Block diagram of a battery‑free sensor showing antenna/coil to rectifier & cold‑start, energy storage and regulator feeding a sensor/MCU, and wireless communication output.

Inside a Battery‑Free Sensor: Power Path, Storage, and Duty Cycling

Battery‑free sensor design: power path, storage sizing, and duty‑cycling—plus UHF RFID, BLE burst, and NFC tap‑to‑measure patterns that actually work.

The Rise of Zero‑Maintenance Sensors: A Game Changer for Industry

Zero‑maintenance sensing is transforming industrial IoT—but it isn’t a single technology. It’s a strategy built around choosing the right architecture for the environment: battery‑free when a reader can reach the sensor, battery‑powered when autonomous updates are needed, and wired when continuous real‑time data is essential. With battery‑free sensing now scaling rapidly—from USD 73.2M in 2025 to a projected USD 512.8M by 2035—industries are adopting long‑life, low‑touch monitoring across data centers, logistics, and civil infrastructure. The real shift isn’t eliminating batteries everywhere; it’s eliminating unnecessary maintenance while keeping sensing reliable, sustainable, and scalable.

data center aisle with a RAIN RFID reader powering a battery‑free UHF sensor tag

What “Battery‑Free” Really Means in IoT — Clearing the Confusion

“Battery‑free” doesn’t mean “no energy.” It means sensors harvest energy on demand (often from sub‑1 GHz RF) and buffer it (e.g., in capacitors/supercapacitors) to take a measurement and backscatter the data. That subtle difference is what makes deployments practical, compliant, and maintenance‑free.

Pharma battery free tampering

Automating with Insight: Battery-Free Switch Monitors for Smarter Processes

Visibility Is the First Step to Automation Switches are everywhere—light controls, safety interlocks, mechanical locks in warehouses. Yet in many industrial environments, we still rely on manual checks to know whether a switch is open or closed. At Kliskatek, we believe automation begins with visibility. That’s why we’re introducing battery-free RFID switch monitors—a simple, scalable … Read more