Environmental factors such as heat, humidity and humidity pose a serious threat to critical infrastructure. These dangers can be minimized by incorporating a network of environmental sensors to collect data and alert users of potential threats. Adding optional sensors to a Vertiv Geist environmental monitor or rack power distribution unit (rPDU) allows users to observe conditions from a secure web interface and receive alerts via email, SNMP, or email to SMMS. More from the manufacturer. Manufacturer: Vertiv. Manufacturer Part Number: Watchdog 15-P. Brand Name: Geist. Product line: Watchdog. Product model: 15-P. Product name: environmental monitor - Watchdog 15-P. Packaged quantity: 1. Product type: Environmental monitoring system. [Physical characteristics] Height: 1.3 inches. Width: 5.2 inches. Depth: 1.8 inches. [Miscellaneous] Package Contents: Environmental Monitor - Watchdog 15-P US Power Supply Additional Information: Activity LED: 1 Inactive LED: 1 Power over Ethernet (PoE): Yes, power supply compatible with these systems. Input: AC 100-240V, 50/60Hz. Output: DC 6V, 2A: North America (NEMA 5-15P). Internal temperature sensor: -4°F to 185°F /-4.0°C to 85°C. Internal temperature measurement accuracy: +/. -0.5°F Internal humidity sensor: 0% to 100% (20% to 80%) Internal humidity sensor measurement accuracy: +/-3% (+/-2). Dew point measurement range: -35°F to 167°F, +/-4.5°F (-4.0°C to 80°C. and 20 -8 0% RH) Network connection: Ethernet via supported RJ45 network protocols and data access formats: HTTP, HTTPS (SSL/TLS), SMTP, DHCP, ICMP, TCP/IP, HTML (desktop), SNMP v1/v2c, XML, CSV, JSON Reset Button: Yes RJ Connection with Remote Sensor: 2 (Supports up to 4 Sensors) Certification/Agency Approvals: FCC Part 15 Cla