Atago PAL-Coral Reef Fish Digital Seawater Refractometer (Titanium Electrode)

The Atago PAL-Coral Reef Fish is a digital refractometer specifically designed to precisely measure water density (specific gravity) in coral reef and marine fish aquariums. For aquarium specialists and serious hobbyists, it eliminates the breakage risk of traditional glass hydrometers and temperature-related measurement errors.

A distinctive feature of this instrument is its rare titanium electrode construction within this market segment; this design maintains electrode failure rates as low as 0.08% according to manufacturer data. The 1.000–1.034 S.G. measurement range covers the requirements of both marine fish aquariums (approximately 1.018–1.023 S.G.) and coral systems (approximately 1.023–1.025 S.G.). Automatic temperature compensation (10–40°C) ensures consistent results independent of sample temperature; the applicable sample temperature range extends to 5–100°C.

The instrument delivers results in approximately 3 seconds using only 2–3 drops of sample, and its IP65 protection rating provides durability against water splash in aquarium environments. Powered by 2 AAA alkaline batteries and featuring compact dimensions (5.5 × 3.1 × 10.9 cm), it is well-suited for field use. An accuracy of ±0.002 S.G. provides sufficient resolution for the fine-tuned water management that coral care demands.

Technical Specifications

Applications

• Monitoring specific gravity in coral aquariums
• Salinity/S.G. verification in marine fish systems
• Quality control of newly prepared marine salt water mixtures
• Parameter validation before and after water changes