--- product_id: 83970628 title: "pH/EC/Temperature Meter ATC 3 in 1 Waterproof Pen Type Water Quality Combo Multi-Parameter Tester Monitor Analyzer Acidometer, Test Kit for Aquariums Hydroponics Pool Spa Drinking Purity" brand: "gain express" price: "Rp2309660" currency: IDR in_stock: true url: https://www.desertcart.id/products/83970628-ph-ec-temperature-meter-atc-3-in-1-waterproof-pen store_origin: ID region: Indonesia --- # EC up to 19990 µS/cm Precise pH ±0.1 accuracy Temp range 0-50°C with ATC pH/EC/Temperature Meter ATC 3 in 1 Waterproof Pen Type Water Quality Combo Multi-Parameter Tester Monitor Analyzer Acidometer, Test Kit for Aquariums Hydroponics Pool Spa Drinking Purity **Brand:** gain express **Price:** Rp2309660 **Availability:** ✅ In Stock ## Summary > 💧 Master your water quality game with precision and ease! ## Quick Answers - **What is this?** pH/EC/Temperature Meter ATC 3 in 1 Waterproof Pen Type Water Quality Combo Multi-Parameter Tester Monitor Analyzer Acidometer, Test Kit for Aquariums Hydroponics Pool Spa Drinking Purity by gain express - **How much does it cost?** Rp2309660 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/83970628-ph-ec-temperature-meter-atc-3-in-1-waterproof-pen) ## Best For - gain express enthusiasts ## Why This Product - Trusted gain express brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ready for Any Environment:** Waterproof design with protective cap and hard case—perfect for aquariums, hydroponics, pools, and labs. - • **Smart Temperature Compensation:** Automatic Temperature Compensation (ATC) guarantees consistent results regardless of environment. - • **Triple-Check Your Water Quality:** pH, EC, and Temperature all in one sleek pen for ultimate convenience. - • **Precision That Professionals Trust:** High accuracy readings (±0.1 pH, ±2% EC, ±1°C) ensure reliable data every time. - • **Effortless Calibration & Portability:** Includes calibration powders, mini screwdriver, and runs on common AG13 batteries—calibrate and go anywhere. ## Overview This 3-in-1 waterproof pen-type meter measures pH (0.00-14.00), electrical conductivity (0-19990 µS/cm), and temperature (0-50°C) with high accuracy and automatic temperature compensation. Designed for professionals managing aquariums, hydroponics, pools, and labs, it features easy calibration, a protective cap, backlight display, and comes complete with calibration solutions and batteries for immediate use. ## Description pH/EC/Temperature Meter ATC 3 in 1 Waterproof Pen Type Water Quality Combo Multi-Parameter Tester Monitor Analyzer Acidometer, Test Kit for Aquariums Hydroponics Pool Spa Drinking Purity ## Features - MEASURING RANGE: 0.00~14.00pH / EC 0~19990uS/cm / Temp 0~50°C (32~122°F) - FEATURES: with ATC (Automatic temperature compensation), Switchable °C/°F temperature unit, easy calibration and operation and comes with protective cap - ACCURACY: ±0.1pH / EC ±2%F.S. / Temp ±1°C (±2°F) - Comes with pH calibration powder (pH 4.01 , pH6.86 and pH9.18) and EC calibration solution (EC 1413) - POWER SUPPLY: 4 x 1.5V (AG13) ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Gain Express Holdings Ltd | | Part number | WQM-241 | | Batteries | 4 LR44 batteries required. | | Item model number | WQM-241 | | Material | PE_(Polyethylene) | | Item Package Quantity | 1 | | Batteries included? | No | | Batteries Required? | No | | Battery Cell Type | Zinc Carbon | ## Product Details - **Brand:** GAIN EXPRESS - **pH range:** 0.00~14.00pH - **Recommended uses for product:** aquariums, hydroponics, pool, spa, drinking water purity - **Unit count:** 1.0 Count - **Manufacturer:** Gain Express Holdings Ltd ## Images ![pH/EC/Temperature Meter ATC 3 in 1 Waterproof Pen Type Water Quality Combo Multi-Parameter Tester Monitor Analyzer Acidometer, Test Kit for Aquariums Hydroponics Pool Spa Drinking Purity - Image 1](https://m.media-amazon.com/images/I/71MM-gSku4L.jpg) ![pH/EC/Temperature Meter ATC 3 in 1 Waterproof Pen Type Water Quality Combo Multi-Parameter Tester Monitor Analyzer Acidometer, Test Kit for Aquariums Hydroponics Pool Spa Drinking Purity - Image 2](https://m.media-amazon.com/images/I/71+rS-Mk1eL.jpg) ![pH/EC/Temperature Meter ATC 3 in 1 Waterproof Pen Type Water Quality Combo Multi-Parameter Tester Monitor Analyzer Acidometer, Test Kit for Aquariums Hydroponics Pool Spa Drinking Purity - Image 3](https://m.media-amazon.com/images/I/718Npc3ohFL.jpg) ![pH/EC/Temperature Meter ATC 3 in 1 Waterproof Pen Type Water Quality Combo Multi-Parameter Tester Monitor Analyzer Acidometer, Test Kit for Aquariums Hydroponics Pool Spa Drinking Purity - Image 4](https://m.media-amazon.com/images/I/71a0N7v36lL.jpg) ![pH/EC/Temperature Meter ATC 3 in 1 Waterproof Pen Type Water Quality Combo Multi-Parameter Tester Monitor Analyzer Acidometer, Test Kit for Aquariums Hydroponics Pool Spa Drinking Purity - Image 5](https://m.media-amazon.com/images/I/61SxepxpSJL.jpg) --- ## 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.id/products/83970628-ph-ec-temperature-meter-atc-3-in-1-waterproof-pen](https://www.desertcart.id/products/83970628-ph-ec-temperature-meter-atc-3-in-1-waterproof-pen) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-05-08*