Product Family
Smart Passive Sensor Tags - Moisture
ON Semiconductor’s moisture sensing family of Smart Passive Sensors are UHF RFID wireless sensors that allow the passive sensing of moisture in a variety of applications where size and accessibility is at a premium.
Smart Passive Sensor Tags - Temperature
ON Semiconductor’s temperature sensing family of Smart Passive Sensors are UHF RFID wireless sensors that allow the passive sensing of temperature in a variety of applications where size and accessibility is at a premium.
UHF Antenna for Smart Passive Sensors
SPSPRDA2-P is an elliptically polarized, planar UHF antenna with a RP-SMA jack termination.
SPS UHF Reader Hub
The SPSPRDR1-8 UHF SPS Reader is designed to enable optimized system performance for applications using ON Semiconductor Smart Passive Sensors.
Videos
Introduction to Smart Passive Sensors
Smart Passive Sensors are used to sense, collect, transmit, and aggregate data in digital farming, industrial construction, cold chain tracking, predictive maintenance and many more applications. Join us for a quick introduction to smart passive sensor technology.
Turnkey Solution for Data Sensing and Collection
Providing a complete turnkey solution for Cloud Computing, Industrial, Healthcare, Livestock, Transportation, and Automotive applications, Smart Passive Sensors by ON Semiconductor provide a battery-free, wireless solution for Data Sensing and Collection.
How to Wirelessly Temperature Monitor Data Centers
As data centers become larger and larger, the amount of power required for cooling server racks becomes substantial. Check out an inexpensive solution to monitor inlet temperatures inside the server racks here.
How to Wirelessly Temperature Monitor High-Power Switchgear
Monitoring temperature on connections inside high power switchgear is critical to identify high resistance points and schedule equipment maintenance before catastrophic failure. Learn about a solution for safely and quickly monitoring power switch gear here.
How to Temperature Track Packages
Having large temperature excursions while transporting products with a short shelf life can contribute to a quarter or more of food products spoiling. Join in our webcast discussion of how to alleviate this issue by temperature tracking packages.
Moisture Sensing for Smart Agriculture
As data centers become larger and larger, the amount of power required for cooling server racks becomes substantial. Check out an inexpensive solution to monitor inlet temperatures inside the server racks here.
Product Resources

Application Note
SPSPRDR1-8 Remote Update Guide
ON Semiconductor Battery Free Wireless Sensor tags powered by a Magnus−S integrated circuit (IC) family of sensing RFID chips are fully compliant with the EPC Generation−2 UHF RFID but can most effectively utilize existing reader hardware after the firmware and API have been optimized for sensing. This note guides through the process of updating the reader with the latest firmware adding additional support and functionalities.

Application Note
Data Center Environmental Monitoring Using Smart Passive Sensors
Sensor applications in a data center fall into two main categories: sensors inside the rack and sensors outside the rack. This application note covers both inside and outside the rack sensors, as well as providing further detail on temperature sensors for data centers.

Application Note
Battery Free Wireless Sensor Measurements
ON Semiconductor’s Battery Free Wireless Sensor tags powered by a Magnus−S integrated circuit (IC) produce a Sensor Code which gives information about the sensor tag’s environment. To maximize the precision of sensor measurements, the user should understand and account for effects related to the reader transmission frequency and the amount of power received by the sensor tag. This note describes those effects and discusses strategies for addressing them.

Application Note
SPSDEVK1-PCB: Getting Started Guide
The SPSDEVK1 Predictive Maintenance Turnkey Solution kit enables fast installation of full Smart Passive Sensor systems. ON Semiconductor has developed an application specifically for reading Smart Passive Sensors that unlocks the full functionality of the tags. This is done by automatically detecting the type of tag and reading back sensor data over time graphically.

White Paper
Moisture Intrusion Detection System: “Solving Water Leak Inspection Challenges on Vehicle Assembly Lines”
“Water Leaks” have plagued the auto industry for years. About 3% of new vehicles leave the factory with leaks large enough to cause mold growth and damage to expensive electronic components. Catching leaks at the factory requires a new approach to leak detection. Since getting to the leak areas is challenging, what’s needed are water sensors located in these locations, under the carpet and in the thin spaces between plastic panels and door moldings.

Blog
Battery-Free Wireless Sensing for Smart Agriculture
ON Semiconductor’s moisture sensing family of Battery-Free Wireless Sensors are UHF RFID wireless sensors that allow the passive sensing of moisture in a variety of applications where size and accessibility is at a premium. Originally released to detect water leaks during vehicle production, the small footprint of these wireless sensors allows them to be used in a variety of different IoT applications and across industries, one example would the future of agriculture and smart farming.
Blog
Data Center Temperature Monitoring Using Smart Passive Sensor Technology
ON Semiconductor is enabling new sensing possibilities with the world’s first battery-free sensor tag. These sensors can be used to monitor airflow temperature trends that can then be analyzed over time to detect failing equipment as well as optimize cool air flow throughout the entire data center.