What are examples of IoT?
27 concrete IoT examples grouped by setting, each with what it senses, how it connects and what it decides, plus the four types of IoT explained.
Photo: Irina Iriser / Unsplash
After reading this article you will be able to:
- Recognize common IoT systems at home, in healthcare, cities, factories, energy, farms, logistics and retail
- Break any IoT example into what it senses, how it connects and what decision it drives
- Explain the consumer, commercial, industrial and infrastructure grouping and where it falls short
On this page
- What turns a connected object into an IoT example?
- Which IoT examples are found at home and in healthcare?
- Which IoT examples are found in cities and buildings?
- Which IoT examples are found in factories and the energy system?
- Which IoT examples are found on farms, in logistics and in retail?
- What are the four types of IoT?
- Where to go next
Examples of IoT include a thermostat that learns when a house is empty, a glucose sensor that alerts a phone before blood sugar drops too low, a parking sensor that tells drivers which bays are free, a vibration sensor that warns of a failing pump bearing, and a temperature logger that proves a vaccine shipment stayed cold. What they share is a loop: a device measures something physical, sends it over a network, and software turns it into a decision or an action.
The list below gives 27 real uses grouped by setting. Each one is reduced to one sentence covering three things: what is sensed, how the data travels, and what decision it drives. The same breakdown works for any IoT product you meet.
What turns a connected object into an IoT example?
An object counts as IoT when it does a physical job, senses or acts on the world, and exchanges data with software elsewhere. The definition guide covers the edge cases. In practice the useful questions are the three used below. What is measured, and how often? Which network carries it: a short-range radio to a hub, Wi-Fi, a long-range network such as LoRaWAN or cellular NB-IoT? And who or what acts on the result: a person reading an alert, a rule on a gateway, or a command sent back to an actuator? The sensor-to-cloud guide follows one reading through every hop.
Which IoT examples are found at home and in healthcare?
Home
- Smart thermostat. It senses room temperature and occupancy, connects over Wi-Fi to a cloud service, and shifts the heating schedule when nobody is home.
- Water leak sensor. A probe under a sink or washing machine detects water, reports over Zigbee or Thread to a hub, and triggers a phone alert or closes a motorized valve.
- Smart lock. It senses door position and user credentials, talks Bluetooth LE to a phone or Thread to a hub, and locks or unlocks on a schedule or a remote command; Matter lets one lock work across several ecosystems.
- Video doorbell. A camera and motion sensor send over Wi-Fi to an app, and an on-device or cloud model decides whether the motion is a person worth a notification.
Health
- Continuous glucose monitor. A sensor worn on the skin measures glucose in tissue fluid, sends readings over Bluetooth LE to a phone or reader, and alerts the wearer to highs and lows.
- Connected blood pressure cuff. In remote patient monitoring, readings taken at home go through a phone or cellular hub to a clinic dashboard, which flags patients whose trend needs a call.
- Hospital asset tags. Badges on infusion pumps and wheelchairs are located by Bluetooth LE or ultrasound receivers in the ceiling, so staff stop searching wards for equipment.
The smart home guide and the healthcare guide cover both settings in more depth.
Which IoT examples are found in cities and buildings?
- Parking bay sensor. A magnetometer or radar under each bay detects a parked car, reports over LoRaWAN or NB-IoT, and feeds a guidance app and enforcement teams (smart parking).
- Networked streetlight. A controller on each pole meters energy and detects lamp failures, connects over a low-power radio network, and dims lights at quiet hours or opens a repair ticket.
- Waste bin fill sensor. An ultrasonic sensor under the lid measures fill level, reports a few times a day over a low-power network, and lets the city plan collection routes around full bins instead of fixed rounds.
- Air quality station. Particulate and gas sensors report over cellular to a public dashboard, which informs pollution alerts and traffic measures (environmental monitoring).
- Office ventilation control. CO2 and occupancy sensors feed the building automation system over BACnet or a wireless link, which raises or lowers fresh-air flow to match the people actually in the room.
The smart cities guide explains how these share infrastructure.
