Overview

Tech specs

Manuals

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Discover the KH keeper Plus

choose the best option for controlling aquarium parameters

The latest product from Reef Factory that makes every marine aquarist’s life easier.
Products from our KH keeper line meet the highest standards for measuring the KH value in marine aquariums.

The smallest device in the KH keeper family

Small dimensions, convenient management, full automation of measurements. The KH keeper will work wherever space is scarce and compact dimensions are a priority.

KH keeper

A slightly bigger brother in the KH keeper family

Larger dimensions provide more space for easier manipulation inside the device. KH keeper Plus has a large laboratory-quality probe and two quiet stepper motors. It can be controlled in an intuitive and user-friendly manner.

KH keeper Plus

Minimalist design
Compact size

Measurement accuracy is 0.01 dKH

The KH keeper measures KH value by sampling water directly from the aquarium.
Readings may take place in daily cycles, every 1-12 hours.

Amazing precision and build simplicity

High-quality components and precise control algorithms allow the device to provide extremely accurate KH value readings (with 0.01 accuracy).
If the KH value drops too quickly between the measurements, the device will repeat the test. If the result is confirmed, the user will receive a notification. An aquarist can set a value for the measurement difference. Depending on the user’s preference, the test water can be returned to the aquarium or disposed of.

Maintaining parameters at appropriate levels

The KH keeper measures aquarium water properties and adjusts the liquid dosing processes using a connected dosing pump. This helps keep the KH value at a set level. Soon, this feature will also work with calcium reactors and 3rd party pumps via our Power switcher.

Advanced controls and simplicity of use. Real user-friendly management and configuration.

Advanced options presented in a simple way.

Notifications are sent when the KH value is outside of the set range or when the KH value increases or decreases too quickly.

Actions – interoperability with other Reef Factory devices

Actions make it possible to connect our devices with each other, thus offering a number of new possibilities. Combine KH keeper or KH keeper Plus with Dosing pumps. This will help to keep the KH value at the appropriate level.

IF the KH level is too high or too low

THEN correct it during the next dosing

THEN turn on/off the device plugged to the Power switcher

OR

Dosing pump family

Power switcher

dosing pumps from other companies

Concentrated reagent 1 l and 2.5 l

Reagent mix ratio: 1 l of the reagent / 9 l of the RO water.
Prepared reagent test sample: 5-15ml (with KH value of 8, the prepared reagent consumption is about 8 ml).

1 l of the concentrated reagent is enough for 1,429 tests on average. The cost of a single test is about €0.035.

The Smart Reef system will notify the user when the reagent is running out.

What is the KH parameter?

This is one of the most important parameters in a marine aquarium.

The KH carbonate hardness (alkalinity) is a measure of the acidic capacity of water and the ability to stabilize the pH parameter affecting the corals. A stable KH value means healthy and colorful corals in the aquarium. Rapid changes in the KH value can lead to coral health issues. Corals from the SPS family, especially the acropora, are particularly sensitive to such changes.

No need for a central computer

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All devices operating within the system are equipped with a Wi-Fi module and connect to the system directly.

iOS and Android

The device can be controlled from any place in the world via a phone application or our website.

Wi-Fi connectivity

Without unnecessary cables, the device connects with a home router using the built-in Wi-Fi module.

Smart Reef

The device is ready to be used in Smart Reef – our versatile system designed for comprehensive aquarium management. No expensive central computer is required!

Dimensions and weight of the device	KH keeper	Plus	Pro
Length	90 mm	97 mm	97 mm
Width	106 mm	135 mm	145 mm
Height	210 mm	210 mm	210 mm
Weight	1400 g	1340 g	1500 g

Power specifications	KH Keeper	Plus	Pro
Supply voltage	100-240 V AC 50/60 Hz	100-240 V AC 50/60 Hz	100-240 V AC 50/60 Hz
Power consumption	5 W / 24 W max	5 W / 24 W max	5 W / 24 W max

Package dimensions	KH Keeper	Plus	Pro
Length	365 mm	410 mm	410 mm
Width	210 mm	310 mm	310 mm
Height	105 mm	210 mm	210 mm
Total weight	2500 g	2800 g	3000 g