---
product_id: 534173097
title: "WaterGuru Sense S2 Smart Pool Monitor – Digital Pool & Spa Water Tester for Chlorine, pH, CYA & Alkalinity – Wi-Fi Enabled – Includes C5 Cassette, Float Ring & Batteries"
brand: "waterguru"
price: "R13996"
currency: ZAR
in_stock: true
reviews_count: 6
category: "Water Guru"
url: https://www.desertcart.co.za/products/534173097-waterguru-sense-s2-smart-pool-monitor-digital-pool-and-spa
store_origin: ZA
region: South Africa
---

# Wi-Fi enabled for seamless daily updates C5 Cassette lasts 1 month with daily use 5 key water parameters tested automatically WaterGuru Sense S2 Smart Pool Monitor – Digital Pool & Spa Water Tester for Chlorine, pH, CYA & Alkalinity – Wi-Fi Enabled – Includes C5 Cassette, Float Ring & Batteries

**Brand:** waterguru
**Price:** R13996
**Availability:** ✅ In Stock

## Summary

> 💧 Dive into smart pool care — never miss a perfect swim day!

## Quick Answers

- **What is this?** WaterGuru Sense S2 Smart Pool Monitor – Digital Pool & Spa Water Tester for Chlorine, pH, CYA & Alkalinity – Wi-Fi Enabled – Includes C5 Cassette, Float Ring & Batteries by waterguru
- **How much does it cost?** R13996 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/534173097-waterguru-sense-s2-smart-pool-monitor-digital-pool-and-spa)

## Best For

- waterguru enthusiasts

## Why This Product

- Trusted waterguru brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Wi-Fi:** Connects easily to your home network for real-time monitoring wherever you are.
- • **Effortless Pool Mastery:** Drop it in your skimmer and get instant, no-strip water chemistry insights via app.
- • **Smart Chemistry Control:** Daily automated readings of pH, chlorine, alkalinity, CYA & hardness keep your pool perfectly balanced.
- • **Dedicated US-Based Support:** Expert help just a click away to ensure your pool stays swim-ready all season long.
- • **Universal Fit & Flexibility:** Fits most skimmers with optional adapters, making installation hassle-free for any pool setup.

## Overview

The WaterGuru Sense S2 is a Wi-Fi enabled smart pool monitor that provides daily automated testing of five critical water parameters—pH, free chlorine, cyanuric acid, alkalinity, and hardness. Designed for easy installation in most skimmers, it uses replaceable C5 or C2 cassettes for continuous chemical analysis, delivering real-time data and chemical dosing recommendations through a dedicated app. Supported by US-based customer service, it empowers pool owners to maintain crystal-clear, balanced water effortlessly.

## Description

desertcart.com: WaterGuru Sense S2 Smart Pool Monitor – Digital Pool & Spa Water Tester for Chlorine, pH, CYA & Alkalinity – Wi-Fi Enabled – Includes C5 Cassette, Float Ring & Batteries : Patio, Lawn & Garden

Review: Good Chemical Monitoring - It is costly, but it is GREAT to bring up on the phone and see water temp, PH, Alk, Free Chlorine, etc. After entering the Pool Gallons, it also provides recommendation of quantity of chemical to add to bring chemistry into spec. It will provide links to purchase the chemicals from them, but I found purchasing the chemicals from desertcart to be a much better deal. If it eventually fails (hopefully long time from now) I would buy another one.
Review: Not recommended, doesn’t work at all after 6 months - Worked for about 4 months. Then stopped with daily measurements. Gave manual readings for about a month and now won’t give readings at all. The cassette is supposed to last 30 days but it does not. I have them on automatic shipment and have a bunch of useless cassettes. I consulted the help section and done everything suggested to resolve the issues. For a $400 device it’s absolutely ridiculous. I have contacted customer service, will update review.

