Quest Controls has been “IoT” before there was “IoT”. Quest has been installing its hardware sensors, monitors, and controls since 1989.


Quest combines hardware, software, and responsive customer service; clients get an unmatched suite meeting today’s requirements.


Quest provides monitoring and control solutions for headends, hubs, OTNs, and data centers that reduce energy costs and reduce visits to remote sites.



Quest provides monitoring and control solutions for substations and remote sites. Our solutions meet the Power Utilities’ Critical Infrastructure Protection (CIP) requirements.


Quest Controls' smart remote monitoring enables quick and effective diagnosis of problems, eliminates false alarms and unnecessary truck rolls, and averts serious problems.


Quest provides optimization and auditing services that ensure maximum and continued energy savings for the entire portfolio of sites.


Quest Controls, Inc. is pleased to announce that the company has received a Patent for its Smart Adaptive Control HVAC Economizer Algorithm.  


Quest provides the engineering, hardware, software, and expertise for a comprehensive solution suitable for aggressive payback requirements.

Enterprise Facility Management

Global Monitoring & Analysis

OspreyFMS® is the premier platform for integrating divergent controls systems into a single, unified interface. This consolidated experience allows users to leverage monitored data for a deeper dive and a smarter analysis. This energy management software has multi-site alarming synergies, energy use predictions, and cost analysis all at your fingertips. OspreyFMS acts as the engine that predicts savings opportunities, pending failures, and anomalies otherwise impossible on a site-by-site basis.

Energy Management Solutions for Remote Critical Infrastructures

RSC 1000 Remote Site Controller

The RSC 1000™ Site Controller with IP connectivity is specifically designed for use in all remote facilities. It provides control & monitoring of the site’s AC Units, Power Meters, Generators, Fuel Cells, Solar Panels and Fuel Tanks. The RSC 1000 includes a touch screen display and direct support for Modbus communication to any compatible device. In a single-box solution, users can maximize their visibility and control into their facility.

Monitoring, Control & Building Management of Remote Sites

 DCIMMonitoring & Alarming of Critical Infrastructure Equipment

The TELSEC MP2 is designed to address the monitoring and alarming requirements of critical infrastructure equipment used in Data Centers (DCIM), Utility, Telecom, Broadband, Commercial/Industrial buildings. The TELSEC MP2 monitors environmental conditions such as temperature, humidity, intrusion, DC power plants, generators, fuel level, energy usage, and other critical systems found in remote cabinets and shelters.

Model 400 HVAC Controller

– New Product Release –

A convenient and reliable controller that provides the necessary redundancy for critical facilities.

The Model 400 is designed to work as a standalone HVAC Control System or in conjunction with the TELSEC® ESB2 Environmental Controller to provide a comprehensive monitoring and control system for Telecom/Broadband facilities. Multiple HVAC units can be grouped by the area they serve to provide lead/lag/standby functionality per zone.

  • Can be configured to control most HVAC systems such as single stage, two stage or heat pump systems.
  • Designed to work with existing HVAC economizer control modules or take direct control of the outside air damper.
  • Supports variable speed control of the supply air fan.
  • Powered from the HVAC’s 24VAC transformers.
  • Additional 24VDC power source supported.
  • Networkable to the ESB2 or any Modbus RTU controller.
  • Works in standalone mode if communications are lost.
  • LCD display for current operating mode
  • and temperature readings.
  • Five button keypad for navigation to other status screens.
  • Default settings and configuration are settable through password protected screens.
  • All settings can be modified remotely through Modbus RTU.
  • Built-in zone temperature for ease of installation.
  • Additional zone sensor can be added for controlling based upon the average or high of the two sensors.

Contact Us

Feel free to contact us at directly using our general contact information listed below.

Quest Controls, Inc.
208 9th Street Dr. West
Palmetto, FL 34221
Toll-Free: 1.800.373.6331
Fax: 941.729.5480


TELSEC® MP1 – Alarm Monitoring

– New Product Release –

Low-cost, low profile, small yet powerful device

The TELSEC MP1 is designed to address the monitoring and alarming requirements of critical infrastructure equipment and facilities for multiple industries such as: data centers (DCIM), telecommunications, cable/broadband, utilities, governmental, industrial, commercial and multi-residential facilities. The compact intuitive system will monitor environmental conditions like temperature, humidity, intrusion, DC power, generators, fuel level, and other critical systems found in remote equipment cabinets, closets, cages and rooms.

The MP1 is a hardware-integrated solution into Quest’s OspreyFMS® enterprise software, providing users a comprehensive view and management of their critical facilities.

