What’s the length of the tubing provided?

about 8 inches or so. How long are you needing it to be?

Correct that probes can't be completely submerged? Just the tip can be?

On the Connect version I received, you can fully submerge the probes. However, they come with a suction cup that attaches to the cable to place wherever you want to stick them.

Does this controller work without the connect stick?

Lets clarify a few things.. 1) YES, it will operate perfectly fine without the connect stick, it just wont log any data from the controller nor will you be able to login to the cloud to view the controllers data log. For that to happen, you need a connect USB stick. 2) It does automatically adjust the ph just fine, if a alarm condition is present it will stop dosing, and there are other conditions that will prohibit it from dosing automatically. From the manual: Use ‘mode’ to select the pH controller connect function. ‘Monitor’ mode shows the current solution pH reading. It is the factory default setting. ‘Control’ mode allows the controller to dose pH stock solution to the set values. Dosing will NOT occur when:• The pH controller connect is in ‘monitor’ mode• The pH controller connect is in an alarm state• If the pH controller connect senses dosing is not having an effect on the system (after 15 dose cycles)• The solution temperature is above 50 °C / 122 °F, or below 0 °C / 32 °FAlso, you set your dosing amount, ie, 1 second on dosing, wait a hour, then re-dose if PH level is still not correct. Im not sure what the previous comment is talking about the unit not auto dosing but he may want to read the manual.

Can this be connected to both PH up and Down simultaneously?

No, just one. It cannot handle both up and down at the same time but it can be set to use either one of them. These things rock!

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🌱 Master your grow with precision pH control — because your plants deserve the best!

PRECISION P H CONTROL - Lab-quality glass probe ensures exact acid/alkaline balance for optimal solution health.
SMART AUTOMATED DOSING - Intuitive on-time/off-time dosing cycles with replaceable peristaltic pump for hassle-free adjustments.
TRUSTED INDUSTRY LEADER - Made in New Zealand by Bluelab, backed by a 2-year warranty and proven hydroponic expertise.
USER FRIENDLY CALIBRATION - Easy two-point calibration plus auto temperature compensation for reliable, consistent readings.
ROUND THE CLOCK MONITORING - 24/7 pH tracking with high/low alarms keeps your grow environment perfectly balanced.

The BluelabCONTPHCON pH Controller Connect is a professional-grade device designed for precise pH measurement and automated dosing in hydroponics, brewing, pools, and water treatment. Featuring a lab-quality glass probe, 24/7 monitoring with alarms, easy calibration, and data logging, it ensures optimal solution balance to maximize plant health. Manufactured by Bluelab in New Zealand, it offers reliability and comes with a 2-year limited warranty. (Connect Stick sold separately.)

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Product Dimensions	20.7 x 10.69 x 19.58 cm; 1 kg
Part number	CONTPHCON
Material type	plastic
Power source type	AC/DC
Manufacturer	Bluelab
Item model number	CONTPHCON
ASIN	B00QV852OO

BluelabCONTPHCON pH Controller Connect with Monitoring, Dosing and Data Logging of Solution pH Levels (Connect Stick not Included)

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