AquaWiz KH Controller Gen 4 – Reagent-Free Alkalinity Monitoring
The AquaWiz KH Controller Gen 4 is a next-generation, reagent-free alkalinity monitoring system designed for high-end reef aquariums. Using a precision pH electrode and an advanced reference seawater comparison method, it delivers accurate KH readings without any chemicals, cartridges, or consumables. With fully automated testing, remote monitoring, and optional dosing control, it provides exceptional stability for SPS-dominated and mixed-reef systems.
Key Features & Benefits
100% reagent-free testing – no titrants, cartridges, fluids, or consumables
Real KH measurement using pH differential analysis
Lab-grade pH electrode included
Automated testing every 1–6 hours
Optional automatic alkalinity dosing control
Extremely low maintenance design
Cloud dashboard and mobile app access
Electrode health monitoring built in
Silent operation and compact footprint
Lowest long-term operating cost of any KH controller
How It Works
The AquaWiz KH Controller Gen 4 does not use any reagents or titration fluids. Instead, it uses a dedicated pH electrode to compare your aquarium water with a stable reference seawater sample inside the device. By analyzing the pH behavior of both samples after controlled aeration, the system calculates the alkalinity (KH) with excellent precision—completely reagent-free.
Technical Specifications
Testing Method: Reagent-free pH differential KH analysis
Sensor: High-precision, long-life pH electrode
Testing Interval: Adjustable from 1 to 6 hours
Accuracy: ~±0.05 dKH (typical)
Reference Sample: Stable seawater (often from your tank)
Consumables: None
Connectivity: Cloud dashboard, mobile app, email alerts
Optional Dosing: Supports automatic KH correction via dosing pumps
Power: 24V DC
Pumps: Internal water sampling pump
Size: 7.08” x 7.08” x 7.48”
Data Features: Trend graphs, KH consumption tracking, historical logs
Maintenance: Minimal; inspect tubing and monitor probe health
What’s Included
AquaWiz KH Controller Gen 4 main unit
Lab-grade pH electrode (pre-installed)
Sampling tubing
Power supply
Quick-start guide
Why Choose AquaWiz?
The AquaWiz Gen 4 stands apart from traditional alkalinity controllers by offering accurate KH monitoring with absolutely no reagents. Competing systems require titration fluids, cartridges, or regular consumables, while the AquaWiz operates cost-free with near-zero maintenance. This makes it the most economical and user-friendly KH controller available today.
Usage & Setup
Mount the unit near your sump or cabinet
Fill the internal reference chamber with stable seawater
Place the sampling line in a high-flow sump area
Connect to Wi-Fi using the AquaWiz app
Configure testing intervals and KH target values
Optional: Connect a dosing pump for automatic KH correction
Compatibility
Suitable for all reef aquariums
Ideal for SPS, mixed reefs, LPS, and coral farms
Compatible with major dosing systems (GHL, Apex DOS, Kamoer, Hydros, Jebao, etc.)
Integrates with automation setups via dosing logic
Frequently Asked Questions
Does it use any reagents? No, the system is completely reagent-free.
How does it measure KH? It compares the pH behavior of tank water to a reference seawater sample using a precision pH electrode.
Do I need to replace the reference solution? Rarely. It is not consumed and only needs occasional refreshing.
How often can it test? Every 1 to 6 hours depending on your preference.
Can it automatically dose alkalinity? Yes, when paired with a dosing pump.
What maintenance is required? Periodic tubing inspection and occasional probe care. No fluids or cartridges to replace.
Warranty & Support
1-year manufacturer warranty with cloud diagnostics, email support, and online documentation. Exotic Reef is the exclusive authorized Canadian distributor, and handles all warranty claims in Canada.
