---
product_id: 10464751
title: "Bluelab Guardian Monitor Inline Wi-Fi for Real-time pH, Temperature, and Conductivity (TDS/PPM) Measurements in Water with Calibration, 3-1 Digital Nutrient Meter for Inline Dosing Systems"
brand: "bluelab"
price: "$1963"
currency: NZD
in_stock: true
reviews_count: 8
category: "Bluelab"
url: https://www.desertcart.nz/products/10464751-bluelab-guardian-monitor-inline-wi-fi-for-real-time-ph
store_origin: NZ
region: New Zealand
---

# 3-in-1 pH, Conductivity, Temp sensor Real-time Wi-Fi monitoring ±0.1°C temperature accuracy Bluelab Guardian Monitor Inline Wi-Fi for Real-time pH, Temperature, and Conductivity (TDS/PPM) Measurements in Water with Calibration, 3-1 Digital Nutrient Meter for Inline Dosing Systems

**Brand:** bluelab
**Price:** $1963
**Availability:** ✅ In Stock

## Summary

> 🌿 Stay connected, stay ahead: The ultimate inline nutrient monitor for the modern grower.

## Quick Answers

- **What is this?** Bluelab Guardian Monitor Inline Wi-Fi for Real-time pH, Temperature, and Conductivity (TDS/PPM) Measurements in Water with Calibration, 3-1 Digital Nutrient Meter for Inline Dosing Systems by bluelab
- **How much does it cost?** $1963 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/10464751-bluelab-guardian-monitor-inline-wi-fi-for-real-time-ph)

## Best For

- bluelab enthusiasts

## Why This Product

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

## Key Features

- • **Precision You Can Trust:** Experience lab-grade ±0.1°C temperature accuracy and reliable inline pH measurement with a replaceable double-junction probe.
- • **Always-On Remote Control:** Monitor and adjust your nutrient dosing from anywhere with seamless Wi-Fi connectivity and the Edenic app.
- • **Data-Driven Growth Mastery:** Access detailed history reports and multi-scale conductivity readings (EC/CF, TDS 500/700) to optimize your nutrient management strategy.
- • **Instant Alerts, Zero Downtime:** Get real-time high/low pH, temperature, and conductivity alerts directly to your smartphone—never miss a critical change.
- • **Plug & Play Global Compatibility:** Interchangeable power plugs and 110-240 VAC operation make it perfect for any professional grow environment worldwide.

## Overview

The Bluelab Guardian Monitor Inline Wi-Fi is a professional-grade 3-in-1 digital nutrient meter designed for real-time inline monitoring of pH, temperature (±0.1°C accuracy), and conductivity (TDS/PPM). Featuring built-in Wi-Fi and compatibility with the Edenic app, it offers remote control, instant alerts, and detailed data reporting. Its interchangeable power plugs and robust calibration system make it ideal for global, precision nutrient dosing in advanced hydroponic and dosing systems.

## Description

Bluelab Guardian Monitor Inline Wi-Fi for Real-time pH, Temperature, and Conductivity (TDS/PPM) Measurements in Water with Calibration, 3-1 Digital Nutrient Meter for Inline Dosing Systems: desertcart.com: Industrial & Scientific

Review: High value for price for the "prosumer" market - I only read negative reviews to gather my opinions on a product. If you're serious about buying a product like this, consider that pH probes are not a lifetime investment due to their nature, and move on with life. This unit has a permanently fixed EC sensor, and a replaceable pH sensor. I've purchased two of these units. The first came out of the box and required no calibration as far as I could tell. The second unit came with a defective pH probe (again reference why these probes are problematic in general regardless of manufacturer)... Immediate and awesome response from Bluelab support and they are sending me a replacement probe with no issues. The reviews I've read about this company are consistent with my experience, and I cannot recommend them more. If you want to integrate your own app with their API, it's braindead simple. I cannot recommend this product more.
Review: Fantastic service, great product, can’t compare to anyone else - Fantastic customer service! Comes with warranty and they are super quick to replace broken parts will definitely buy agin.

## Features

- Real-time Monitoring: The Bluelab Guardian Monitor Inline Wi-Fi allows you to continuously monitor your dosing pH, Conductivity, and Temperature. Compatible with the Edenic by Bluelab app, receive instant alerts, remote monitoring, and history reporting. Manage your growing environment from where you'd like, when you like.
- Comprehensive Display and Remote Control: Equipped with built-in Wi-Fi, this device offers remote monitoring and control. Conductivity is displayed in EC/CF, TDS (ppm 500), and ppm 700 scales, while temperature can be viewed in °C or °F. Stay connected to your parameters and make data-driven decisions from anywhere, anytime.
- Remote Alerts Directly to your Smartphone: The device features high/low pH, temperature, and conductivity alerts, and a non-volatile memory that keeps settings intact even through power loss. Never miss an important change in your reservoir conditions.
- Inline pH Measurement Capabilities: The Bluelab Guardian Monitor Inline Wi-Fi comes with a double-junction, replaceable Bluelab pH Probe Inline with a BNC connection, providing reliable and accurate pH measurements with a simple 2-point calibration process. It's the perfect solution for monitoring your inline dosing system.
- Interchangeable Power Plug and Wide Operating Range: The device includes an interchangeable power plug (North America, Europe, UK, AU/NZ). It operates on 110 – 240 VAC, making it suitable for use in various locations.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Battery Description | No batteries required |
| Best Sellers Rank | #55,916 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #54 in Lab pH Meters |
| Brand | Bluelab |
| Customer Reviews | 4.3 out of 5 stars 800 Reviews |
| Item Weight | 1.85 Pounds |
| Manufacturer | Bluelab |
| Temperature Reading Accuracy | plus_minus_0_point_1_degrees_celsius |

