---
product_id: 49302416
title: "Apera Instruments TDS20 Value TDS Meter, Pocket Tester, Waterproof, ±1% Accuracy, ±0.5˚C Temperature Sensor, Complete Kit"
brand: "apera instruments"
price: "₨73550"
currency: LKR
in_stock: false
reviews_count: 13
url: https://www.desertcart.lk/products/49302416-apera-instruments-tds20-value-tds-meter-pocket-tester-waterproof-1
store_origin: LK
region: Sri Lanka
---

# Waterproof design for rugged use ±1% accuracy for precise readings ±0.5˚C temperature sensor with ATC Apera Instruments TDS20 Value TDS Meter, Pocket Tester, Waterproof, ±1% Accuracy, ±0.5˚C Temperature Sensor, Complete Kit

**Brand:** apera instruments
**Price:** ₨73550
**Availability:** ❌ Out of Stock

## Summary

> 💧 Pocket precision, professional power — test smarter, not harder!

## Quick Answers

- **What is this?** Apera Instruments TDS20 Value TDS Meter, Pocket Tester, Waterproof, ±1% Accuracy, ±0.5˚C Temperature Sensor, Complete Kit by apera instruments
- **How much does it cost?** ₨73550 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/49302416-apera-instruments-tds20-value-tds-meter-pocket-tester-waterproof-1)

## Best For

- apera instruments enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Power:** Up to 1000 hours of continuous operation on included AAA batteries means no interruptions in your workflow.
- • **Dual Display Clarity:** Large LCD shows temperature and TDS simultaneously, so you never miss a detail.
- • **Smart Auto Calibration:** Effortless auto calibration with buffer recognition keeps your meter always ready and reliable.
- • **All-in-One Portable Kit:** Comes complete with calibration solutions, batteries, lanyard, and a sleek carrying case—ready to go anywhere.
- • **Precision You Can Trust:** Experience lab-grade ±1% accuracy and ±0.5˚C temperature sensing for flawless water quality checks.

## Overview

The Apera Instruments TDS20 is a compact, waterproof TDS meter delivering ±1% accuracy and ±0.5˚C temperature sensing with auto temperature compensation. Featuring easy auto calibration, a dual-display LCD, and a complete kit including calibration solutions and batteries, it offers up to 1000 hours of continuous use. Ideal for professionals and enthusiasts seeking reliable, portable water quality testing without bulky equipment.

## Description

Apera Instruments TDS20 Value TDS Meter, Pocket Tester, Waterproof, ±1% Accuracy, ±0.5˚C Temperature Sensor, Complete Kit : desertcart.co.uk: Business, Industry & Science

Review: A reliable and accurate device. Recommended. - I have used this meter for 3 years so I can offer a reasoned assessment. The kit is thoughfully designed. The meter is reliable and accurate. It is waterproof. The default reading is in microsiemens, which I much prefer to ppm, but the the meter can convert and present the reading in ppm if required. I would suggest checking the accuracy immediately using the provided 1413 microsiemens calibration fluid. Then I would suggest testing some distilled water - the reading should zero. Over time the meter will need to be recalibrated but this is a simple procedure using the 1413 calibration fluid. I own several professional conductivity meters made by WTW, Hanna and such like but they are stored in quite bulky professional cases and are equipped with separate electrodes whereas this meter is easy to access and to use being all of one piece and this is sometimes very handy. The meter can be slipped into pocket which the others cannot so it's convenient in many situations. I've used this one a fair bit in my work. The accuracy compares favourably with other meters which are many times more expensive. A useful and reliable tool, this is not a toy such as the many sub-£15 TDS meters one finds on sale. I don't think it would be suitable for professional use - the screen is rather small, for example. But it is fine as a backup device to use for quick checks. I would recommend this device to anyone looking for a reliable conductivity meter without investing in expensive professional equipment.
Review: Does the job and does it well. - A very well made and accurate TDS meter, i have both this and their PH meter in this range. Ignore every other chinese PoS meter on this site and just pay a little more and get a good accurate German meter.

