SMARTRAC Sensor Patch RFID Wet Inlay (RFMicron Magnus®S2)


Contact Us for Pricing


SMARTRAC Sensor Patch RFID Wet Inlay (RFMicron Magnus®S2)

SMARTRAC’s state-of-the-art SENSOR PATCH broadens the company’s inlay and tag product range for passive sensor inlays. It is specially designed to measure moisture conditions in medical care areas, e.g. geriatric care, long-term medical care and childcare.

The SMARTRAC SENSOR PATCH is a passive UHF inlay equipped with RFMicron’s Magnus®S2 IC. This RFID sensor inlay offers great performance, and accurately detects urine levels in the diaper. The specifi c antenna design acts as a resistor/inductor/capacitor (RLC) tuned circuit to enable an antenna to sense its environment. The antenna converts environmental data into an impedance change, and then the sensor tag IC translates this into a sensor code, as it dynamically matches antenna impedance to die impedance. The sensing information is digitized and wirelessly communicated to off-the-shelf readers using a standard UHF Gen 2 protocol READ command for further processing by caregivers.

The innovative SENSOR PATCH is a disposable, UHF, single-chip sensor inlay solution that offers cost effi ciency, is easy to implement, and works on different textiles, pulps and nonwoven materials. The inlay is attached outside of the diaper to avoid skin irritation. In industrial diaper production, the inlay can be placed between the diaper’s layers to remain invisible to end users.

It is deployable where active or semi-active sensors are not practical, and involves no battery maintenance, costs or problems with product lifetime or recycling. Delivery formats are dry and wet to suit all converting-industry needs, and the inlay complies with all relevant industry standards and strict quality control parameters.

US Data Sheet  SMARTRAC Sensor Patch RFID Wet Inlay (RFMicron Magnus®S2)


EU Data Sheet  SMARTRAC Sensor Patch RFID Wet Inlay (RFMicron Magnus®S2)


Need help selecting the right tag? Check out our tag guide.

Why buy this tag?

Equipped with a specific antenna design that can sense its environment, the SMARTRAC Sensor Patch RFID Wet Inlay accurately detects and measures moisture levels in a wide array of challenging applications including but not limited to geriatric care, long-term medical care and childcare. 


  • Disposable, UHF single-chip sensor moisture-sensing inlay.
  • Easy to implement.
  • Deployable where active or semi-active sensores are not practical.
  • Specific antenna design that acts as a resistor / inductor / capacitor (RLC) tune circuit that enables an antenna to sense its environment.
  • Application areas: geriatic care, medical long-term care, childcare.
  • RFMicron Magnus®S2 IC.
  • Works well on textiles, pulps, and non-woven materials.
  • Functions flawlessly on cardboard, plastics, stone, wood, and construction materials.
  • Ideally suited for metal environments.


Product Details

Air Interface Protocol:
EPC Class 1 Gen 2 v.2.0.0 ISO 18000-6C
Operating Frequency:
FCC Band (860-960 MHz), ETSI Band (860-960 MHz)
IC Type:
RFMicron Magnus®S2
EPC 128 bit, User 144 bit, TID 64 bit
EPC Memory Content:
Not Published
Max Read Distance:
Not Published
Applicable Surface Materials:
Textiles, pulps, non-woven materials, cardboard, plastics, stone, wood, construction materials, and metal environments
Tag Form Factor:
Wet Inlay
Tag Materials:
Printable clear PET (Thermal Transfer)
Attachment Method:
RA-2 Adhesive
Dimensions (FCC Band):
100 x 11.62 mm (3.9 x 0.5 in)
Dimensions (ETSI Band):
105 x 11.62 mm (4.1 x 0.5 in)
1 g
Delivery Format (FCC Band):
500 Wet Inlays per Roll
Delivery Format (ETSI Band):
2,000 Wet Inlays per Roll
Operating Temperature:
-40 °C to +85 °C (-40 °F to +185 °F)