DS1921H - High-Resolution Thermochron iButton Devices

Maxim Integrated

Datasheet Details

Digital thermometer measures temperature in 1/8°C increments with ±1°C accuracy.
Built-in real-time clock (RTC) and timer has accuracy of ±2 minutes per month from 0°C to +45°C.
Water resistant or waterproof if placed inside DS9107 iButton® capsule (Exceeds Water Resistant 3 ATM requirements).
Automatically wakes up and measures temperature at user-programmable intervals from 1 to 255 minutes.
Logs consecutive temperature measurements in 2KB of datalog memory.
Reco.

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