The company’s product catalog currently spans a broad range. Its online store lists pH meters, soil EC meters, soil meters, dissolved-oxygen meters, salinity meters, irrigation timers, hydroponic growing systems, hydrogen-water meters, EC/TDS meters, ORP meters, refractometers, grain-moisture meters, and other instruments.

2012: Company founded

YIERYI’s corporate history traces the underlying manufacturing business to 2012 in Shenzhen, Guangdong Province. The company describes itself as a manufacturer specializing in measurement instruments, with an early product portfolio centred on portable testing equipment for water, soil, food and agricultural products, moisture, and temperature. Shenzhen is a significant location for this type of business due to the city’s extensive electronics, instrumentation, and manufacturing ecosystem.

2013: International expansion

According to YIERYI, the company began its export business in 2013, selling into overseas markets while continuing to serve the Chinese market. It identifies Europe, North America, Southeast Asia, and the Middle East among its export markets. The company also states that its products were being used across areas including brewing, agriculture, aquaculture, food processing, and environmental applications.

2015: Quality-system certification

The company’s official history states it obtained ISO 9001:2008 quality-management-system certification in 2015. This certification concerns an organisation’s quality-management system rather than proving that every individual product is highly accurate.

2016: YIERYI brand

The company states the YIERYI trademark and brand were registered in 2016. It describes the brand concept as being built around health, with design characteristics emphasising technology, fashion, simplicity, and portability. This marked a shift from operating solely as an instrument manufacturer towards building a recognisable consumer and professional brand.

2017: International certifications

YIERYI’s corporate history states that it obtained RoHS and CE certifications in 2017, supporting its ability to sell products in international markets. The exact certification status varies by product, so CE and RoHS should not be interpreted as blanket certification of the entire YIERYI catalogue.

2018–2019: Product diversification

The company reports expanding its technology and product portfolio during 2018–2019, particularly into water-quality measurement, soil analysis, grain-moisture measurement, and agricultural applications. This period appears to have been important in transforming YIERYI from a relatively focused measuring-instrument manufacturer into a broader agriculture, water, and environmental measurement brand.

2020 onward: Sensors and smart measurement

YIERYI states that around 2020 it achieved further advances in its measurement technology and obtained various invention and utility-model patents. More recent products show an increasing emphasis on Bluetooth, Wi-Fi, app-connected measurement, multi-parameter meters, automatic monitoring, smart irrigation, and hydroponics. This represents an evolution from traditional handheld meters towards connected measurement and smart gardening.

YIERYI’s catalogue is considerably broader than the average pH meter brand. Its products can broadly be divided into several categories.

Water-quality meters

Water-quality measurement is arguably YIERYI’s traditional core. Products include instruments for measuring pH, TDS, EC (electrical conductivity), ORP, salinity, temperature, dissolved oxygen, chlorine, and other water-quality parameters. Some products combine several of these functions into a single instrument. The current product catalogue includes multi-function water-quality meters for applications such as pools, aquariums, drinking water, and hydroponics.

Soil-testing equipment

Soil analysis is another major category. YIERYI sells meters designed to measure combinations of soil pH, soil moisture, EC/fertility, temperature, light, humidity, and NPK/nutrient-related parameters. Its current catalogue includes 6-in-1, 7-in-1, and other multi-parameter soil testers. These products target both hobby gardeners and agricultural users.

Hydroponics

YIERYI has increasingly moved into hydroponic growing systems. Its catalogue includes indoor hydroponic gardens with LED grow lights, automatic watering, multiple planting pods, water-quality monitoring, and smart controls. The company currently sells systems ranging from small indoor units to larger multi-pod hydroponic gardens. This expansion is strategically notable because the company’s traditional expertise in water measurement naturally connects with hydroponics.

Smart irrigation

YIERYI also sells garden-irrigation equipment such as programmable water timers, Wi-Fi irrigation controllers, Bluetooth controllers, Zigbee irrigation devices, automatic watering systems, and soil-moisture sensors. Some products integrate with smartphone and smart-home ecosystems such as Tuya/Smart Life. This places YIERYI in the broader smart gardening and connected home agriculture market.

