TMC Refractometer Ensure precise salinity readings in your marine or reef aquarium with the TMC Refractometer. Designed for accuracy and ease of use, this essential tool allows you to quickly measure salt levels, helping maintain a stable and healthy environment for fish, corals, and invertebrates. Features & Benefits: High accuracy – provides reliable salinity and specific gravity readings Easy to use – simple drop-and-read design with clear scale Essential for marine setups – helps maintain stable water parameters Durable construction – built for long-term, repeated use Compact & portable – ideal for home aquariums or professional use Care & Usage Tips: Calibrate regularly using RO water or calibration solution for best accuracy Clean prism with fresh water after each use Avoid touching the glass surface to maintain clear readings Store safely in its protective case Specifications: Suitable for: Marine and reef aquariums Measurement: Salinity / Specific Gravity Operation: Manual optical refractometer Ideal for: Routine monitoring and water changes Maintain perfect salinity levels with confidence using the TMC Refractometer – a must-have tool for any serious marine aquarist.