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Product Model

A2D-50 Vertiv™ Geist™ Environmental Sensor

Analog to digital converter provides the ability to connect a dry contact, 0-10V, or 4-20mA sensor to a Plug-n-Play sensor port. Includes a 50ft / 15.2m cable. Compatible with Vertiv™ Geist™ rPDUs and Environmental Monitors.

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Best Suited For:
  • Retail and Wholesale
  • Professional Services
  • Telecom
  • Transportation
Warranty: Vertiv™ Geist™ Environmental Sensors come with a standard three-year warranty that is automatically extended to five years if the product is registered within 120 days of purchase.


Protect critical IT infrastructure by strategically monitoring data center, server room and network closet environments. 
Connect a Dry Contact or 0-10V sensor to a Vertiv™ Geist™ Environmental Monitor or rPDU Plug-n-Play sensor port. 
Standard three-year warranty, upgraded to five years with product registration.  


Unit measurements are configurable for different sensor options. 
Daisy-chain capable to simplify installation and cable management. 
Simple installation and configuration on Vertiv™ Geist™ Environmental Monitors and rPDUs. 
Access real time sensor data from the secure web interface and receive alerts via Email, SNMP, or Email-to-SMS.  

Analog to digital converter provides the ability to connect a dry contact or 0-10V sensor to a Plug-n-Play sensor port. Various sensor lengths available.

A2D-50 Vertiv™ Geist™ Environmental Sensor
Technical Specifications
Product Line
Dry contact or 0-10V sensor converter
Cable Length: 50ft / 15.2m
Plug-n-Play Sensor
Environmental Sensors
Dry contact or 0-10V sensor converter

*To see model-specific downloads, you will need to go to the model-specific product page by selecting the model name in the specifications chart above.

Find Your Area Contact

Products Support Contacts

Showing contacts for Virginia, 20149, USA Change
Geist Support - Americas (Rack PDU and Watchdog)
+1 888 630 4445
1777 Yolande Avenue Lincoln Nebraska USA
Product areas of focus: Power Distribution, Monitoring
Vertiv (Customer Service for Albér Products)
+1 954 377 7101
7775 West Oakland Park Blvd Sunrise Florida 33351 USA
Product areas of focus: Monitoring

Frequently Asked Questions

What are the most popular remote sensors?
Remote Temperature for monitoring "hot" spots and other trouble areas. Water Sensor to check for water leaks. Door Contact Sensor to see if a door is open. Remote temperature / air flow / humidity for ensuring the proper environment. Climate monitoring in remote locations.
What is the difference between analog and digital sensors?
Analog sensors connect through the analog inputs. These sensors are either a dry contact or provide a 0 to 5VDC signal. On the Web interface, they show up as "IO" sensors and have a value 0 to 99. Digital sensors connect to digital input ports and communicate through a serial protocol. These are also referred to as Plug-n-Play, Remote, or External sensors. Digital sensors are auto-detected by the climate monitor. Measurements from these devices are graphed and report in the appropriate units.
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