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Old 10-08-2013, 02:49 AM
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Default Hanna PH/TDS/TEMP Monitor & Sentinel DEC-4 Environmental Controller

I have a couple things for sale that I got for an aquaponics setup that never got used and are still brand new in their boxes. Located just outside Calgary so can bring in to town or ship anywhere.

Hanna PH/TDS/TEMP Monitor
Great for aquariums or hydroponics/aquaponics. This is an accurate industrial grade unit and is built to last.

Adjustable TDS ratio
Adjustable β
Extra-large dual-level backlit LCD
12 VDC power supply
designed for continuous and simultaneous monitoring of pH, TDS, and temperature.

Comes with pH probe, TDS probe, temperature probe, TDS sachet, cleaning solution sachets, 12 VDC adapter, and instructions.


Sentinel DEC-4 environmental controller
Fully digital and can control cooling, heating, humidity and CO2 if needed. Great for maintaining fish room climate or for hydroponics/aquaponics.

Comes with:

New remote combination temperature humidity and light level sensor allows users to take accurate plant-level readings up to 15' away from the DEC-4 base unit.
Heavy gauge #14 AWG cables and wire.
Super-duty 30-amp relays for long life.
Power switch and re-settable 15-amp circuit breaker provides over-current protection.
100% digital Temperature
Easy to use pushbuttons that are simple to understand


Separate Day / Night Cooling setpoints.
Separate Day / Night Heating setpoints.
Separate Day / Night Humidity setpoints.
Minimum / Maximum recall of temperature and humidity readings.
Temperature: Two independent outputs to control cooling and heating with separate Day and Night settings for each.
Humidity: Can either increase or decrease the amount of humidity inside the area with separate Day and Night settings.
CO2 Coordination: Allows for basic coordination of CO2 enrichment with daytime settings, ventilation cycles etc. This allows for increased growth, lower cost of CO2 enrichmetn as well as lower power consumption in your garden.

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controller, humidity, monitor, tds, temperature

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