--- 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: "₱455" currency: PHP in_stock: false reviews_count: 13 url: https://www.desertcart.ph/products/49302416-apera-instruments-tds20-value-tds-meter-pocket-tester-waterproof-1 store_origin: PH region: Philippines --- # Waterproof for rugged use ±1% accuracy precision 1000 hrs battery life Apera Instruments TDS20 Value TDS Meter, Pocket Tester, Waterproof, ±1% Accuracy, ±0.5˚C Temperature Sensor, Complete Kit **Brand:** apera instruments **Price:** ₱455 **Availability:** ❌ Out of Stock ## Summary > 💧 Pocket precision meets pro reliability — never miss a drop! ## 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?** ₱455 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/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 powered by standard AAA batteries. - • **Ready When You Are:** Complete kit with calibration solutions, batteries, and lanyard for instant use. - • **Built for the Field:** Waterproof design and pocket-sized portability for on-the-go professionals. - • **Smart Auto Calibration:** Auto buffer recognition and temperature compensation guarantee consistent results. - • **Precision You Can Trust:** ±1% full scale accuracy ensures reliable readings every time. ## Overview The Apera TDS20 Value Pocket TDS Meter is a waterproof, highly accurate water quality tester with ±1% accuracy and ±0.5˚C temperature sensor. Featuring auto calibration with buffer recognition, auto temperature compensation (0-50˚C), and a large dual LCD display, it comes as a complete kit including calibration solutions, batteries, and a lanyard in a rugged carrying case. Designed for professionals and enthusiasts alike, it offers up to 1000 hours of continuous use powered by AAA batteries, making it the ultimate portable tool for water testing in agriculture, aquaculture, pools, and more. ## Description From the manufacturer Apera Instruments TDS20 Value TDS Meter We have been focusing on the development of water analysis instruments and sensors since 1991. Our sensor and electronics technologies have gained recognition in over 50 countries across America, Asia, and Europe. All the products are CE certified and are manufactured by our ISO 9001:2015 certified manufacturing base. For over 28 years, we have always been dedicated to providing more reliable, accurate, and user-friendly water analysis instruments, a goal we continue to strive for. The Apera Instruments TDS20 Value Pocket TDS Tester is simply the most reliable pocket conductivity ppm tester/meter with the best value for all kinds of routine testing, including tap water/drinking water testing, agriculture, aquaculture, swimming pool, education, etc . The unique platinum black conductivity probe technology ensures wide range measurement with accuracy and consistency. An ultra clear 180˚ viewing angle screen with temp./TDS value dual display and indications of completed auto calibrations and stable readings. 1-2 points auto calibration and 0 to 50˚C auto temp. compensation, ±1% F.S accuracy with 0 to 20.00 mS/cm wide conductivity measuring range Self-diagnosis with an out-of-range warning and incorrect calibration reminders. The details 200 hours' continuous operation powered by AAA batteries (with low power warning and auto power off in 8 min if no operation). Complete kit with calibration solutions (1413 µs and 12.88 mS), AAA batteries, and a lanyard all in a rugged carrying case. For all kinds of routine testing, including tap water/drinking water testing, agriculture, aquaculture, swimming pool, education, etc. 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 | 255,566 in Garden ( See Top 100 in Garden ) 37 in Water Garden & Pond Test Kits | | Customer Reviews | 4.4 4.4 out of 5 stars (234) | | 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/61Ao3j-VVrL.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/719hWuT8auL.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/91PyXvrMveL.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/91zXB2cPerL.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/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.ph/products/49302416-apera-instruments-tds20-value-tds-meter-pocket-tester-waterproof-1](https://www.desertcart.ph/products/49302416-apera-instruments-tds20-value-tds-meter-pocket-tester-waterproof-1) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-06-23*