Definition
A temperature and humidity sensor is a sensor that reads ambient temperature and relative humidity together. It is used in cold-chain logistics, smart agriculture, smart buildings, data centers, pharmaceutical storage, and health monitoring on an electronic ear tag. Readings go to the cloud platform over 4G, WiFi, or LoRa, and support temperature alarms plus records for agricultural product traceability, HACCP, and the FDA. With smoke detectors and temperature detectors, it is one input to environmental monitoring.
Core Concepts and Technology Types
Temperature & humidity sensors are classified by principle into: Temperature—thermocouple, thermistor, Pt100, digital types (such as DHT, SHT); Humidity—capacitive, resistive, dew point types. Integrated temperature and humidity sensors can output both temperature and relative humidity simultaneously, and some support dew point and absolute humidity calculation. In cold chain logistics scenarios, they need to meet requirements for a wide temperature range, high accuracy, and low power consumption; in electronic ear tag scenarios, body temperature monitoring can be integrated. Data is aggregated via gateways and uploaded to the cloud platform, which can be combined with blockchain for traceable data certification.
Use Cases
In the cold chain they cover cold-chain logistics, pharmaceutical storage, and food processing, and they support agricultural product traceability, HACCP, and FDA records. In agriculture they cover greenhouses, livestock houses, and body temperature on an electronic ear tag. In buildings they cover smart buildings and data centers. In industry they cover smart manufacturing shops and clean rooms. With an electronic fence and multimodal transport, temperature can be followed for the whole trip.
Technical Architecture and Selection Key Points
The system is sensors, a gateway, a cloud platform, and the alarm and display applications. When selecting, look at range and accuracy, the radio and the power draw, fit with the cloud platform and APIs, and whether the record meets HACCP, the FDA, and blockchain evidence. SimtoLink can supply the sensors, the gateway, the cloud platform, and the APIs as one monitoring stack.
Implementation Guidance
Deploying temperature and humidity sensors requires: determining the deployment density according to the type of location, selecting sensors and communication methods, deploying gateways and cloud platforms , configuring alarm rules, and integrating with business systems. In cold chain logistics , multimodal transport scenarios, full coverage and blockchain notarization must be ensured; in agricultural product traceability scenarios, integration with electronic ear tags and HACCP is required. When selecting, focus on: API openness and integration with existing systems.