Data Center Store / Vertiv – Geist – Watchdog 100-P

Vertiv – Geist – Watchdog 100-P


Environmental Monitor, with temperature, humidity and dew-point sensors, one relay contact, capacity to add 8 external sensors (4 RJ12 and 4 Dry Contact/ 0-5V), built-in PoE, US power supply


The Watchdog 100 combines environmental monitoring with remote relay control. The relay output can be tied to alarm settings or triggered manually. The unit comes equipped with an onboard temperature and humidity sensor, two Plug-n-Play sensor ports and four Dry Contact/ 0-5V sensor ports. 

The Watchdog 100 provides comprehensive sensor connection options in a compact solution. It is shipped with rack-mount brackets offering flexibility for installation and wire management. 

Power over Ethernet (PoE) option available. 


Best Suited For:
Banking, Financial and Insurance Broadcast and Entertainment Data Center/Colocation/Hosting Education Government Healthcare Manufacturing Military, Defense, Aerospace and Missile Professional Services Retail and Wholesale Telecom Transportation

Vertiv™ Geist™ Environmental Monitors come with a standard three-year warranty that is automatically extended to five years if the product is registered within 120 days of purchase.

SKU: WATCHDOG 100-P Categories: ,

Additional information

Shipping Weight 3 lbs
Shipping Dimensions 22 × 7 × 3 in


  • On-board temperature, humidity, and dew point sensor.
  • Add additional sensors to expand the monitoring capabilities.
  • Simple to install and configure, requires no special software other than a standard web browser.


  • Protect critical IT infrastructure by strategically monitoring data center, server room and network closet environments.
  • View real time sensor data from a secure web interface and receive alerts via Email, SNMP, or Email-to-SMS.
  • Receive alerts of out-of-range conditions to ensure they are addressed before resulting in downtime.
  • Standard three-year warranty, upgraded to five years with product registration.

Technical Specifications

  • Product Line: Environmental Monitor
  • Power Input: AC 100-240V, 50/60Hz
  • Ports: 2 Plug-n-Play and 4 Dry Contact / 0-5VDC
  • Web User Interface: Yes
  • Notifications: Up to 50 Customizable Alarms with Escalations
  • Configuration Port: RJ45
  • Environmental Sensors: Temperature, Humidity, and Dewpoint
  • Output Relay: 1
  • Inputs: 2 RJ12 Sensor Inputs
  • Networking: Ethernet via RJ45

Product Documents

Vertiv Geist Environmental Monitors Watchdog 100 Data Sheet
Limited Warranty For Geist Products