Mouser Electronics has launched the DS1925 iButton temperature logger from Maxim Integrated.
The DS1925 iButton is a rugged, self-sufficient system that measures temperature and records the result in a protected memory section at a programmable rate. The system is ideal for logging temperatures in food safety, biological sciences, and medical and pharmaceutical product monitoring.
The temperature logger provides long monitoring sessions while maintaining the desired sample rate. Designers can store 122Kbytes of 8bit readings or 61Kbytes of 16bit readings taken at equidistant intervals ranging from five minutes to 273 hours. Additionally, the system offers 512bytes of non-volatile memory for storing application-specific information.
The DS1925 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. Designers can programme the device to begin collecting data immediately, after a delay or after a temperature alarm. The system delivers high accuracy (±0.5°C) over a wide temperature range of -40°C to +85°C.
The device can measure battery life and retain measurements even if the battery life ends before the logger is replaced.
The DS1925 is factory-lasered with a guaranteed unique 64bit registration number that allows for absolute traceability. The durable stainless-steel 17.35mm × 5.89mm package is highly resistant to environmental hazards such as dirt, moisture and shock.
Also available from Mouser, the DS1925EVKIT Thermochron iButton starter kit includes the basic hardware for quick evaluation of the included iButton device. The easy setup process includes free downloadable 1-Wire drivers and the OneWireViewer demonstration software to communicate easily with the iButton device through a PC’s USB port.
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