---
product_id: 15740776
title: "FicBox TDS-4 Pocket Size TDS Tester Meter Without Digital Thermometer, 0-9990 ppm Measurement Range, 1 ppm Resolution, 2% Readout Accuracy"
brand: "ficbox"
price: "$0.29"
currency: USD
in_stock: false
reviews_count: 2
url: https://www.desertcart.us/products/15740776-ficbox-tds-4-pocket-size-tds-tester-meter-without-digital
store_origin: US
region: United States of America
---

# 2% accuracy 0-9990 ppm range 1 ppm resolution FicBox TDS-4 Pocket Size TDS Tester Meter Without Digital Thermometer, 0-9990 ppm Measurement Range, 1 ppm Resolution, 2% Readout Accuracy

**Brand:** ficbox
**Price:** $0.29
**Availability:** ❌ Out of Stock

## Summary

> 💡 Stay Ahead of the Curve with Precision Water Testing!

## Quick Answers

- **What is this?** FicBox TDS-4 Pocket Size TDS Tester Meter Without Digital Thermometer, 0-9990 ppm Measurement Range, 1 ppm Resolution, 2% Readout Accuracy by ficbox
- **How much does it cost?** $0.29 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/15740776-ficbox-tds-4-pocket-size-tds-tester-meter-without-digital)

## Best For

- ficbox enthusiasts

## Why This Product

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

## Key Features

- • **Sleek & Portable:** Compact design makes it ideal for both personal and commercial use.
- • **Advanced Technology:** Leverage cutting-edge microprocessor technology for reliable results.
- • **Precision Measurement:** Experience unparalleled accuracy with a 2% readout precision.
- • **Versatile Applications:** Perfect for aquaculture, hydroponics, and water purification.
- • **User-Friendly Functionality:** Hold function allows you to freeze measurements for easy reading.

## Overview

The FicBox TDS-4 Pocket Size TDS Tester Meter is a high-performance device designed for accurate water quality measurement, featuring a measurement range of 0-9990 ppm, 1 ppm resolution, and 2% readout accuracy. Ideal for various applications including aquaculture and hydroponics, this sleek and portable tester is equipped with advanced microprocessor technology and a convenient hold function for easy use.

## Description

Product Description: How Pure is Your Water? A TDS meter (aka ppm pen, nutrient tester, tds stick) is an inexpensive and convenient digital tool to instantly check your overall water quality. TDS = Total Dissolved Solids, which is any salt, metal or mineral in the water. With the push of a button, the TDS-4 can tell you your overall water purity level, which will be displayed on the screen in ppm (parts per million). The lower the TDS level, the purer the water, with 0 ppm being pure H2O. The TDS-4 is great for checking your tap water quality, or knowing when to change a filter. (The meter does not test for biological contaminants.) The TDS-4 is a great tool for drinking water, water filtration and purification, hydroponics (test your nutrients), colloidal silver, aquariums, RO/DI systems, pools and spas, and more.

## Features

- This TDS tester is ideal for all water purification applications, wastewater regulation, aquaculture, hydroponics, and colloidal silver
- ATC (Automatic Temperature Compensation)
- The Sleek design of the TDS-4 is perfect for personal or commercial use
- Advanced microprocessor technology
- Hold Function: Freeze the measurement to view it out of the water.

## Images

![FicBox TDS-4 Pocket Size TDS Tester Meter Without Digital Thermometer, 0-9990 ppm Measurement Range, 1 ppm Resolution, 2% Readout Accuracy - Image 1](https://m.media-amazon.com/images/I/41RNcyF7I5L.jpg)
![FicBox TDS-4 Pocket Size TDS Tester Meter Without Digital Thermometer, 0-9990 ppm Measurement Range, 1 ppm Resolution, 2% Readout Accuracy - Image 2](https://m.media-amazon.com/images/I/61nsS2-cOaL.jpg)
![FicBox TDS-4 Pocket Size TDS Tester Meter Without Digital Thermometer, 0-9990 ppm Measurement Range, 1 ppm Resolution, 2% Readout Accuracy - Image 3](https://m.media-amazon.com/images/I/51Mxb7+hNwL.jpg)
![FicBox TDS-4 Pocket Size TDS Tester Meter Without Digital Thermometer, 0-9990 ppm Measurement Range, 1 ppm Resolution, 2% Readout Accuracy - Image 4](https://m.media-amazon.com/images/I/51NwniCWtAL.jpg)
![FicBox TDS-4 Pocket Size TDS Tester Meter Without Digital Thermometer, 0-9990 ppm Measurement Range, 1 ppm Resolution, 2% Readout Accuracy - Image 5](https://m.media-amazon.com/images/I/515r9Sh6ZaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    This tester is a good value.
  

*by R***N on Reviewed in the United States 🇺🇸 on October 6, 2015*

I purchased this tester because I was going to change out the filters and membrane on my RO system.  I wanted to know the condition of the water (tap water) going in as well as the performance of my system before and after the membrane and filter changes.  The tester was compact, easy to use and easy to read.  Although it does not provide temperature readings of the liquids you are testing, it does compensate for temperature readings, giving the user more accurate data. The tester came with a black little case to store it in, which was a nice surprise.  For the money, I don't think you can beat this tester.  1245

### ⭐⭐⭐⭐⭐ 







  
  
    Works good for ponds
  

*by S***E on Reviewed in the United States 🇺🇸 on October 15, 2015*

Works great and quick! I just hand to learn how to use it properly.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-12*