Rees Scientific offers a USP <797>, USP <800>, and FDA compliant continuous environmental monitoring system. Services include CDC compliant monitoring for vaccines and medications, temperature monitoring from +100 to -196 °C, as well as monitoring of critical equipment in terms of temperature, humidity, differential pressure, and more. User notification options include interactive phone, texts, or e-mail. The system can function as wired, Zigbee wireless, Wi-Fi, or a hybrid.