## Features

- Exclusive Compatibility – The WaterGuru SENSE S2 works exclusively with two cassette options: the C5 Cassette (included with purchase) and the C2 Cassette. The C5 Cassette lasts 1 month with daily measurements, while the C2 Cassette lasts 2 months with daily measurements.
- Fits Most Skimmers – Adapters Available if Needed! WaterGuru SENSE S2 fits round skimmers between 8.25” and 9.4” without an adapter. For 10” square skimmers, use the WaterGuru Square Adapter. For round skimmers larger than 9.4”, use the WaterGuru Circle Adapter. Both adapters are sold separately.
- Easy Installation – Drop the device into your skimmer for fast setup. No test strips required. Step-by-step guides, FAQs, and troubleshooting are available in the WaterGuru App.
- Wi-Fi Setup Guidance – Connects to your home Wi-Fi for automatic daily readings. For best performance, ensure the device is within 30 ft of your router or mesh node. If you experience connection issues, go to Your Orders, select your WaterGuru SENSE S2, and choose Get Product Support for assistance.
- Manufacturer Support Program – Every customer has direct access to our US-based support team for help with setup, connectivity, or readings. For support, go to to Your Orders, select your WaterGuru SENSE S2, and choose Get Product Support for assistance.
- Reliable Pool & Spa Testing – Measures five key water parameters daily: pH, free chlorine, cyanuric acid (CYA), total alkalinity, and hardness. Helps maintain balanced, clear water for safe swimming.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BT7BYJQ3 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #59,877 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #82 in Swimming Pool Water Test Kits |
| Control Method | App |
| Customer Reviews | 3.4 3.4 out of 5 stars (235) |
| Date First Available | January 27, 2023 |
| Description Pile | Alkaline |
| Global Trade Identification Number | 00850011421352 |
| Item Weight | 4.4 pounds |
| Item model number | WG-SENSE25 |
| Manufacturer | WaterGuru |
| Mounting Type | Skimmer Mount |
| Part Number | WG-SENSE25 |
| Product Dimensions | 10 x 10 x 19.5 inches |
| Sensor Technology | Optical |
| UPC | 850011421352 |
| Voltage | 1.5 Volts (DC) |

## Product Details

- **Battery Description:** Alkaline
- **Brand:** WaterGuru
- **Color:** White
- **Compatible Devices:** Inground pools, all pools, hot tubs
- **Power Source:** Battery Powered

## Images

![WaterGuru Sense S2 Smart Pool Monitor – Digital Pool & Spa Water Tester for Chlorine, pH, CYA & Alkalinity – Wi-Fi Enabled – Includes C5 Cassette, Float Ring & Batteries - Image 1](https://m.media-amazon.com/images/I/61QzVnQGWQL.jpg)

## Questions & Answers

**Q: How does the WaterGuru SENSE Work?**
A: The WaterGuru Sense S2 installs in your skimmer and uses optical tech to measure FC, pH, TA, CYA, and CH daily. The app shows your levels and provides custom advice based on your pool type, size, and chemicals to keep water balanced.

**Q: What’s in the Box?**
A: Includes the WaterGuru Sense S2, a C5 Cassette, 4 C batteries, a float ring for spas or above-ground pools, and a Quick Start Guide to help you install and get set up in seconds—everything you need to start smart pool monitoring right away.

**Q: Do I need Wi-Fi access near my pool for the WaterGuru SENSE to work?**
A: Yes. You will need Wi-Fi access at the pool area where the WaterGuru SENSE will be installed.

**Q: WaterGuru Pool Skimmer Monitor vs. Floating Pool Monitor – What’s the Difference?**
A: Floating monitors can drift, get damaged, or pose safety risks in active pools. WaterGuru Sense sits safely in your skimmer, out of the way, and delivers more stable, accurate readings by staying in constant water flow—no interference, no hassle.

