Envig Gen4 Digital 9-in-1 Water Tester TOC, COD, TDS, TURB, UV254, GH, EC, SAL, Temp

Is your water safe to drink? Most water testers only measure TDS (Total Dissolved Solids)—but TDS alone tells just a fraction of the story. This 9-in-1 water quality analyzer goes far beyond basic testing, measuring TOC (Total Organic Carbon), COD (Chemical Oxygen Demand), TDS, EC (Electrical Conductivity), Turbidity, UV254, Salinity, Hardness, and Temperature—giving you the complete picture of your water quality in just 2 seconds. Using advanced UV spectral sensing technology, this 4th-generation device delivers lab-grade readings that previously required expensive professional equipment or inconvenient mail-in tests.

Each parameter reveals something different about your water. <b>TOC</b> measures organic matter from natural sources like decaying vegetation and algae—high levels can react with chlorine to form unwanted disinfection byproducts (DBPs), making it critical to monitor before treating well water. <b>COD</b> detects oxidizable substances including ammonia and nitrites that TOC may miss. <b>UV254</b> measures UV light absorption, a reliable indicator of dissolved organic compounds used by municipal water treatment plants worldwide. <b>Turbidity</b> reveals water clarity and suspended particles—essential for verifying filter performance. <b>EC</b> (Electrical Conductivity) indicates total ionic content, invaluable for hydroponics, aquariums, and monitoring water treatment systems. <b>Salinity</b> tracks salt levels for pools, spas, aquariums, and water softener performance.

The pocket-sized design (6.85" × 1.47") features a bright 1.8" color IPS display readable in any lighting condition, protected by a durable silicone cover. The high-precision multispectral sensor and bubble-free probe design ensure stable, accurate readings every time. An intuitive color-coded scoring system (Blue/Green/Yellow/Red) instantly tells you if your water rates Excellent, Good, Fair, or Poor—no chemistry degree required. Perfect for testing tap water, well water, bottled water, RV tanks, pool and spa water, aquariums, hydroponics, or verifying your water filter system is performing as expected.

Feature Highlight

9-in-1 Comprehensive Water Analysis – Go beyond basic TDS testing. Measure 9 parameters in just 2 seconds: TOC (Total Organic Carbon), COD (Chemical Oxygen Demand), UV254, Turbidity, EC (Electrical Conductivity), TDS, Salinity, Hardness, and Temperature. The first consumer device to offer instant organic matter testing—revealing what standard TDS meters completely miss.

TOC, COD & UV254: The Organic Indicators – TDS only measures dissolved minerals. TOC reveals organic matter levels from natural pollutants like decaying or living organism and man-made organic pollutants like household chemicals for yard treatment or weed control. COD detects oxidizable substances like ammonia and nitrites. UV254 measures UV absorbance, the same method used by municipal treatment plants to monitor organic compound levels and treatment effectiveness.

EC, Turbidity & Salinity: Complete Water Insight – EC (Electrical Conductivity) shows total ionic content, critical for hydroponics nutrient management, aquarium health, and RO system performance. Turbidity measures water clarity and particle levels—instantly verify if your filter is working. Salinity monitoring is essential for saltwater pools, reef tanks, and tracking water softener output.

Lab-Grade Accuracy, Instant Results – Powered by high-precision UV multispectral sensing technology, this 4th-generation device delivers professional-level readings without expensive lab fees or week-long waits. The bubble-free probe design ensures stable, reliable measurements. Recalibrate easily with distilled water for continued accuracy.

Smart Display, Portable Design – The bright 1.8" color IPS screen shows instant color-coded water quality scores: Blue (Excellent), Green (Good), Yellow (Fair), Red (Poor). Pocket-sized (6.85" × 1.47"). Perfect for tap water, well water, RV tanks, pools, spas, aquariums, hydroponics—and verifying water filter performance before and after filtration.

Specification

Display: 1.8" Color IPS Screen

Dimensions: 6.85" × 1.47"

Water sample: tap water, filtered water, bottled water, underground water, surface water (not sewage)

Operating temperature: 50 - 100 degree Fahrenheit

TOC: range: 0-20mg; resolution: 0.1mg; repetitiveness: 士0.2mg; accuracy:10% F.S.

COD: range: 0-20mg; resolution: 0.1mg; repetitiveness: 士0.2mg; accuracy:10% F.S.

UV254: range: 0-0.2au/cm; resolution: 0.0001au/cm; repetitiveness: 士0.001au/cm; accuracy:10% F.S.

Turbidity: range: 0-20NTU; resolution:  0.1NTU; repetitiveness: 士0.2NTU; accuracy:10% F.S.

TDS: range: 0-20000ppm; resolution:  1ppm; repetitiveness: 士10ppm; accuracy: 5%F.S.

EC: range: 0-60000us/cm; resolution: 1us/cm; repetitiveness: 士20uS/cm; accuracy: 5%F.S.

Salinity: range: 0.1-4%; resolution: 0.1%(1ppt); repetitiveness: 士0.2%; accuracy: 5%F.S.

Hardness:  range: 0-1000ppm; resolution: 1ppm, repetitiveness:士10ppm (only for tap water testing and as reference)