By CAT Controllers, Inc.



Model # CAT-4000075-R50

Warranty 3 Years inside USA

Alternate Part #'s CAT4000075R50

Product Description


If water is your business, you know that water quality is tantamount to your success. The CAT 4000 puts you in control, providing picture-perfect water quality on-site and remote monitoring via any internet PC in the world. All without the hassle of dealing with telephone lines or modems.

Ten years ago CAT pioneered the use of microprocessor-based technology to provide unprecedented product quality, value and ease of use. Now we have developed affordable wireless technology and internet based monitoring to put you in control like never before.

Simply install the factory-assembled CAT 4000 system and log onto to activate your wireless account and begin monitoring.*  Using your personal website you can view water quality data, print charts and graphs, customize your settings, and receive alarm notifications via email, pager, text messenger or cell phone.

The CAT 4000 is your complete solution for water quality management and monitoring.

Benefits of POOLCOMM Wireless:

  • The CAT 4000 eliminates the costs of installing and maintaining dedicated analog telephone lines.
  • Forget about dealing with modem hassles! Monitor via web browser from any internet PC in the world.
  • Avoid the high cost, faded signals, spotty coverage and inconsistent formats of various cellular carriers.
  • The POOLCOMM program utilizes affordable reflex telemetry technology for unmatched reliability

A Complete Water Quality Solution

  • State of the art microprocessor-based water quality controller with integrated wireless communications
  • 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
  • 3 Year manufactures warranty inside of the USA


Enclosure Type 7" x 7" x 2.3" Glass Filled Polycarbonate
Properties NEMA Type 1, 4, 4X, 6, 12, 13
Flame Resistance UL94-5V (UL 746 C 5)
Display 2 x 20 Character Vacuum Fluorescent
Front Panel UV Resistant Lexan with Embedded Tactile Keys
Button Type Embossed Stainless Steel Tactile Domes
Flow Cell Injection Molded with Integrated Baffles
Flow Sensor Magnetic with Embedded Reed Switch
Backboard CNC Machined & Beveled PVC
Inputs CAT Professional Series pH Sensor
  CAT Professional Series ORP Sensor
CAT Magnetic Flow Sensor
  CAT Rotary Flow Sensor
  Optical pH Tank Level Sensor
  Optical ORP Tank Level Sensor
  Optical Water Level Sensor
  Digital Flow Meter
Auxillary Outputs User Programmable
  Remote Alarm
  pH Acid Feed
  pH Base Feed
  ORP Primary Feed
  ORP Supplemental Feed
  Dechlorination Control
  Level / Flow Sensor #1, #2, or #3
  Water Level Control
  Time-Based Activation
Communications Bi-Directional Wireless
Internet URL
Latency < 2 Minutes per Path
Outbound Format Email, Text Message, Internet
Safety Systems pH Low and High Alarms
  ORP Low and High Alarms
  pH Priority Feed
  pH Overfeed Timeout
  ORP Overfeed Timeout
  Supplemental (Backup) Feed Modes
  Outbound Notifications
Optional Equipment Optical Level Sensors
  Digital Flow Rate Sensor
  Rotary Flow Sensor
  Remote Dome Antenna

Product Specifications

R50 Transceiver, Machined Flowcell & RFS