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      Wdsen Electronic Technology Co., Ltd

      iButton Temperature Loggers

      iButton Hygrochron Temperature/Humidity Logger

      DS1923 iButton Hygrochron Temperature/Humidity Logger with 8KB Data-Log Memory




      The iButton? temperature/humidity logger (DS1923) is a rugged, self-sufficient system that measures temperature and/or humidity and records the result in a protected memory section. The recording is done at a user-defined rate. A total of 8192 8-bit readings or 4096 16-bit readings taken at equidistant intervals ranging from 1s to 273hrs can be stored. In addition to this, there are 512 bytes of SRAM for storing application-specific information and 64 bytes for calibration data. A mission to collect data can be programmed to begin immediately, or after a user-defined delay or after a temperature alarm. Access to the memory and control functions can be password-protected. The DS1923 is configured and communicates with a host-computing device through the serial 1-Wire? protocol, which requires only a single data lead and a ground return. Every DS1923 is factory-lasered with a guaranteed unique 64-bit registration number that allows for absolute traceability. The durable stainless-steel package is highly resistant to environmental hazards such as dirt, moisture, and shock. Accessories permit the DS1923 to be mounted on almost any object, including containers, pallets and bags.

      Key Features

      • High Accuracy, Full-Featured Digital Temperature and Humidity Logger Simplifies Temperature Data Collection and Dissemination of Electronic Temperature Record
        • Digital Hygrometer Measures Humidity with 8-Bit (0.6%RH) or 12-Bit (0.04%RH) Resolution
        • Temperature Accuracy Better Than ±0.5°C from -10°C to +65°C with Software Correction
        • Measures Temperature with 8-Bit (0.5°C) or 11-Bit (0.0625°C) Resolution
        • Operating Range: -20°C to +85°C; 0 to 100% RH (see Safe Operating Range Graph)
        • Automatically Wakes Up, Measures Temperature and/or Humidity, and Stores Values in 8kB of Data-Log Memory in 8-Bit or 16-Bit Format
        • Built-In Capacitive Polymer Humidity Sensor for Humidity Logging
        • Sampling Rate from 1s Up to 273hr
        • Programmable High and Low Trip Points for Temperature and Humidity Alarms
        • Programmable Recording Start Delay After Elapsed Time or Upon a Temperature Alarm Trip Point
        • 512 Bytes of General-Purpose Memory Plus 64 Bytes of Calibration Memory
        • Two-Level Password Protection of All Memory and Configuration Registers
        • Individually Calibrated in a NIST-Traceable Chamber
        • Calibration Coefficients for Temperature and Humidity Factory Programmed Into Nonvolatile (NV) Memory
      • Rugged Construction Survives Harsh Environments
        • Hydrophobic Filter Protects Sensor Against Dust, Dirt, Contaminants, and Water Droplets/ Condensation with IP56 Enclosure Rating
        • CE, FCC, and UL913 Certifications
      • Simple Serial Port Interfaces to Most Microcontrollers for Rapid Data Transfer
        • Communicates to Host with a Single Digital Signal Up to 15.4kbps at Standard Speed or Up to 125kbps in Overdrive Mode Using 1-Wire Protocol
        • Quick Access to Alarmed Devices Through 1-Wire Conditional Search Function


      • Environmental Studies/Monitoring
      • Temperature and Humidity Logging in Food Preparation and Processing
      • Transportation of Temperature- and Humidity-Sensitive Goods, Industrial Production
      • Warehouse Monitoring

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      iButton Hygrochron Temperature Humidity Logger,ds1923,ds1922,ds1921