--- product_id: 49302416 title: "Apera Instruments, AI213 Pocket Tester, TDS20 Value, Waterproof TDS, Complete Kit, Accuracy: 1% F.S, 0.5 Degree C" price: "₹ 15814" currency: INR in_stock: true reviews_count: 13 url: https://www.desertcart.in/products/49302416-apera-instruments-ai213-pocket-tester-tds20-value-waterproof-tds-complete store_origin: IN region: India --- # Waterproof for rugged use ±1% accuracy precision 1000 hrs battery life Apera Instruments, AI213 Pocket Tester, TDS20 Value, Waterproof TDS, Complete Kit, Accuracy: 1% F.S, 0.5 Degree C **Price:** ₹ 15814 **Availability:** ✅ In Stock ## Summary > 💧 Pocket precision meets pro-level reliability — never miss a drop! ## Quick Answers - **What is this?** Apera Instruments, AI213 Pocket Tester, TDS20 Value, Waterproof TDS, Complete Kit, Accuracy: 1% F.S, 0.5 Degree C - **How much does it cost?** ₹ 15814 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/49302416-apera-instruments-ai213-pocket-tester-tds20-value-waterproof-tds-complete) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Calibration:** Auto buffer recognition and easy 1-2 point calibration keep your meter ready instantly. - • **Precision You Can Trust:** ±1% full scale accuracy ensures reliable water quality readings every time. - • **Built for Real-World Use:** Waterproof design and rugged carrying case make it your go-to field companion. - • **Complete Ready-to-Go Kit:** Includes calibration solutions, batteries, lanyard, and portable case for immediate use. - • **Smart Temperature Compensation:** Auto Temp. Compensation (0-50°C) guarantees accuracy across environments. ## Overview The Apera Instruments TDS20 is a pocket-sized, waterproof TDS meter delivering ±1% accuracy with auto temperature compensation and auto calibration. Designed for professionals and enthusiasts alike, it offers a dual-display LCD, long battery life (up to 1000 hours), and comes as a complete kit with calibration solutions and accessories. Ideal for water quality testing in agriculture, aquaculture, pools, and drinking water, it combines precision, portability, and ease of use in one sleek package. ## Description Apera Instruments, AI213 Pocket Tester, TDS20 Value, Waterproof TDS, Complete Kit, Accuracy: 1% F.S, 0.5 Degree C : 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 | 262,119 in Garden ( See Top 100 in Garden ) 41 in Water Garden & Pond Test Kits | | Customer Reviews | 4.4 4.4 out of 5 stars (245) | | Date First Available | 27 Sept. 2016 | | Guaranteed software updates until | unknown | | 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, AI213 Pocket Tester, TDS20 Value, Waterproof TDS, Complete Kit, Accuracy: 1% F.S, 0.5 Degree C - Image 1](https://m.media-amazon.com/images/I/61Ao3j-VVrL.jpg) ![Apera Instruments, AI213 Pocket Tester, TDS20 Value, Waterproof TDS, Complete Kit, Accuracy: 1% F.S, 0.5 Degree C - Image 2](https://m.media-amazon.com/images/I/719hWuT8auL.jpg) ![Apera Instruments, AI213 Pocket Tester, TDS20 Value, Waterproof TDS, Complete Kit, Accuracy: 1% F.S, 0.5 Degree C - Image 3](https://m.media-amazon.com/images/I/91PyXvrMveL.jpg) ![Apera Instruments, AI213 Pocket Tester, TDS20 Value, Waterproof TDS, Complete Kit, Accuracy: 1% F.S, 0.5 Degree C - Image 4](https://m.media-amazon.com/images/I/91zXB2cPerL.jpg) ![Apera Instruments, AI213 Pocket Tester, TDS20 Value, Waterproof TDS, Complete Kit, Accuracy: 1% F.S, 0.5 Degree C - Image 5](https://m.media-amazon.com/images/I/81lEgb3Qi-L.jpg) ## Available Options This product comes in different **Style** options. ## 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 --- ## 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.in/products/49302416-apera-instruments-ai213-pocket-tester-tds20-value-waterproof-tds-complete](https://www.desertcart.in/products/49302416-apera-instruments-ai213-pocket-tester-tds20-value-waterproof-tds-complete) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-10-17*