Water Quality TestingNeed to determine if pH, nitrate or oxygen levels in your pond? We have what you need! We have probes, monitors, controllers, test kits, and thermometers! Keep your pond healthy and successful.
American Marine PINPOINT II Oxygen Monitor PINPOINT II Oxygen Monitor™ will quickly and accurately display a digital readout for dissolved oxygen in either % oxygen or ppm saturation. The measurement range is 00.0-20.0...ONLY$229.99