Water Quality

6 Downloads 10 Views v1.0 10.05 MB 4.1+

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(10.05 MB)

Editor's Overview

Water Quality is a science & education application developed by hc51t, packaged as a single Android APK of version 1.0 weighing in at 10.05 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.

Install Checklist

Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
File size is a light 10.05 MB, so it installs quickly even on modest connections.
This build is signed by "hc51t" — always verify the developer name matches what's listed on the app's official store page before installing an update.
After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.

About this app

An open-source Android app for the BLE-YC01 Bluetooth water quality tester. Connects via BLE to read real-time sensor data and track water quality over time — ideal for swimming pools and hot tubs.

Features

* Live dashboard with real-time readings for pH, ORP, EC, TDS, Free Chlorine, and Temperature
* Battery status displayed in the navigation bar
* Percentage change shown on each parameter card based on recent history
* Temperature chart on the dashboard (last 5 hours)
* Pool and hot tub reference lines on all charts (ideal ranges for pH, ORP, Chlorine, TDS, Temperature)
* History screen with time-series charts for all parameters (5h, 10h, 2d, 7d, 14d)
* Configurable poll interval (default 4 min, max ~5 min before device auto-off)
* Configurable save interval for persisting readings to local database
* Temperature alert with notification when a target temperature is reached
* Auto-reconnect to the last paired device on app launch
* All data stays on your device (Room database) — no cloud, no tracking

Supported Device

Model: BLE-YC01 (6-in-1 Bluetooth Water Quality Tester)

This is a white-label device sold under several brand names including Yinmik, Yieryi, Eujgoov, ANKROYU, and RCYAGO. All variants use the same BLE protocol and are compatible with this app. Look for model name BLE-YC01 in the product listing.

Sensors

* pH: 0.1 – 14.0
* ORP: -1200 – +1200 mV
* EC: 0 – 20,000 uS/cm
* TDS: 0 – 9,990 ppm
* Free Chlorine: 0.1 – 4.0 mg/L
* Temperature: 0.1 – 80.0 °C

Device Notes

* Powered by 3x AAA batteries
* The device auto-powers-off after ~5 minutes without an active BLE connection
* Continuous polling drains batteries faster; at the default 4-minute interval, batteries should last several months

Details

Version	v1.0
Size	10.05 MB
Developer	hc51t
Category	Science & Education
Package	com.yinmik.waterquality
Android	4.1+
Last Updated	Oct 29, 2026
Downloads	6

Frequently Asked Questions

Is Water Quality free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.

What Android version does Water Quality require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is Water Quality safe to install?
We link to the exact APK published by hc51t. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.

How do I update Water Quality?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).

Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.

How to Download & Install Water Quality

Tap the Download APK button above and save the file to your device.
Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
Open the downloaded com.yinmik.waterquality.apk file from your Downloads folder.
Tap Install and wait for Android to finish.
Open «Water Quality» by hc51t and grant only the permissions it actually needs.
Revoke the "unknown sources" permission once you are done installing.

Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.