---
product_id: 272967538
title: "AI213 Value Series TDS20 Waterproof TDS Pocket r kit, Accuracy: ±1% F.S, 2-Point Auto. Calibration"
brand: "apera instruments"
price: "¥26804"
currency: JPY
in_stock: true
reviews_count: 5
category: "Apera Instruments"
url: https://www.desertcart.jp/products/272967538-ai213-value-series-tds20-waterproof-tds-pocket-r-kit-accuracy
store_origin: JP
region: Japan
---

# ±1% F.S accuracy IP67 waterproof rating 1000 hrs battery life AI213 Value Series TDS20 Waterproof TDS Pocket r kit, Accuracy: ±1% F.S, 2-Point Auto. Calibration

**Brand:** apera instruments
**Price:** ¥26804
**Availability:** ✅ In Stock

## Summary

> 💧 Measure Like a Pro, Anywhere, Anytime!

## Quick Answers

- **What is this?** AI213 Value Series TDS20 Waterproof TDS Pocket r kit, Accuracy: ±1% F.S, 2-Point Auto. Calibration by apera instruments
- **How much does it cost?** ¥26804 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/272967538-ai213-value-series-tds20-waterproof-tds-pocket-r-kit-accuracy)

## 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

- • **Stay Powered, Stay Ahead:** Up to 1000 hours of operation on AAA batteries with smart low-power alerts and auto shutoff.
- • **Built to Brave the Elements:** IP67 waterproof design means your TDS20 is ready for any environment, rain or shine.
- • **All-in-One Portable Powerhouse:** Complete kit with calibration solutions, batteries, lanyard, and rugged carrying case—ready wherever you go.
- • **Precision that Professionals Trust:** Experience lab-grade ±1% full-scale accuracy for flawless water quality insights.
- • **Effortless Calibration, Zero Guesswork:** 2-point auto calibration with buffer recognition keeps your readings sharp and reliable.

## Overview

The Apera Instruments AI213 TDS20 Pocket TDS meter delivers professional-grade water quality testing with ±1% accuracy, IP67 waterproof durability, and up to 1000 hours of battery life. Featuring 2-point auto calibration, auto temperature compensation, and a large dual-display LCD, it’s a complete portable kit designed for precision and convenience in environmental, agricultural, and aquaculture applications.

## Description

Apera Instruments TDS20 Pocket TDS r Kit is built for professional TDS measurement of general water soliutions, including tap water, agriculture, aquaculture, pools& spas, education, environmental monitoring, etc. Range: 0-100.0 ppm, 0-1000 ppm, 0-10.0 ppt (10,000 ppm), Accuracy: ±1% F.S. 1-2 points auto. calibration, 0 to 50˚C auto. temp. compensation. The BPB (Brush-Resistant Platinum Black) sensor adopts Apera's special processing technology, which minimizes electrode polarization, expands measuring range, and increases firmness of the electrode, hence ensuring a much higher accuracy and consistency in a wide-range TDS measurement than traditional stainless steel electrodes, and is easy to clean.The large LCD screen has ppm/temp. value dual display and indications of completed calibrations and stable readings. Practical functions to make your TDS testing easier and more reliable: 2-point auto calibration, 0 to 50˚C auto. temp. compensation. Customizable TDS factor from 0.4 to 1.0. Self-diagnosis with out-of-range and low battery warning.Complete kit: TDS20 meter, 2 bottles of calibration solutions, AAA batteries, and a lanyard all in a portable carrying case. IP67 water-resistant. Up to 1000 hours of use powered by 4 AAA batteries. Low power alarm and auto. power off in 8 min if no operation. The product is CE and RoHS certified, and is manufactured under an ISO 9001:2015 certified quality system.

Review: TSDメーターを2本持っていますが、測定結果の差にひらきがあり過ぎるので、この商品を購入しました。 購入するに当たっては、pHメーター（PH-20）を持っていて精度も良かったのと、自分で校正出来る点を考慮して決めました。 購入したばかりなので耐久性は分かりませんが、測定結果は満足いくものでした。 校正の手順も、クイックマニュアルに図解で説明があり分かりやすかったです。
Review: I ordered this TDS Pocket Tester because I was so impressed with the Apera PH meter. They seems to be high quality and built with lasting materials. It not your ordinary cheap light weight plastic PH meter. It is a little pricey, but this one will last! You will also get awesome Accuracy: ±1% F.S. Calibration is easy and exactly the same as you would do for the PH meter. In fact, both PH and TDS calibration is on the same page, same buttons and all. This make it very easy to remember how to calibrate without different manuals. I really like / appreciate the case, calibration and 2 calibration solutions are stored in a really nice strong case. Keeping everything together and ready to use is Key!! I have just started using the TDS meter and getting use to liquid nutrients. This is the reason I purchased the meter. From what I see so far it it a great TDS meter. I have nothing to compare to but just the impressive quality tells me I should be good with with one!

## Features

- Accuracy: ±1% F.S, ±0.5˚C; Range: 0-10,000 ppm (10 ppt)
- EASY Auto Calibration with auto buffer recognition; 0 to 50˚C Auto. Temp. Compensation
- Large LCD with dual display of temp./ppt, and reminders of completed calibrations and stable readings
- Complete kit with calibration solutions, batteries, and a lanyard in a portable carrying case
- up to 1000 hours' operation powered by AAA batteries

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01ENFOIN2 |
| Item model number | AI213 |
| Manufacturer | Apera Instruments |
| Product Dimensions | 19.6 x 8.6 x 3.3 cm; 110.56 g |

## Images

![AI213 Value Series TDS20 Waterproof TDS Pocket r kit, Accuracy: ±1% F.S, 2-Point Auto. Calibration - Image 1](https://m.media-amazon.com/images/I/61Ao3j-VVrL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by く***ラ on 15 November 2022*

TSDメーターを2本持っていますが、測定結果の差にひらきがあり過ぎるので、この商品を購入しました。 購入するに当たっては、pHメーター（PH-20）を持っていて精度も良かったのと、自分で校正出来る点を考慮して決めました。 購入したばかりなので耐久性は分かりませんが、測定結果は満足いくものでした。 校正の手順も、クイックマニュアルに図解で説明があり分かりやすかったです。

### ⭐⭐⭐⭐⭐ Review
*by C***. on 12 June 2024*

I ordered this TDS Pocket Tester because I was so impressed with the Apera PH meter. They seems to be high quality and built with lasting materials. It not your ordinary cheap light weight plastic PH meter. It is a little pricey, but this one will last! You will also get awesome Accuracy: ±1% F.S. Calibration is easy and exactly the same as you would do for the PH meter. In fact, both PH and TDS calibration is on the same page, same buttons and all. This make it very easy to remember how to calibrate without different manuals. I really like / appreciate the case, calibration and 2 calibration solutions are stored in a really nice strong case. Keeping everything together and ready to use is Key!! I have just started using the TDS meter and getting use to liquid nutrients. This is the reason I purchased the meter. From what I see so far it it a great TDS meter. I have nothing to compare to but just the impressive quality tells me I should be good with with one!

### ⭐⭐⭐⭐⭐ Review
*by D***P on 22 March 2019*

Mesure simple et rapide, contrôle et étalonnage aisé sans devoir jouer du tournevis grâce a la reconnaissance digitale et les solutions d'étalonnage livrées dans le coffret.

## 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 Japan*
*Store origin: JP*
*Last updated: 2026-03-17*