Which IoT examples are found in factories and the energy system?
Industry
- Pump vibration sensor. A battery-powered accelerometer on the bearing housing sends features over a wireless link to a gateway, and a trend or model flags bearing wear weeks before failure (condition monitoring).
- Machine status feed. Cycle counts and stop reasons are read from the PLC over OPC UA or Modbus, and a dashboard computes OEE so supervisors see which line loses the most time.
- Compressed air monitoring. Flow and pressure sensors on the air network report to an energy dashboard, which exposes leaks running overnight when production is stopped.
Energy
- Smart meter. A smart meter records consumption at short intervals, sends it over cellular, power-line or radio mesh links to the utility, and enables time-of-use billing and outage detection without a meter reader.
- Solar inverter monitoring. The inverter reports output per string over Wi-Fi or cellular, and the installer’s software flags a panel string that produces less than its neighbors.
- Home battery and EV charger. Both report state of charge and power to an aggregator, which shifts charging away from peak hours as part of a demand response program.
The industrial IoT guide and the energy guide go further, and predictive maintenance explains how the pump example grows into a model.
Which IoT examples are found on farms, in logistics and in retail?
Farm
- Soil moisture probe. Sensors at several depths report over LoRaWAN to a farm gateway, and irrigation runs only on the blocks that need water (precision agriculture).
- Livestock collar. An accelerometer tracks activity and rumination, sends summaries to a barn receiver, and alerts the farmer to cows in heat or falling ill.
- Frost alarm. A field weather station measures air temperature near the crop and sends a text early enough to start frost protection.
Logistics
- Cold chain logger. A temperature sensor travels with pharmaceuticals or food, uploads over cellular or at a Bluetooth reader, and records any excursion that decides whether the goods are released (cold chain monitoring).
- Container tracker. A GNSS receiver with an LTE-M, NB-IoT or satellite modem reports position and door openings, so shippers see delays and tampering.
- Fleet telematics. A box on the vehicle reads location, speed and engine data, sends it over cellular, and drives route planning, maintenance and driver coaching (telematics).
Retail
- Electronic shelf labels. Battery-powered price displays receive updates over a radio link from ceiling access points, so prices change across a store without staff relabeling shelves; Bluetooth LE added a mode designed for them.
- Refrigerator monitoring. Probes in chillers and freezers log temperature to a cloud service, which keeps the food safety record and alerts staff before stock spoils.
- People counter. A sensor over the entrance counts visitors, and the store uses the counts to schedule staff and compare footfall with sales (smart retail).
See the agriculture and logistics guides for the details.
What are the four types of IoT?
The four types usually listed are consumer, commercial, industrial and infrastructure IoT. The grouping is a teaching convention found in textbooks, encyclopedia entries and vendor material. No standards body defines it, and other sources use three groups (dropping infrastructure) or add healthcare, military or agriculture as types of their own. It sorts systems by who owns and pays for them, not by technology.
| Type | Who runs it | Examples from this page |
|---|---|---|
| Consumer | Households and individuals | Thermostat, leak sensor, smart lock, glucose monitor |
| Commercial | Businesses outside heavy industry: offices, shops, hospitals, hotels | Ventilation control, asset tags, shelf labels, fridge monitoring |
| Industrial | Factories, process plants, farms, mines | Pump vibration, machine status, soil moisture, livestock collars |
| Infrastructure | Cities, utilities, transport networks | Smart meters, streetlights, parking, waste bins |
The edges blur. A continuous glucose monitor is a consumer device and a medical one; a smart meter sits in a home but belongs to a utility. Use the grouping to organize examples and to see that buyers, budgets and lifetimes differ between groups, not as a technical classification. Industrial IoT is the branch with its own body of practice, and IoT vs IIoT explains where that line falls.
Where to go next
- What is the Internet of Things? gives the definition these examples test.
- How IoT works: from sensor to cloud and back follows one reading through every stage.
- IoT connectivity overview explains why each example uses the network it does.
- IoT architecture: the layers shows the structure all of them share.
Topics: IoT basics, examples, use cases, fundamentals