Blog

DUOYI Refrigerant Analyzer / AIR CONDITIONING ...

DUOYI  Refrigerant Analyzer / AIR CONDITIONING DIAGNOSTIC TESTER  2025  New  Measure high/low side pressure and display evaporation and condensation temperature2.Measure high/low side temperature and display superheat and subcooling with two...

DUOYI digital manifold / leak detector action f...

Duoyi manifold Affordable and easy to use 2025 NEW

Make Digital Manifolds Affordable 💰 Duoyi dy519 ✅ Pressure Holding Test 🔧 ✅ Vacuum Ratio Display 📊 ✅ Accurate Readings 🎯 🔥 #DuoyiManifold #HVACTools #Refrigeration #DigitalManifold

Duoyi’s First Successful Exhibition at the 2025...

Guangzhou Duoyi Electronics Co., Ltd. participated in the Beijing China International Exhibition and will attend its first exhibition in 2025. The next event will be the China hvac Refrigeration Expo...

Duoyi Successfully Concludes the 2024 Trade Sho...

Duoyi to Participate in the 2025 China Shanghai Refrigeration Expo Exciting new products will be showcased, including advanced digital manifolds, refrigerant leak detectors, refrigerant quality analyzers, and more. We welcome...

Quick overview of all DUOYI ground resistance t...

DY4100: 3-wire ground resistance, lower price. DY4100A: 3-wire ground resistance, photovoltaic voltage, more convenient to use. DY4100B: 4-wire ground resistance, photovoltaic voltage, soil testing, easy to use. DY4300: 4-wire ground...