--- product_id: 79775933 title: "ORP-200 Waterproof ORP Meter Measures Oxidation Reduction Potential and Temperature" brand: "hm digital" price: "B/.531" currency: PAB in_stock: true url: https://www.desertcart.com.pa/products/79775933-orp-200-waterproof-orp-meter-measures-oxidation-reduction-potential-temperature store_origin: PA region: Panama --- # Waterproof IP67 Compact Size 3.3x3.3x18.54 cm Alkaline Battery Included ORP-200 Waterproof ORP Meter Measures Oxidation Reduction Potential and Temperature **Brand:** hm digital **Price:** B/.531 **Availability:** ✅ In Stock ## Summary > 💡 Elevate Your Water Quality Game! ## Quick Answers - **What is this?** ORP-200 Waterproof ORP Meter Measures Oxidation Reduction Potential and Temperature by hm digital - **How much does it cost?** B/.531 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/79775933-orp-200-waterproof-orp-meter-measures-oxidation-reduction-potential-temperature) ## Best For - hm digital enthusiasts ## Why This Product - Trusted hm digital brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Instant Readings:** Get immediate results to make informed decisions about your water quality. - • **Durable & Reliable:** Waterproof design ensures longevity and performance in any environment. - • **Eco-Conscious Choice:** Promote sustainability with a device that helps you monitor and maintain clean water. - • **User-Friendly Design:** Lightweight and portable, perfect for on-the-go testing. - • **Precision Measurement:** Accurately measures oxidation reduction potential for superior water quality. ## Overview The HM Digital ORP-200 Waterproof ORP Meter is a cutting-edge device designed to measure oxidation reduction potential and temperature in water. With its waterproof IP67 rating and user-friendly design, this meter is perfect for professionals and enthusiasts alike who demand precision and reliability in their water testing. Weighing just 0.35 pounds and featuring an alkaline battery, it's the ideal companion for ensuring optimal water quality wherever you go. ## Description HM Digital ORP-200 Waterproof ORP Meter Measures Oxidation Reduction Potential and Temperature ## Features - ORP METER - WATERPROOF ORP METER - WATER ORP METER - ORP METER WATER TESTING - WATER TESTING ORP METER ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | HM Digital | | Are Batteries Included | Yes | | Colour | Green | | Item Weight | 0.35 Pounds | | Battery Description | Alkaline | | Water Resistance Level | Waterproof | | International Protection Rating | IP67 | | UPC | 891144000045 612953889764 735090555849 | | Global Trade Identification Number | 00891144000045 | | Manufacturer | HM Digital India, Rajasthan | | Country of Origin | India | | Item model number | ORP-200 | | Product Dimensions | 3.3 x 3.3 x 18.54 cm; 158.76 g | | ASIN | B00132GJ0E | ## Product Details - **Brand:** HM Digital - **Are Batteries Included:** Yes - **Colour:** Green - **Item Weight:** 0.35 Pounds - **Battery Description:** Alkaline ## Images ![ORP-200 Waterproof ORP Meter Measures Oxidation Reduction Potential and Temperature - Image 1](https://m.media-amazon.com/images/I/51RYSfrhYrL.jpg) ## Questions & Answers **Q: Does this meter test for ozone and PH levels?** A: Dennis,This tester tests for Temperature, ORP and PH (not Ozone). **Q: Does tester test for ozone and PH levels** A: This meter does not test for pH or Ozone. I bought a cheap pH meter off Amazon , model ATC, a yellow and black rectangular meter, about $10 with shipping, for the pH. I haven't done anything with ozone. The ORP meter tests water temperature and ORP. I didn't buy the calibration fluid which I'm going to have to buy. The first reading was -255 and the next reading a couple of days later was about -20. I don't have any way to calibrate it and the reviews say you have to calibrate regularly. Hope this helps. **Q: The specs on the orp 200 state it will test -999 to +1000 and also that it is factory calibrated to +200. what's the factory calibration of +200 for?** A: On all ORP meters I have received, over the last 10 years, when you turn it on, the meter will read between 200 and 250. This is normal. Keep the ORP probe wet. Get your self a calibration solution to check and adjust the calibration. This meter comes with a small piece of sand paper. the meter probe needs to be wet sanded once in a while. If you can smell the Ozone in the water the meter reading should be at least 700 ORP. **Q: Does the meter have an on & off switch?** A: FROM HM DIGITAL: Yes, the ORP-200 have an on/off switch and it's located on the front of the unit. In order to properly turn the unit on, you will first want to remove the cap and then press the `ON/OFF' button. The display will become active. For more information, www.tdsmeter.com/products/orp200.html ## Frequently Bought Together - HM Digital ORP-200 Waterproof Professional Series Handheld, White/Green, ORP Meter - Variispeed, Fan Speed Controller, Black - Virkon Aquatic Tablets. 50 x 5 Gram. Broad Spectrum Virucidal Disinfectant --- ## 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.com.pa/products/79775933-orp-200-waterproof-orp-meter-measures-oxidation-reduction-potential-temperature](https://www.desertcart.com.pa/products/79775933-orp-200-waterproof-orp-meter-measures-oxidation-reduction-potential-temperature) --- *Product available on Desertcart Panama* *Store origin: PA* *Last updated: 2026-05-19*