Temperature & Humidity Sensor

Temperature and Humidity Sensor

Core Selling Tags

Dual‑mode WIFI/RS485 communication, standard Modbus protocol, OLED high‑definition display, offline data resume transmission, EMC industrial certification, full‑dimensional ODM/OEM customization

Product Overview

Traditional factories, computer rooms, power distribution rooms, and warehouses rely on scheduled manual inspection to record temperature and humidity, which cannot realize 24‑hour real‑time collection of environmental temperature and humidity changes. Excessive environmental temperature and humidity will trigger multiple risks: high temperature accelerates aging and short‑circuit of servers and power distribution cabinets; low temperature causes equipment operation failures; high‑humidity environment results in electric leakage due to damp circuits and corrosion of metal cabinets; low humidity is prone to static electricity that breaks down precision components, bringing irreversible losses to equipment operation‑maintenance and material storage.

The temperature‑humidity sensor is environmental‑monitoring hardware developed for the Industrial Internet of Things. Equipped with high‑precision temperature‑humidity sensing probes, it can continuously collect ambient temperature and humidity values around‑the‑clock, featuring fast response, small measurement error and strong long‑term operation stability. The device is equipped with dual‑mode WIFI and RS485 by default, with 4G available for custom configuration. It supports mainstream industrial and IoT protocols such as Modbus and MQTT, enabling seamless connection with various third‑party industrial‑control systems, configuration software and monitoring platforms. It is not locked to a proprietary backend and meets networking and docking requirements for projects of different scales.

Fitted with a high‑definition OLED display screen, the device allows on‑site real‑time viewing of temperature‑humidity readings, equipment operating status, alarm thresholds and other information. A built‑in buzzer supports local over‑limit alarms. With large‑capacity local storage, it automatically caches data upon network disconnection and resumes data transmission after communication recovery to completely avoid data loss. The full series adopts industrial‑grade wall‑mount housing with excellent protection performance and has passed EMC Electromagnetic Compatibility Certification. It can operate stably under complex working conditions including high‑low temperature, high humidity and strong electromagnetic interference.

The HS‑HJ series covers multiple sub‑models with diverse configurations: built‑in probe, external extension probe and wide‑temperature probe, adapting to different monitoring scenarios. The full product line supports full‑dimensional ODM and OEM customization to flexibly satisfy personalized delivery requirements of various projects.

Core Product Advantages

1. High‑precision Sensing Unit, Stable Measurement & Fast Response
   It adopts imported high‑quality capacitive temperature‑humidity probes. The default temperature accuracy is ±0.2℃ and humidity accuracy ±2% RH; higher‑precision specifications can be customized on request. It delivers fast temperature response without data lag or drift. Sensing performance will not degrade under long‑term high‑low‑temperature and high‑humidity conditions, supporting uninterrupted year‑round continuous data collection. The extended wide‑temperature model covers ‑40℃~125℃ to meet measurement demands for extreme industrial environments.
   
2. Standardized Dual‑mode Communication for Flexible Third‑party Platform Integration
   Dual‑mode WIFI and RS485 are standard; 4G can be customized. The RS485 interface complies with Modbus‑RTU protocol and can be directly connected to PLCs, industrial meters, HMI and other industrial devices. Bus networking is supported with multiple sensors paralleled on one single bus. WIFI supports universal protocols Modbus‑TCP and MQTT for flexible connection to third‑party monitoring platforms and data middle‑platforms. The device supports remote parameter configuration, real‑time data reporting and trigger‑driven alarm upload, with flexible networking and wide adaptability.
   
3. High‑definition Display + Local Alarms for Convenient On‑site O&M
   Equipped with a large‑size OLED screen with big fonts, it displays real‑time temperature‑humidity values, device power status, network connection, operation mode and alarm thresholds for intuitive on‑site reading. A built‑in buzzer automatically triggers sound‑light alarms when temperature or humidity exceeds preset thresholds. Alarms can be quickly enabled or disabled via physical keys. Basic operation‑maintenance and parameter checking can be completed on‑site without relying on backend systems.
   
4. Offline Data Storage: No Data Loss During Network Outage
   Built‑in large‑capacity local storage with configurable recording cycle, holding up to 130 000 sets of historical data. When communication with host or platform is interrupted, collected data will be cached automatically; historical data will be supplementary‑uploaded once communication is restored to guarantee data integrity. Data can also be exported to PC via USB in Excel, TXT, PDF formats for subsequent data analysis and report generation.
   
5. Industrial‑grade Hardware Protection for Complex Working Conditions
   High‑density industrial wall‑mount housing with sealed core unit adapts to harsh environments with humidity, dust, high and low temperature. The circuit board integrates dedicated anti‑electromagnetic‑interference modules, and the whole device passes EMC certification. In strong‑EMI sites such as substations, high‑frequency‑inverter computer rooms and dense power‑distribution‑cabinet areas, measurement data remains stable without value jumping or communication breakdown. It supports wide‑range DC power supply and optional built‑in lithium‑battery power supply to fit diverse on‑site power conditions.
   
6. Full‑dimensional Customization to Meet Diversified Project Requirements
   Full‑range ODM/OEM services are available. Customizable items include housing appearance, silk‑screen LOGO and neutral packaging. Hardware parameters such as measuring range, sensitivity, alarm threshold and reporting cycle can be adjusted. Secondary development for communication protocols, data formats and interface functions is supported. Both small‑batch and mass‑volume orders are acceptable to satisfy customized demands across various industries and customers.
   

Communication & Integration Capabilities

This device is a pure hardware data‑acquisition terminal without binding restrictions of proprietary cloud platforms or APPs. It focuses on data collection and standardized transmission to satisfy third‑party system docking requirements for various projects.

• Industrial‑site Integration: The RS485 interface follows Modbus‑RTU with CRC check. It can be directly connected to mainstream PLC, KingView, ForceControl and other configuration software and integrated into existing industrial automatic‑control systems.
  
• IoT Platform Integration: WIFI/4G supports Modbus‑TCP and MQTT protocols for flexible connection to customer‑owned monitoring platforms, industry cloud platforms and data middle‑platforms. Data format and reporting cycle can be adjusted on demand.
  
• Data Transmission: Supports active real‑time data reporting and trigger‑based alarm upload. Device operating status, sampled values and abnormal alarms can be fully synchronized to connected systems.
  
• Expandability: Custom protocol adaptation and data‑format modification are available. Complete protocol documents and technical support are provided for various customized integration requirements.
  

Application Scenarios

• Power Industry: High‑low‑voltage power distribution rooms, substation computer rooms, cable interlayers, power energy‑storage cabins
  
• Data Communication: IDC data centers, communication base‑station computer rooms, UPS rooms, server cabinet zones
  
• Industrial Manufacturing: Production workshops, constant‑temperature‑humidity laboratories, dust‑free workshops, raw‑material processing plants
  
• Warehousing & Logistics: Constant‑temperature warehouses, medicinal‑material archives, precision‑instrument storehouses, grain reserve depots
  
• Commercial Buildings: Office‑building computer rooms, shopping‑mall equipment rooms, hotel basements, central‑air‑conditioner machine rooms
  
• Public Infrastructure: Archives, libraries, hospital computer rooms, metro‑equipment control rooms