Fido is an Raspberry Pi–based temperature monitoring system designed to send SMS alerts when temperature thresholds are exceeded. The project provides a setup wizard, documentation, and tools to facilitate configuration. It supports both WiFi and cellular models, catering to different deployment environments. The WiFi model operates within 100 feet of an internet source and is expandable up to a mile using a WiFi bridge. The cellular model runs on battery power for weeks and sends text messages wherever there is cellphone reception. While the repository offers essential setup tools, detailed information on sensor specifications and communication protocols is limited. Fido’s potential applications in agriculture include monitoring greenhouse temperatures, managing cold storage, and detecting temperature fluctuations in various settings.