TELSEC MP1 Features

  • Six Universal Inputs & Two Form C digital outputs
  • Ethernet communications with support for IPv6, IPv4, HTTP, HTTPS, RADIUS Password Authentication, SSH, Telnet, TL1 and SMTP (Email)
  • SNMP v1, v2c and v3, for sets, gets, traps and informs
  • Compact Package allows for Wall or Rack Shelf Mounting
  • Enable Interrogation of Remote Site from any Alarm or Maintenance Center

TELSEC MP1 Benefits

  • Eliminates downtime by acting as an Early Warning System
  • Reduces visits to Remote Sites
  • Simple to install & program
  • Can be configured through a web browser or upload a config file
  • Real time view of your facility and critical equipment
  • Low cost solution for remote monitoring of your critical facilities

Monitoring, Control & Building Management of Remote Sites

NEW RELEASE! Quest introduces its new TELSEC® ESB2 Monitoring & Control System Featuring Secure Communications & Touch Screen Technology

Quest's new TELSEC ESB2 Monitoring & Control System is designed for use in the Telecommunications, Cable/Broadband and Utilities markets to monitor and control manned and unmanned facilities, such as COs, Headends, Fiber Hubs, Huts, CEVs, OTNs and Substations.

Optimize Operation & Reduce Energy Consumption

Model 200 & 201 Lead/Lag Controllers

Increase Energy Efficiency and Visibility of Your Remote HVACs Quest Controls, Inc. is pleased to offer the Model 200 and 201 Lead/Lag Controller, our latest line of intelligent lead/lag controllers. The Model 200 features factory configured setpoints based on customer requirements, while the Model 201 allows for configuration and setpoint changes through password protected menus. Both models provide precise control over two HVAC systems and offer a wide temperature control window to further optimize for energy savings.

The Model 200 and 201 support HVAC units with built-in economizers along with units that have two stages of mechanical cooling. The controller is compact and easy to install as a replacement for a standard thermostat. Power to the controller is redundantly derived from both HVAC units so the system continues to operate if one of the HVAC units loses power. The 2x16 LCD display shows the current control mode along with reporting the shelter temperature from its built-in temperature sensor.  In addition, the Model 200/201 has separate normally closed contacts for high temperature and low temperature alarming.

Key features:

  • Low cost and easy replacement for ineffective lead/lag controllers.
  • Enables lead/lag HVAC control at sites that currently have separate thermostats.
  • Reduces energy consumption through advanced control sequences.
  • Prevents short cycling of HVAC equipment.
  • Provides site visibility by alarm notification.
  • Prevents deviation from corporate setpoint standards.


Clients like Verizon, AT&T and Cincinnati Bell have been trusting Quest Controls for more than 20 years with their remote monitoring needs.

Quest is the leading supplier of monitoring and control systems for the MSO market including Comcast, TWC, Cox, Charter, Suddenlink and many other MSO’s.

Quest products offer you higher reliability, early detection of critical problems, remote interrogation and full visibility of your substations and remote sites.

Quest has been installing its hardware sensors, monitors, and controls throughout the world since 1989.

Quest Controls provides DCIM, turnkey installation, data management, and ongoing services to ensure savings are generated and critical information from the Data Center is accessible.

The Quest approach delivers upon its promise. Our intelligent and controlled solutions provide proven value to every client we serve.

Quest Controls Energy Management System and Monitoring Service effectively reduce both energy usage and operational costs due to unnecessary service and repair calls.

Utilizing unique algorithms within our OspreyFMS software provides a window into the costs for running each piece of equipment in real-time.

Quest has tailored its services and technology to be affordable and immediately productive for retail customers.

Some of Our Products


Quest provides telecommunications with remote monitoring for power and battery capacity, control of main door access, intelligent lead/lag, control and monitoring of HVAC systems, gas monitoring, telephony equipment monitoring, environmental monitoring, generator monitoring, variable speed heat exchanger control, flow monitoring, and tower lighting monitoring.


OspreyFMS is the premier platform for integrating divergent controls systems into a single, unified interface. This consolidated experience allows users to leverage monitored data for a deeper dive and a smarter analysis. Multi-site alarming synergies, energy use predictions and cost analysis are all at your fingertips. OspreyFMS acts as the engine that predicts savings opportunities, pending failures and anomalies otherwise impossible on a site-by-site basis.


Our COSYS Application and System Controls working along with our enterprise software platform OspreyFMS provides that meaningful context. A suite of analytics reports as well as integrated maps & tools truly provide a complete picture facility health and performance.

QES – Quest Engineering Services

Sophisticated controls technology represents just one facet in the energy savings equation. To achieve optimal performance and to maximize savings takes applied knowledge, attention, and vigilance. The Quest Engineering Services team utilizes established and emerging best practices to carefully review every facet of the equipment and facility operations, with the ultimate goal to create a savings plan to assure immediate and future peak performance.

QNOC - Facility Management

With QNOC services you can be confident that your facility systems and critical equipment are operating at peak performance, employees are supported and your desired customer experience is realized.