## Product Details

- **Color:** White
- **Brand:** Bluelab
- **Item Weight:** 0.48 Pounds
- **Battery Description:** No batteries required
- **Voltage:** 1

## Images

![Bluelab Guardian Monitor Inline Wi-Fi for Real-time pH, Temperature, and Conductivity (TDS/PPM) Measurements in Water with Calibration, 3-1 Digital Nutrient Meter for Inline Dosing Systems - Image 1](https://m.media-amazon.com/images/I/718FzWpQibL.jpg)
![Bluelab Guardian Monitor Inline Wi-Fi for Real-time pH, Temperature, and Conductivity (TDS/PPM) Measurements in Water with Calibration, 3-1 Digital Nutrient Meter for Inline Dosing Systems - Image 2](https://m.media-amazon.com/images/I/718noDhLgKL.jpg)
![Bluelab Guardian Monitor Inline Wi-Fi for Real-time pH, Temperature, and Conductivity (TDS/PPM) Measurements in Water with Calibration, 3-1 Digital Nutrient Meter for Inline Dosing Systems - Image 3](https://m.media-amazon.com/images/I/71ehw9Wq3hL.jpg)
![Bluelab Guardian Monitor Inline Wi-Fi for Real-time pH, Temperature, and Conductivity (TDS/PPM) Measurements in Water with Calibration, 3-1 Digital Nutrient Meter for Inline Dosing Systems - Image 4](https://m.media-amazon.com/images/I/71hfiGWcB7L.jpg)
![Bluelab Guardian Monitor Inline Wi-Fi for Real-time pH, Temperature, and Conductivity (TDS/PPM) Measurements in Water with Calibration, 3-1 Digital Nutrient Meter for Inline Dosing Systems - Image 5](https://m.media-amazon.com/images/I/71zXzUl3Z-L.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: How would this hold up for saltwater aquariums. Notably, used in the sump within the cabinet which can be a humid environment ?**
A: The problem with blue lab is the led dies.  I have used 4 of these and after a year or two is a bar will go out and you cannot read the display any more. Do not buy!

**Q: can the probes stay completely submerged inside the reservoir at all times?**
A: I've had mines for about 4 months now and it's always been in my reservoir 24-7. No problem so far.

**Q: Are the probes waterproof? Can they be used underwater?**
A: Yes the probes CAN be submerged and are designed to stay in your liquid for extended periods (should be cleaned once a month)Youtube video from Bluelabs.com shows the EC/TDS/ppm probe submerged and this link from the manufacturer clearly states that you can completely submerged the PH probe:http://www.getbluelab.com/site/bluelabassist/files//Care%20and%20Use%20of%20Bluelab%20Soil%20pH%20Probes%20Aug09.pdf

**Q: I have several of these does anyone know where to get the lights placed,many have burned out.Makes it difficult to get the accurate readings I want.**
A: These lights are not replaceable. Please contact the seller so you can have this returned for manufacture warranty repair/replacement.

## Customer Reviews

### ⭐⭐⭐⭐⭐ High value for price for the "prosumer" market
*by R***8 on February 5, 2025*

I only read negative reviews to gather my opinions on a product. If you're serious about buying a product like this, consider that pH probes are not a lifetime investment due to their nature, and move on with life. This unit has a permanently fixed EC sensor, and a replaceable pH sensor. I've purchased two of these units. The first came out of the box and required no calibration as far as I could tell. The second unit came with a defective pH probe (again reference why these probes are problematic in general regardless of manufacturer)... Immediate and awesome response from Bluelab support and they are sending me a replacement probe with no issues. The reviews I've read about this company are consistent with my experience, and I cannot recommend them more. If you want to integrate your own app with their API, it's braindead simple. I cannot recommend this product more.

### ⭐⭐⭐⭐⭐ Fantastic service, great product, can’t compare to anyone else
*by J***E on September 3, 2025*

Fantastic customer service! Comes with warranty and they are super quick to replace broken parts will definitely buy agin.

### ⭐⭐⭐⭐⭐ Perfect accessory for my Tower Garden
*by D***T on October 24, 2013*

This makes monitoring my PH , temp, and TDS levels easy. No more having to take samples of the water to check my PH levels, or wondering about the temperature of the water feeding my plants. I'm currently using the TDS meter as an indicator of my water level. As the water level goes down, the concentration of nutrients in the water goes up... I think. So as the TDS level goes up, I know that the ratio of water to nutrients is going down (since I know I did not add any nutrients during that time). Don't quote me on this. I was never any good at science or math. Anyway, I don't think I'm using the TDS meter properly, but what the heck. It works for me. I love the product. I just wish the cord for the PH measuring thingy and the temperature measuring thingy were longer, but now I'm just nitpicking.

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-11*