Precision Measurement for Every Industry

Fuzhou Hedao Trade Co., Ltd is a leading manufacturer of high-accuracy refractometers, pH meters, TDS testers, moisture analyzers, thermometers, and environmental monitoring instruments trusted by laboratories, farms, food producers, and industrial facilities worldwide.

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$Digital Refractometer$

Digital Refractometers

Brix, salinity, alcohol, honey, milk & industrial fluid analysis

pH & Water Quality Meters

From portable testers to multi-parameter digital systems

Moisture Analyzers

For soil, grain, wood, food, textiles, and industrial materials

About Hedao Supply

Fuzhou Hedao Trade Co., Ltd is a professional manufacturer and exporter of precision measurement instruments based in China. With years of experience in R&D, production, and global distribution, we deliver reliable, high-performance tools for water analysis, agriculture, food safety, industrial processing, and environmental monitoring.

Our product line includes digital refractometers, pH meters, TDS/EC meters, moisture analyzers, thermometers, thickness gauges, CO₂ monitors, and more — all engineered for accuracy, durability, and ease of use.

ISO Certified OEM/ODM Support Global Shipping 24/7 Support

Our Product Range

Explore our comprehensive catalog of precision instruments designed for laboratory, industrial, agricultural, and field applications.

$Digital Refractometer$

Digital Refractometer

Brix, salinity, alcohol, and industrial fluid measurement with automatic temperature compensation.

• 0.1% Brix accuracy
• IP65 waterproof
• Backlit LCD

Bluetooth pH Meter

Wireless data transmission to smartphone apps for real-time monitoring and logging.

• Tuya Smart App compatible
• ±0.01 pH accuracy
• Replaceable electrode

Grain Moisture Meter

Fast, non-destructive moisture analysis for wheat, rice, corn, soybeans, and more.

• 3-5 second readout
• 50+ crop calibration
• Data hold function

Soil pH & Moisture Meter

2-in-1 digital tester for agriculture, gardening, and greenhouse management.

• Dual sensor probe
• No batteries required
• Durable stainless steel

TDS/EC Meter

Measure water purity, nutrient concentration, and conductivity in hydroponics, aquaculture, and labs.

• 0–2000 ppm range
• Auto-ranging
• Compact & portable

IR Thermometer

Non-contact temperature measurement for food, HVAC, automotive, and industrial use.

• -50°C to 550°C range
• Laser targeting
• Max/Min/Diff functions

WiFi CO₂ Monitor

Smart indoor air quality monitor with Tuya app, PM2.5, HCHO, and TVOC detection.

• Real-time graphing
• Data logging
• Wall-mount design

Halogen Moisture Analyzer

High-precision loss-on-drying (LOD) moisture balance for labs and QC departments.

• 0.001% resolution
• 50–160°C heating
• RS232 output

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Why Choose Hedao Instruments?

Engineered for accuracy, durability, and ease of use across industries.

High Accuracy

Calibrated sensors and digital precision ensure reliable results every time.

Fast Response

Instant readings with digital displays and data hold functions for efficiency.

Global Support

Multilingual team ready to assist with technical queries and orders.

OEM/ODM Services

Custom branding, packaging, and product development available.

Frequently Asked Questions

Do you offer OEM/ODM services?

Yes, we provide full OEM and ODM support including custom logos, packaging, software, and hardware modifications.

What is your minimum order quantity (MOQ)?

Most products have an MOQ of 100 units, but we can accommodate smaller trial orders upon request.

How do I calibrate a pH meter?

Use standard buffer solutions (pH 4.01, 7.00, 10.01). Rinse the electrode, immerse in buffer, and follow the device’s calibration mode instructions.

Can I get a sample before placing a bulk order?

Yes, samples are available for most products. Contact us for pricing and shipping details.

Get in Touch

Reach out for quotes, technical support, or partnership opportunities.

Josie Wu

Marketing Manager

Email: sales@hedao-supply.com

WhatsApp/WeChat: +86 13395087998

Skype: josie8601

Ms Betty

Service Department

Email: service@hedao-supply.com

Phone: +86 591 88280227

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