Auto Calibration PH/TDS/EC/Temperature Multifunctional Testing Pen

High Accuracy & Water Quality Tester

Product Overview

The Auto Calibration Multifunctional Testing Pen is an all-in-one water quality tester designed for professionals and everyday users alike. This device offers precise measurements of pH, TDS (Total Dissolved Solids), EC (Electrical Conductivity), and Temperature, ensuring you always have accurate data about your water quality. With its user-friendly design, automatic calibration, and high accuracy, it's perfect for laboratory, agricultural, aquaculture, hydroponics, home, and industrial applications.

Key Features

• 4-in-1 Multifunctional Design
  Measure pH, TDS, EC, and Temperature with one compact, portable device.

• Automatic Calibration
  Effortlessly calibrate the meter with a single button press. Ensures reliable and accurate readings every time.

• High Accuracy & Precision
  Advanced sensor technology provides fast and highly precise measurements.

• Large LCD Display
  Bright, easy-to-read backlit screen displays all parameters simultaneously.

• Simple Operation
  Intuitive interface with dedicated buttons for ON/OFF, HOLD, calibration, and temperature unit conversion (°C/°F).

• Wide Measurement Range
  Suitable for various water quality testing scenarios—drinking water, pools, spas, hydroponics, aquariums, and more.

• Automatic Temperature Compensation (ATC)
  Ensures accurate readings under different temperature conditions.

• Portable & Durable
  Lightweight, handheld design with a protective cap, ideal for on-the-go testing.

Specifications

• Calibration: Automatic (1-point or 3-point)

• Display: Large backlit LCD

• Power Supply: 2 × AAA batteries (not included)

• Auto-off Function: Yes

Package Includes

• 1 × Multifunctional Water Quality Testing Pen

• 1 × User Manual

• 1 × Protective Storage Case

Applications

• Drinking water testing

• Aquarium and fish tank monitoring

• Hydroponics and gardening

• Swimming pools and spas

• Laboratory and scientific use

• Industrial water treatment

Why Choose Our Water Quality Tester?

• Fast, accurate, and reliable measurements

• Easy to use—no technical expertise required

• Durable build for long-lasting performance

• Ideal for home, professional, and industrial use

Take control of your water quality today with our Auto Calibration PH/TDS/EC/Temperature Multifunctional Testing Pen!

Shenzhen Yieryi Technology Co., Ltd Company Profile

Company Overview

Shenzhen Yieryi Technology Co., Ltd was established in 2012 and is located in the Economic Development Zone of Shenzhen City, Guangdong Province. Leveraging our superior geographic location, convenient transportation facilities, outstanding research and development capabilities, exquisite craftsmanship, and comprehensive testing equipment, we are dedicated to providing high-quality measurement instruments and solutions to customers worldwide.

Our Products

As a professional manufacturer of measurement instruments, Shenzhen Yieryi Technology Co., Ltd primarily produces the following products:

· Portable and Digital Refractometers

· Pen-Type and Online Monitoring pH Meters

· DO Meters, TDS Meters, ORP Meters, EC Water Quality Testers

· Soil Testers

· Temperature and Humidity Meters

Our products are widely used in various fields, including beer brewing, liquor production, sugar manufacturing, fruit juice processing, agriculture, aquarium maintenance, hydroponics, environmental protection, food safety, education, military, and technology, catering to the diverse needs of different industries.

Why Choose Shenzhen Yieryi Technology Co., Ltd

Choosing Shenzhen Yieryi Technology Co., Ltd means you will enjoy the following unique advantages:

1. Excellence in Product Quality

· Strict Quality Control: All our products are certified under the ISO9001:2008 quality management system and possess ROHS, CE, and FCC certifications. Some products also hold design patents. Every product undergoes rigorous testing and calibration before leaving the factory to ensure high precision and reliability.

· High-Quality Materials and Craftsmanship: Located in Shenzhen’s Economic Development Zone, we are equipped with advanced manufacturing facilities and an experienced craftsmanship team, ensuring that each product boasts superior durability and performance.

2. Comprehensive Product Line

· Diverse Measurement Instruments: We specialize in manufacturing a wide range of products, including portable and digital refractometers, pen-type and online monitoring pH meters, TDS meters, ORP meters, EC testers, DO meters, soil pH and temperature & humidity meters, among others, to meet the diverse needs of various industries.

· Wide Application Fields: Our products are extensively used in beer brewing, liquor production, sugar manufacturing, fruit juice processing, agriculture, aquarium maintenance, hydroponics, environmental protection, food safety, education, military, and technology sectors, ensuring that you can find suitable solutions across different industries.

3. Technological Innovation and R&D

· Strong R&D Team: We boast a professional technical research and development team that continuously pursues technological innovation. We collaborate with multiple research institutions to develop new products, ensuring that our offerings remain at the forefront of the industry.

· Patent Protection: Some of our products feature unique designs and functionalities protected by design patents, enhancing their competitiveness and market uniqueness.

4. High-Quality Customer Service

· Professional Customer Support: Our customer service team is dedicated to providing timely and effective support, ensuring that you have peace of mind during the entire usage process.

· Personalized Solutions: We offer customized products and services tailored to the specific needs of our clients, accommodating various special requirements.

· Global Logistics Network: With a well-established global distribution system, we ensure that our products are delivered quickly and safely to customers around the world.

5. Reliable Market Reputation

· Stable Global Market Presence: Since starting our export business in 2013, our products have been successfully exported to Europe, America, Southeast Asia, and the Middle East, achieving an annual sales volume of USD 5-10 million. We have earned the trust and praise of customers worldwide.

· Brand Influence: Our brand “YIERYI,” registered in 2016, has consistently focused on the theme of health. With a design that is simple, stylish, and portable, we are committed to bringing health concepts into every home and every corner of the world.

6. Sustained Corporate Spirit

· Unity, Diligence, Exploration, and Innovation: We firmly adhere to the corporate spirit of “Unity, Diligence, Exploration, and Innovation,” continuously striving for excellence, exceeding customer expectations, and building long-term partnerships.

Our Vision

Shenzhen Yieryi Technology Co., Ltd is committed to driving business growth and success for our clients through continuous innovation and exceptional service. We aim to establish the “YIERYI” brand as a globally recognized health technology brand, promoting health concepts into every home and every corner of the world.

Conclusion

By choosing Shenzhen Yieryi Technology Co., Ltd, you will receive high-quality products, advanced technical support, comprehensive customer service, and a reliable partnership. Let’s work together to create a prosperous future and move towards a more prosperous and sustainable tomorrow!