Refractometers

Refractometers are another long-standing category. They can be used to measure properties such as Brix, sugar concentration, specific gravity, alcohol-related measurements, honey moisture, and other refractive-index-based measurements. YIERYI’s historical catalogue includes handheld and digital refractometers aimed at applications such as brewing, food processing, and agricultural products.

Food and brewing measurement

The company also markets specialised meters for food applications. Examples include pH meters designed for meat, bread, cheese, sourdough, canning, and other food products. Its current “hot products” catalogue includes dedicated food pH meters. This is a natural extension of YIERYI’s measurement-instrument heritage.

Aquaculture and aquarium equipment

YIERYI identifies aquaculture and aquariums as important application areas. Measurement products can be used for parameters such as pH, salinity, temperature, dissolved oxygen, EC/TDS, and ORP. The company specifically lists aquaculture, aquariums, and water-quality testing among its application areas.

YIERYI has a diverse customer base because its products sit between consumer electronics and professional instrumentation.

Consumer users

Examples include home gardeners, indoor gardeners, aquarium owners, swimming-pool owners, hydroponic hobbyists, home brewers, and coffee or food enthusiasts.

Professional users

Its instruments are also marketed towards farmers, agricultural businesses, hydroponic farms, aquaculture operators, food processors, breweries, laboratories, educational institutions, and environmental applications. The company explicitly lists agriculture, aquaculture, hydroponics, food, education, and environmental protection among its application fields.

YIERYI describes its brand philosophy around health and measurement technology. Its stated brand values include:

• Precision: The company emphasises accurate and reliable measurement as a foundation for making informed decisions.
• Innovation: YIERYI positions itself as an R&D-oriented manufacturer that develops new measurement and monitoring technologies.
• Ease of use: The company emphasises making measurement technology relatively accessible rather than restricting it to laboratories.
• Health: “Health” is repeatedly mentioned in the company’s description of the YIERYI brand. Its stated ambition is to bring health-related technology into everyday environments.

Public information regarding the corporate structure requires careful interpretation. YIERYI’s own websites identify Shen Zhen Yage Technology Co., Ltd. as the underlying company. However, other YIERYI-facing pages use names such as Shenzhen Yieryi Technology Co., Ltd., Shen Zhen Yago Technology Co., Ltd., and YAGO TECHNOLOGY LIMITED.

The company’s current website lists YAGO TECHNOLOGY LIMITED in its contact information, while another official store page identifies Shen Zhen Yage Technology Co., Ltd. as the company. Therefore, it is most accurate to describe YIERYI as a brand associated with a Shenzhen-based manufacturing and export business, rather than asserting without additional corporate-registry evidence that every similarly named company is legally identical.

YIERYI describes itself as an international exporter. Its company materials state that exports began in 2013 and that products have reached markets including Europe, North America, Southeast Asia, and the Middle East. A company profile also claims annual sales in the range of US$5–10 million and a workforce exceeding 100 people, although these figures are company and B2B-profile claims rather than independently audited financial information.

YIERYI also has visible retail and distribution activity in Southeast Asia. For example, its Thailand Shopee storefront sells YIERYI meters and states it maintains shipping inventory in both Thailand and China.

YIERYI states its manufacturing operation has worked under an ISO 9001 quality-management system and that its products include CE and RoHS certifications. The company also says products are tested during production, calibrated, and checked before being promoted or shipped.

An important distinction is that ISO 9001 is not proof that a particular meter is laboratory-grade accurate. For a measurement instrument, actual accuracy depends on the specific model, sensor, calibration procedure, reference standards, environmental conditions, and intended application. Consequently, when evaluating YIERYI for professional or laboratory use, the individual model’s specifications and calibration documentation matter significantly more than the brand-level ISO claim.

YIERYI is not purely a consumer retail brand. The company explicitly offers B2B and OEM services, including customised products and packaging. Its B2B programme describes a process involving requirements analysis, proposal development, production, packaging, shipping, and after-sales support.

Older company material also describes capabilities such as custom logos, laser printing and engraving, customised colours, new moulds, customised products based on customer samples, and customised packaging. This suggests YIERYI operates partly as an OEM/ODM-style manufacturer, in addition to selling products under its own brand.

YIERYI sits between inexpensive consumer measurement devices and specialised professional instrumentation. Its products are generally aimed at providing relatively sophisticated measurements in compact, accessible formats.

