What if i am using small quantities of ro water? won’t using only ph down bring it down drastically? since there is no ph up, would it just stay stuck

You can set the drip time on/off settings. The pump is the same used in hospital settings. While ph fluctuations is normal, this product will control it for you. Keep in mind that you can only set it up to add ph up or ph down, not both. My ph tends to naturally drift up, so I have the controller set to add ph down. The volume of the solution it can control is in the product description details.

What is the width of the ph probe?

Hello there! The width of the pH probe is 12 mm in diameter. Cheers!

Is this distributor legit? This item sells for $400 minimum everywhere else. $575 in stores. I need this model.

I had the same concerns as the rest of you. I bought it and totally happy that I did. If paying an extra 150 bucks or more for the same exact product is what gives you piece of mind. Then go spend the extra money. The mindset of you get what you pay for is not always correct. Not when comparing the exact same product at different prices. It’s not like the blue lab ph doser. It isn’t a competitor. It is literally the exact same product. Since most people that use this product is for pot. If you sell the same batch and amount of pot to two different people at two different prices, do you get what you pay for? Or are both people buying the exact same thing, just at a different price.

Bluelab Contph Ph Controller With Monitoring And Dosing Of Solution

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Description

⚡ Take control of your pH game—precision dosing, nonstop monitoring, zero guesswork!

SMART AUTOMATED DOSING - Intuitive on/off dosing cycles with replaceable pump for hassle-free pH adjustments.
ROUND THE CLOCK CONTROL - Continuous 24/7 monitoring with high/low alarms keeps your system perfectly balanced.
TRUSTED INDUSTRY LEADER - Made in New Zealand by Bluelab, backed by a 2-year limited warranty.
PRECISION LAB GRADE MONITORING - Glass probe ensures accurate pH readings for acid or alkaline solutions.
EFFORTLESS CALIBRATION COMPENSATION - Easy two-point calibration plus auto temperature compensation for flawless accuracy.

The CONTPH pH Controller by Bluelab is a professional-grade device designed for precise pH measurement and automated dosing in various solutions. Featuring a lab-quality glass probe, 24/7 monitoring with alarms, easy calibration, and a replaceable peristaltic pump, it ensures optimal conditions for pools, hydroponics, brewing, and more. Manufactured in New Zealand with a 2-year warranty, it’s the trusted choice for serious growers and professionals.

Reviews

J**.

Expensive but worth it

Wish I had this year's ago in my reef tanks lol Great for hydroponics

17.03.2020

S**S

después de un mes, la sonda de ph falló.

30.11.2022

H**D

Worth every penny

Works exactly as described. Super easy to setup. No more checking ph multiple times a day. It’s set it and forget it. Just calibrate when it says to. This item improved my quality of life. It just works. I dump in fresh RO water into the reservoir and the Bluelab ph controller fixes the ph within the hour. Growers, stop wondering if it works. It does. It’s worth the price. Green light doesn’t hurt plants in a dark cycle. I’ve got my system dialed in to 5.8 and that’s where it stays. Love it.

1.03.2021

C**L

Prima

Super

12.05.2026

H**H

Great tool to have.

Definitely makes things easier. Can leave my plants for a couple days and feel safe doing it. For the price I feel like having 2 pumps, 1 for up and 1 for down would be a thing.. but its good for what it is. Good buy.

10.11.2022

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

View all Trustpilot reviews

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

View all Trustpilot reviews

ASIN	B00O9CBYZ0
Brand	Bluelab
Brand Name	Bluelab
Color	Blue
Colour	Blue
Customer Reviews	4.5 out of 5 stars 162 Reviews
Global Trade Identification Number	09421024920678
Item Type Name	pH Controllet
Item Weight	0.99 Pounds
Item weight	0.99 Pounds
Manufacturer	Bluelab Corporation Limited - Import (NZ)
Material	Plastic
Material Type	Plastic
Model	CONTPH
Number of Items	1
Part Number	BLU8004

Bluelab CONTPH pH Controller with Monitoring and Dosing of Solution pH Levels

Description

Specifications

Reviews

Common Questions