## Features

- Easy Auto Calibration with buffer recognition; Auto Temp. Compensation (ATC) ensures accuracy in variant temperatures (0-50.0˚C); Accuracy: ±1% F.S, 0.5˚C; Range: 0-100.0 ppm, 0-1000 ppm, 0-10.0 ppt
- EASY Auto Calibration with auto buffer recognition; Auto Temp. Compensation (ATC) ensures accuracy in variant temperatures (0-50.0˚C)
- LARGE CLEAR LCD with DUAL Display of temp./ppt, and REMINDERS of completed calibrations and stable readings
- COMPLETE KIT with READY-TO-USE calibration solutions, batteries, and a lanyard in a portable carrying case
- up to 1000 hours' continuous operation time powered by AAA batteries

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01ENFOIN2 |
| Batteries | 4 AAA batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | 180,248 in Garden ( See Top 100 in Garden ) 32 in Water Garden & Pond Test Kits |
| Customer Reviews | 4.4 4.4 out of 5 stars (226) |
| Date First Available | 27 Sept. 2016 |
| Included components | 1 Pocket tester, 1 set of buffer solutions, 2 batteries, 1 case |
| Item Package Quantity | 1 |
| Item Weight | 110 g |
| Item model number | AI213 |
| Manufacturer | Apera |
| Material | Plastic |
| Part number | AI213 |
| Product Dimensions | 19.6 x 8.6 x 3.3 cm; 110.56 g |
| Style | Single |

## Images

![Apera Instruments TDS20 Value TDS Meter, Pocket Tester, Waterproof, ±1% Accuracy, ±0.5˚C Temperature Sensor, Complete Kit - Image 1](https://m.media-amazon.com/images/I/21-tJ-F5QbL.jpg)
![Apera Instruments TDS20 Value TDS Meter, Pocket Tester, Waterproof, ±1% Accuracy, ±0.5˚C Temperature Sensor, Complete Kit - Image 2](https://m.media-amazon.com/images/I/310HMAbsAYL.jpg)
![Apera Instruments TDS20 Value TDS Meter, Pocket Tester, Waterproof, ±1% Accuracy, ±0.5˚C Temperature Sensor, Complete Kit - Image 3](https://m.media-amazon.com/images/I/31KbGMzqlOL.jpg)
![Apera Instruments TDS20 Value TDS Meter, Pocket Tester, Waterproof, ±1% Accuracy, ±0.5˚C Temperature Sensor, Complete Kit - Image 4](https://m.media-amazon.com/images/I/41J3GdWdUxL.jpg)
![Apera Instruments TDS20 Value TDS Meter, Pocket Tester, Waterproof, ±1% Accuracy, ±0.5˚C Temperature Sensor, Complete Kit - Image 5](https://m.media-amazon.com/images/I/41O2ADPtHwL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A reliable and accurate device. Recommended.
*by N***R on 10 June 2025*

I have used this meter for 3 years so I can offer a reasoned assessment. The kit is thoughfully designed. The meter is reliable and accurate. It is waterproof. The default reading is in microsiemens, which I much prefer to ppm, but the the meter can convert and present the reading in ppm if required. I would suggest checking the accuracy immediately using the provided 1413 microsiemens calibration fluid. Then I would suggest testing some distilled water - the reading should zero. Over time the meter will need to be recalibrated but this is a simple procedure using the 1413 calibration fluid. I own several professional conductivity meters made by WTW, Hanna and such like but they are stored in quite bulky professional cases and are equipped with separate electrodes whereas this meter is easy to access and to use being all of one piece and this is sometimes very handy. The meter can be slipped into pocket which the others cannot so it's convenient in many situations. I've used this one a fair bit in my work. The accuracy compares favourably with other meters which are many times more expensive. A useful and reliable tool, this is not a toy such as the many sub-£15 TDS meters one finds on sale. I don't think it would be suitable for professional use - the screen is rather small, for example. But it is fine as a backup device to use for quick checks. I would recommend this device to anyone looking for a reliable conductivity meter without investing in expensive professional equipment.

### ⭐⭐⭐⭐⭐ Does the job and does it well.
*by E***. on 28 October 2021*

A very well made and accurate TDS meter, i have both this and their PH meter in this range. Ignore every other chinese PoS meter on this site and just pay a little more and get a good accurate German meter.

### ⭐⭐⭐⭐⭐ In interesting gadget.
*by S***L on 28 September 2023*

As title

## Frequently Bought Together

- Apera Instruments AI213 Value Series TDS20 Waterproof TDS Pocket Tester kit, Accuracy: ±1% F.S, 2-Point Auto. Calibration
- APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy
- General Hydroponics pH Control Kit For A Balanced Nutrient Solution

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-04*