• Traditional instrument: Laboratory pH meter intended for a professional laboratory environment.
• YIERYI-style product: Portable digital pH meter for gardening, aquariums, food, hydroponics, and water testing.
• Newer YIERYI direction: Wi-Fi/Bluetooth multi-parameter meter for continuous monitoring and smartphone connectivity.
• Newest broader direction: Smart hydroponic garden, irrigation, and sensors forming a complete home-growing ecosystem.

This progression is arguably the most important aspect of the brand’s development.

YIERYI’s product strategy increasingly resembles an ecosystem rather than a collection of unrelated meters.

• Soil: Soil pH, moisture, EC/fertility, temperature, light, and NPK-related testing.
• Water: pH, EC, TDS, salinity, ORP, dissolved oxygen, chlorine, and temperature.
• Growing: Hydroponic gardens, grow lights, water circulation, automatic irrigation, and soil sensors.
• Connectivity: Bluetooth, Wi-Fi, smart controllers, and mobile apps.

This creates a logical chain of measure, understand, control, and automate, which indicates the strategic direction of the YIERYI brand.

YIERYI has a relevant presence in Southeast Asia because its products are well suited to tropical gardening, hydroponics, aquaculture, aquarium keeping, agriculture, swimming pools, and water-quality monitoring.

Its Thailand Shopee presence currently offers products such as dissolved-oxygen meters, turbidity meters, pH/EC/temperature meters, and other water-testing equipment. The Thai storefront also states that it has inventory and shipping arrangements in Thailand and China and offers wholesale support.

Based on publicly available product ranges and company information, YIERYI’s major strengths include:

• Broad measurement portfolio: Rather than specialising exclusively in pH, the company covers pH, EC, TDS, ORP, salinity, DO, soil, refractometry, and other measurements.
• Strong agriculture and gardening connection: The combination of soil meters, water meters, irrigation controllers, and hydroponic systems creates a coherent product ecosystem.
• Portable form factors: Many products are designed as handheld or compact instruments, consistent with the company’s stated emphasis on portability.
• Relatively accessible technology: The company attempts to bring measurements traditionally associated with professional instruments into products usable by gardeners, aquarium owners, and other consumers.
• OEM capability: Its B2B/OEM offering provides another business channel beyond direct retail.

YIERYI should not automatically be considered equivalent to high-end laboratory instrumentation simply because it sells sophisticated-looking meters. When evaluating a specific product, attention should be paid to accuracy, resolution, calibration method, calibration standards supplied, sensor/electrode quality, repeatability, temperature compensation, IP rating, probe replacement availability, data logging, calibration intervals, warranty, and regulatory certification for the specific model.

This is particularly important for pH, dissolved oxygen, and other electrochemical measurements. The company’s catalogue contains everything from relatively simple consumer meters to considerably more sophisticated multi-parameter monitoring equipment, so product quality and capabilities can vary substantially from model to model.

YIERYI’s visual and product identity can broadly be characterised as technology, portability, measurement, gardening, and health. The company itself describes the design language as “technology, fashion, simplicity and portability”. Its newer product portfolio expands that identity into smart gardening and connected agriculture, rather than remaining solely a traditional scientific-instrument brand.

The chronology above is based primarily on YIERYI’s published corporate history rather than independently audited historical records.

YIERYI is best understood as a Shenzhen-origin Chinese measurement-technology brand that has expanded from traditional portable testing instruments into water-quality monitoring, agricultural/soil measurement, smart irrigation, and hydroponics. Its roots are in measurement instruments, particularly pH, TDS, EC, ORP, dissolved oxygen, salinity, and refractometry. Since establishing the YIERYI brand in 2016, the company has broadened towards consumer-friendly health, gardening, and environmental technology.

The most significant aspect of YIERYI’s evolution is its move from instrument manufacturer to measurement brand to smart gardening and water ecosystem. Today, its portfolio covers both relatively simple handheld testers and increasingly connected products such as Bluetooth/Wi-Fi meters, automated irrigation controllers, and indoor hydroponic gardens. YIERYI is a Chinese measurement and smart-gardening technology brand specialising in accessible water, soil, agricultural, food, and environmental testing equipment, with an increasingly broad focus on connected gardening and hydroponic systems.