About This

• 7-in-1 Complete Home & Lab Water Testing ：Simultaneously measures pH, EC, TDS, Salinity, ORP, S.G., and Temp. Highly accurate and versatile, it is tailored for home aquariums, swimming pools, drinking water, and hydroponics, while robust enough for home brewing, food processing, and lab use.
• Phone-Powered Portability (No Batteries Needed)：Perfect for outdoor and remote testing with zero battery anxiety. Simply connect the Black OTG Cable to power the probe directly from your smartphone. (Note: The White OTG Cable is used exclusively for first-time app activation or device reset.)
• Smart Bluetooth & Hands-Free Aquarium Monitoring ：Ideal for fixed environments like fish tanks. Plug the probe into a USB power source, leave it in place, and walk away. Whenever you open the Kactoily App (Tuya) within Bluetooth range, it instantly and automatically reconnects to display real-time data
• Custom Alarm Alerts & Easy Manual Logging :Protect your aquatic ecosystem effortlessly. Set personalized high/low safety thresholds in the app to receive instant visual warnings if parameters drift. Easily log and save individual test records manually to track water changes over time.
• Wall Mount Setup & Complete Calibration Kit : Features a wall-mount bracket and a floating foam ring for hands-free testing in deep water or fixed tanks. Includes both pH and ORP calibration powders for long-term accuracy. The storage cap features a built-in moisturizing sponge to keep the probe responsive (rehydrate with pure water as needed).