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Buy Hydrometers for Aquariums

Shop top-rated hydrometers for aquariums to monitor water salinity and specific gravity. Perfect for freshwater and saltwater tanks. Find your ideal hydrometer today!

Found 44 items

  • Features
  • 7-in-1 water analysis
  • WiFi connectivity
  • APP control
  • Features
  • 6-in-1 water quality testing
  • Mobile app connectivity
  • Real-time online monitoring
  • Features
  • Measures dissolved oxygen
  • PH level detection
  • Salt content analysis
  • Features
  • Online water quality monitoring
  • WIFI connectivity
  • ORP/PH measurement
  • Features
  • Multi-functional controller
  • Temperature monitoring
  • PH level detection
  • Features
  • High precision measurement
  • Automatic calibration
  • Laboratory grade
  • Features
  • Digital salinity detector
  • PH monitoring
  • APP connectivity
  • Features
  • WiFi connectivity for app control
  • Real-time data transmission and alerts
  • Long-term data recording and analysis
  • Features
  • Wireless WIFI app connectivity
  • Measures temperature, pH, salinity
  • Digital display
  • Features
  • 3-in-1 functionality
  • Measures pH levels
  • Monitors salinity
  • Features
  • Bluetooth connectivity
  • Measures salinity, EC, TDS
  • Temperature measurement
  • Features
  • 6-in-1 functionality
  • Digital display
  • Waterproof IP67
  • Features
  • Smart sensor technology
  • Accurate pH measurement
  • Easy to use
  • Features
  • 0-14 PH range
  • Replaceable PH probe
  • For aquarium controllers
  • Features
  • Measures TDS, EC, and temperature
  • Suitable for aquariums and hydroponics
  • Accurate and easy to use
  • Features
  • Portable design
  • Digital LCD display
  • Accurate salinity measurement
  • Features
  • Color screen display
  • Wide measurement range
  • Portable design
  • Features
  • 4-in-1 functionality
  • High precision measurement
  • Automatic data saving
  • Features
  • High sensitivity
  • 90 cm cable
  • For aquariums and hydroponics
  • Features
  • 5-in-1 measurement
  • Portable pen design
  • Accurate readings
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