Humidity data recorderIt is an instrument specifically designed to accurately measure and record changes in environmental humidity, playing a critical role in many fields. It has high-precision humidity measurement capability, adopts advanced sensor technology, can keenly capture subtle changes in environmental humidity, has a wide measurement range, and can meet the needs of different scenarios. Whether it is high humidity greenhouses, humid warehouses, or laboratories with strict humidity requirements, it can accurately measure.
This recorder has powerful data recording capabilities. It can automatically record humidity data at preset time intervals, with a large storage capacity and the ability to record continuously for a long time, avoiding the tedious and erroneous manual recording. Some models also support real-time data transmission, uploading data to terminal devices such as computers and mobile phones through wired or wireless means, making it convenient for users to view and analyze anytime and anywhere.
Humidity data recorderIts components mainly include the following core modules:
1. Sensor module
Humidity sensor:
Type: Capacitive (such as HC series), Resistive (such as humidity sensitive resistor), or Thermistor (based on dew point principle).
Function: Convert environmental humidity into electrical signals (such as voltage, resistance, or frequency changes).
Features: High precision, fast response (in seconds), good long-term stability, and some models can simultaneously detect temperature.
Temperature sensor (optional):
Integrated design: Some recorders have built-in temperature sensors (such as NTC thermistors or DS18B20) for compensating humidity measurements or separately recording temperature data.
2. Signal processing and control unit
Microprocessor (MCU):
Function: Control data collection frequency, process sensor signals (such as amplification, filtering, analog-to-digital conversion), and execute user set parameters (such as alarm threshold, recording interval).
Core chip: commonly used low-power microcontrollers (such as STM32, ESP32) or dedicated integrated circuits.
A/D converter:
Convert the analog signal output by the sensor into a digital signal to ensure data accuracy.
3. Data storage and communication module
Storage unit:
Type: Built in Flash memory or SD card (expandable storage capacity).
Capacity: Supports tens of thousands to hundreds of thousands of data (depending on storage format and compression technology).
Communication interface:
Common interfaces: USB, RS-232/RS-485, Wi Fi, Bluetooth, 4G/NB IoT (remote transmission).
Function: Transfer data to computers, mobile apps, or cloud platforms such as Alibaba Cloud and AWS.
4. Power Supply and Power Supply System
Power type:
Battery powered: Lithium batteries or AA/AAA dry batteries, with a battery life of several months (depending on sampling frequency).
External power supply: DC 5V/12V (such as solar panels, USB power banks, or mains adapters).
Low power design: using sleep mode or intermittent sampling to extend usage time.
5. Display and interaction unit
display:
Type: LCD screen, OLED screen, or LED indicator light.
Function: Real time display of current humidity, temperature, battery level, alarm status, etc.
Operation buttons:
Used to set parameters (such as recording intervals, alarm thresholds), view historical data, or enter programming mode.
6. Shell and protective structure
Shell material:
Engineering plastic (ABS), waterproof metal (such as stainless steel) or silicone sealed shell, impact resistant and lightweight.
Protection level:
IP65 or above (dustproof and waterproof), some models can withstand extreme temperatures (such as -40 ℃~80 ℃).
7. Additional functional modules
Alarm device:
Sound alarm (buzzer), light indication (LED), or external alarm (such as relay output).
Linkage control interface:
Control external devices such as dehumidifiers, humidifiers, and ventilation systems through relays or PWM signals.
GPS module (optional):
Used in mobile scenarios (such as logistics transportation) to record the association between location information and humidity data.
8. Software and Data Management
Supporting software:
Computer tools: used for data export, analysis (such as generating humidity curves, statistical reports), and equipment calibration.
Mobile APP: supports remote monitoring, real-time data viewing, and alarm push.
Cloud platform:
Data is stored in the cloud, supporting multi device data aggregation, historical comparison, and big data analysis.