying lead; high-temperature construction indicated by the H code. It requires a magnet-equipped AirTAC cylinder to produce any signal.
No. H on a CMS marks the high-temperature version; -RW on a DMS or EMS is the waterproof, oil-resistant, flex-resistant build with IP68 protection. Choose by environment - heat points to H, washdown or moving cable tracks point to -RW.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC Cylinder Sensors
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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.