**Q: Pool Test Strips vs. WaterGuru Chemical Monitoring?**
A: Test strips are time-consuming and often inaccurate. WaterGuru Sense sits in your skimmer and uses smart optical sensors to test key chemical levels. View results in the app with personalized advice—no guesswork, color matching, or manual testing.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Chemical Monitoring
*by N***D on July 23, 2025*

It is costly, but it is GREAT to bring up on the phone and see water temp, PH, Alk, Free Chlorine, etc. After entering the Pool Gallons, it also provides recommendation of quantity of chemical to add to bring chemistry into spec. It will provide links to purchase the chemicals from them, but I found purchasing the chemicals from Amazon to be a much better deal. If it eventually fails (hopefully long time from now) I would buy another one.

### ⭐ Not recommended, doesn’t work at all after 6 months
*by J***E on December 25, 2025*

Worked for about 4 months. Then stopped with daily measurements. Gave manual readings for about a month and now won’t give readings at all. The cassette is supposed to last 30 days but it does not. I have them on automatic shipment and have a bunch of useless cassettes. I consulted the help section and done everything suggested to resolve the issues. For a $400 device it’s absolutely ridiculous. I have contacted customer service, will update review.

### ⭐⭐⭐⭐⭐ Vital pool instrumentation - I can't imagine not having all this data anymore
*by H***. on July 8, 2023*

I had been one of the earliest pHin users, until Hayward acquired it and then eventually shut it down. I can understand why, since I had received in total 5 warranty replacement units. Then, I decided to go without a monitoring device for one season, which worked fine, until it didn't this year, when I went on a two week international trip and then I returned to a full algae bloom. My gamble that I would be back in time did not pay off, so I got the WaterGuru2 to stop flying blind and Wow! it's so great to have this level of fine grained data. I had been toying with Pentair pH & CL test kits and then the Taylor test kit too, but now I always exactly where my measurements are at. Now I've got a much better handle on all the major variables in my pool, which actually took a while to fully understand since I didn't know any of this before. As you can see from my screen shots, my pH is currently a bit low, but I'm told that's reasonable since I use the Tri-Chlor slow dissolving tablets, but my CYA (CYanuric Acid) is through the roof too high. We figured out today that this is because I had been using 99% DiChlor to shock my pool, which spas like to use, but it's not appropriate for my pool, so I need to switch to 68% Calcium Hypo. I'm also going to see if a new CYA remover does what it says it can do, to get my CYA down to normal levels. I'm also going to add in Green to Clean since my high CYA is preventing the full killing of some nagging algae that still remains and likes to come back. The WaterGuru support team, both Tier 1 and Tier 2 have been a true pleasure to work with. With your purchase of the WaterGuru2, you get two types of Sense2 cartridges, 1 C5, which monitors pH, FC plus CYA, Hardness and total Alkalinity and lasts 30 days, and 2 C2's, which measures just pH and FC daily and these each last for 60 days. Once you get into a steady state C2's are enough. By the way, if you're recovering from something as bad as an algae bloom, please refrain from excessively invoking "Measure" on the WaterGuru2 app, since this will shorten the life of the cassette dramatically, since the measuring film scrolls through the cartridge and it will run out faster. By default the WaterGuru2 measures the water once a day and that's actually good enough for residential owners. Anyone who loves data and is tired of "winging it", or "excessively shocking your pool", or "just paying too much monthly to your pool person" should get a WaterGuru 2.

## Frequently Bought Together

- Waterguru - Sense S2 Smart Pool Monitor - Chlorine & pH Meter - CYA & Alkalinity Tester Pool Water Tester - Spa & Hot Tub Monitor - Includes WaterGuru Sense S2 C5 Cassette, Float Ring & More
- WaterGuru - Sense Skimmer Adapter - Smart Pool Monitor - Chlorine & pH Meter - Pool Water Tester - Monitor Pool Chemicals (10” Square Skimmer Adapter)
- WaterGuru Sense S1 Smart Cassette - 3 Pack - Compatible with The WaterGuru Sense S1 Smart Pool Monitor only - Chlorine & pH Pool Water Testing Smart Device

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.za/products/534173097-waterguru-sense-s2-smart-pool-monitor-digital-pool-and-spa](https://www.desertcart.co.za/products/534173097-waterguru-sense-s2-smart-pool-monitor-digital-pool-and-spa)

---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-02*