Controller & Testing
Aquarium Controllers are a convenient way to keep an eye on the various water parameters in your aquarium.  Monitor allow continuous readings of your aquariumâ??s pH, ORP, salinity and temperature. Digital read outs make it easy to see what your tank parameters are at a momentâ??s notice.

A controller is monitor, too, but it also includes an electrical outlet that can be used to turn on or off components like heaters (for temperature control)
Controller & Testing
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Water Monitor & Test Kits
Purge In Tank AEFW Treatment (16 OZ)
Price$101.65excl. TAX
Sale$75.00excl. TAX
You Save$26.65 (26%)
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PURGE IN TANK AEFW TREATMENT (16 OZ)
 Coral RX Coral Dip Pro
Price$32.10excl. TAX
Sale$27.81excl. TAX
You Save$4.29 (13%)
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Coral RX One Shot Coral Dip
Price$5.35excl. TAX
Sale$4.27excl. TAX
You Save$1.08 (20%)
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HM DIGITAL COM-100 TDS EC Meter
Price$65.00excl. TAX
Sale$50.00excl. TAX
You Save$15.00 (23%)
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HM DIGITAL COM-100 TDS EC Meter
HM Digital DM-2 Commercial In-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy
Price$45.00excl. TAX
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HM Digital DM-2 Commercial In-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy
HM Digital TRM-1 Triple Inline RO/DI TDS Monitor with 1/4 inch T-Fittings
Price$40.00excl. TAX
Sale$33.50excl. TAX
You Save$6.50 (16%)
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HM Digital TRM-1 Triple Inline RO/DI TDS Monitor with 1/4 inch T-Fittings
HM Digital DM-2EC Commercial In-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy
Price$45.00excl. TAX
Sale$39.50excl. TAX
You Save$5.50 (12%)
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HM Digital DM-2EC Commercial In-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy
HM digital SM-1EC In-line Single EC Monitor
Price$45.00excl. TAX
Sale$39.50excl. TAX
You Save$5.50 (12%)
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HM digital SM-1EC In-line Single EC Monitor
Controller & Testing
Apex / GHL to Adpater Jebao RW DC WP Pump
Price$42.80excl. TAX
Sale$39.58excl. TAX
You Save$3.22 (8%)
Average Rating4.73(11)
  • Apex Connector for Jebao DC Pump and RW Pump
  • GHL to Jebao (DIY)