SHEN ZHEN YIERYI Technology Co., Ltd
                                                                                                           
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14 Years
Since 2012
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Tuya Smart WiFi Online Monitoring 5 in 1 High Accuracy Digital PH Meter with 0.00-14.00pH and 0-19900PPM Water Quality Tester

Price Negotiable
Price: $28.82-30.13
MOQ: 20
Delivery Time: Negotiable
Brand: YIERYI
Product Description
Tuya Smart WiFi Online Monitoring 5-in-1 Water Tester
Comprehensive Water Quality Measurement
This advanced water tester provides accurate measurements for five critical water parameters: pH, EC, TDS, Specific Gravity, and Temperature. With WiFi connectivity and Tuya Smart compatibility, it offers real-time monitoring and data tracking.
Measurement Ranges
  • pH: 0.00-14.00 pH
  • EC: 0-19900 μS/cm (0-199.0 mS/cm)
  • TDS: 0-19900 ppm (0-199.0 ppt)
  • Specific Gravity: 0.990-1.400
  • Temperature: 0-50°C (32°F-122°F)
Technical Specifications
  • Resolution: pH: 0.01 pH | TDS: 1ppm (<1999ppm), 10ppm (>1999ppm) | EC: 1μS/cm (<1999μS/cm), 10μS/cm (>1999μS/cm) | Temp: 0.1°C
  • Accuracy: pH: ±0.03 | TDS/EC: ±2% F.S. | Temp: ±1.0°C
Tuya Smart WiFi Water Tester front view Water tester displaying measurement readings Close-up of tester interface Tester in use measuring water sample
Product Specifications
Item Value
Warranty 1 year
Type pH meter
Brand YIERYI
Model PH-991W
Dimensions 100mm × 75mm × 22mm
Material Plastic
Compatible Apps Tuya / Smart Life / YIERYI
Manufacturer Information

Shenzhen Yage Technology Co., Ltd, established in 2012, is a professional manufacturer of high-quality water testing instruments located in Guangdong, China. Our product line includes portable and digital refractometers, pH meters, TDS meters, ORP meters, EC testers, and soil moisture meters.

Our brand "YIERYI" focuses on health-oriented design with elements of technology, fashion, and portability. All products undergo rigorous testing and calibration before release. We hold ISO9001:2008 Quality System Certification and our products meet ROHS and CE standards.

With over 100 employees including R&D, production, and customer service teams, we export to Europe, America, Southeast Asia, and the Middle East with annual sales of $5-10 million USD.

Frequently Asked Questions
Where are we located?
Based in Guangdong, China, serving global markets including Europe, Americas, Asia, and Africa.
How do we ensure quality?
Pre-production samples and final inspection before shipment guarantee product quality.
What products do we offer?
Specializing in pH meters, soil testers, refractometers, scales, and moisture meters.
Why choose us?
We combine quality manufacturing with innovative design and comprehensive testing.
What services do we provide?
Flexible payment options (T/T, L/C, Credit Card, PayPal) and worldwide shipping (FOB, CFR, CIF, EXW).

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company SHEN ZHEN YIERYI Technology Co., Ltd
Location Room 302 Ping Ji Road 303 ping hu street Long Gang Districe Shzen Zhen City Guang Dong province China
Contact Person Feng

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