Vertiv SPS-4 4-Way Splitter for RJ12 External Environmental Sensor

Ensure continuous, actionable environmental monitoring across racks and critical spaces with the Vertiv SPS-4 4-Way Splitter for RJ12 External Environmental Sensor. This compact connector cable expands a single RJ12 sensor port into four separate inputs, letting you deploy multiple temperature, humidity or contact sensors from one rPDU or monitoring module. By broadening sensor coverage you minimize blind spots in server rooms, data centers and surveillance equipment closets—protecting IT, security and physical surveillance assets from climate-related failures.

The SPS-4 is a passive, easy-to-install 4-way RJ12 splitter (Manufacturer Part Number: SPS-4) that works seamlessly with Vertiv environmental sensors and compatible rPDUs, enabling centralized monitoring and faster fault detection. No drivers or configuration are needed—just plug in and start collecting granular environmental data to inform capacity planning and incident response. Ideal for IT managers, integrators and security teams who need reliable, scalable environmental monitoring in PoE and networked deployments. Add the Vertiv SPS-4 to your monitoring strategy to strengthen uptime and safeguard critical infrastructure.

• Expand a single RJ12 sensor port to four sensors for comprehensive rack- and room-level environmental coverage
• Centralize temperature, humidity and contact monitoring to reduce blind spots and prevent downtime
• Simple, passive RJ12 splitter design requires no configuration—quickly deploy in racks, server rooms, or surveillance closets
• Compact, durable connector cable built for reliable, long-term use with Vertiv rPDU and environmental sensors
• Enables proactive infrastructure monitoring and faster response to climate-related alerts for security and critical systems