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The CAT 4000® is a wireless commercial remote water quality controller. The controller provides picture-perfect water quality on-site and remote monitoring via the Internet or web-enabled mobile device from anywhere in the world.
Using the CAT 4000® systems, you can easily log onto PoolComm to activate your wireless account and begin monitoring your water quality. You can view water quality data, print charts, analyze graphs, customize your settings and receive alarm notifications via email or SMS. The CAT 4000® is your complete solution for water quality management and remote monitoring.
- Wireless link to the PoolComm site with extensive North American coverage and 24/7 monitoring
- Incredibly simple to install and operate via simple menus and a bright alphanumeric display
- Compatible with existing chemical feed equipment, so initial investment is minimized
- Comes complete with CAT Professional Series pH and ORP sensors for unsurpassed performance
- Optional Wi-Fi® communications protocol provides users free PoolComm access
- 5-year limited warranty on controller; 2-year limited warranty on sensors
- NSF/ANSI Standard 50 Certified
The CAT 4000® is a wireless commercial remote water quality controller. The controller provides picture-perfect water quality on-site and remote monitoring via the Internet or web-enabled mobile device from anywhere in the world.
Using the CAT 4000® systems, you can easily log onto PoolComm to activate your wireless account and begin monitoring your water quality. You can view water quality data, print charts, analyze graphs, customize your settings and receive alarm notifications via email or SMS. The CAT 4000® is your complete solution for water quality management and remote monitoring.
- Wireless link to the PoolComm site with extensive North American coverage and 24/7 monitoring
- Incredibly simple to install and operate via simple menus and a bright alphanumeric display
- Compatible with existing chemical feed equipment, so initial investment is minimized
- Comes complete with CAT Professional Series pH and ORP sensors for unsurpassed performance
- Optional Wi-Fi® communications protocol provides users free PoolComm access
- 5-year limited warranty on controller; 2-year limited warranty on sensors
- NSF/ANSI Standard 50 Certified
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Technical Specifications

Applications
- Commercial pools
- Aquatic centers
- Water fountains
- Water features
- Splash pads
- Wading pools
- Olympic pools
- Water sanitation centers
- Aquatic theme parks
Manuals
Accessories
Item #AC003
Hayward® Commercial offers a full line of chemical storage and feed equipment to ensure accurate, reliable, and consistent dispensing of chlorine, acid solution, and CO2 for safe water chemistry maintenance
Item #AC004
Hayward® Commercial offers a full line of chemical storage and feed equipment to ensure accurate, reliable, and consistent dispensing of chlorine, acid solution, and CO2 for safe water chemistry maintenance
Item #AC005
Hayward® Commercial offers a full line of chemical storage and feed equipment to ensure accurate, reliable, and consistent dispensing of chlorine, acid solution, and CO2 for safe water chemistry maintenance
Item #AC006
Hayward® Commercial offers a full line of chemical storage and feed equipment to ensure accurate, reliable, and consistent dispensing of chlorine, acid solution, and CO2 for safe water chemistry maintenance
Item #AC015
Hayward® Commercial offers a full line of chemical storage and feed equipment to ensure accurate, reliable, and consistent dispensing of chlorine, acid solution, and CO2 for safe water chemistry maintenance
Item #AC018
Hayward® Commercial offers a full line of chemical storage and feed equipment to ensure accurate, reliable, and consistent dispensing of chlorine, acid solution, and CO2 for safe water chemistry maintenance
Item #AC025
Hayward® Commercial offers a full line of chemical storage and feed equipment to ensure accurate, reliable, and consistent dispensing of chlorine, acid solution, and CO2 for safe water chemistry maintenance
Item #AC030
Hayward® Commercial offers a full line of chemical storage and feed equipment to ensure accurate, reliable, and consistent dispensing of chlorine, acid solution, and CO2 for safe water chemistry maintenance
Item #AC063
Hayward® Commercial offers a variety of Flow Cells, Flow Sensors, PVC Backboards, valves, fittings, and tubing to facilitate neat, professional system installation.
Item #AC075
Hayward® Commercial offers a variety of Flow Cells, Flow Sensors, PVC Backboards, valves, fittings, and tubing to facilitate neat, professional system installation.
Item #AC315
Interface cables, power cords, and replacement fuses for Hayward® Commercial controllers.
Item #DF010
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #RA015
Thermal Printers and Communications Accessories including remote antennas and extension cables.
Item #DF015-1-5
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #LS010
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #DF020-2-5
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #LS020
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #DF030-3
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #PRO15-2
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #DF040-4
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #PRO15-10
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #DF060-6
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #PRO25-AU-2
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #DF080-8
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #PRO25-AU-10
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #DF100-10
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #PRO25-2
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #DF120-12
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #PRO25-10
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #PS001
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #PTC15
Hayward® Commercial offers a full line of chemical storage and feed equipment to ensure accurate, reliable, and consistent dispensing of chlorine, acid solution, and CO2 for safe water chemistry maintenance
Item #PTC30
Hayward® Commercial offers a full line of chemical storage and feed equipment to ensure accurate, reliable, and consistent dispensing of chlorine, acid solution, and CO2 for safe water chemistry maintenance
Item #PTCRES
Hayward® Commercial offers a full line of chemical storage and feed equipment to ensure accurate, reliable, and consistent dispensing of chlorine, acid solution, and CO2 for safe water chemistry maintenance
Item #RA024
Thermal Printers and Communications Accessories including remote antennas and extension cables.
Item #RA025
Thermal Printers and Communications Accessories including remote antennas and extension cables.
Item #RA026
Thermal Printers and Communications Accessories including remote antennas and extension cables.
Item #SV015
Hayward® Commercial offers a full line of chemical storage and feed equipment to ensure accurate, reliable, and consistent dispensing of chlorine, acid solution, and CO2 for safe water chemistry maintenance
Item #SV030
Hayward® Commercial offers a full line of chemical storage and feed equipment to ensure accurate, reliable, and consistent dispensing of chlorine, acid solution, and CO2 for safe water chemistry maintenance
Item #WL010
In addition to our Professional Series pH and ORP sensors, Hayward® Commercial offers a full range of compatible sensors for monitoring and/or controlling flow, pressure, temperature, water level, and tank level.
Item #RFK-C4000-WIFI
Existing CAT 4000 and CAT 5000 controller installations can be field upgraded via a Wi-Fi® retrofit kit.
Item #RFK-C4000-CELL
Existing CAT 4000 and CAT 5000 controller installations can be field upgraded via a Wi-Fi® retrofit kit.