- Out-of-Stock
Language:
-
-
- Angelfish
- Anthias
- Assorted marine fish
- Basslets (Gramma)
- Batfish (Platax)
- Beginner-friendly species
- Blennies
- Butterflyfish
- Captive-bred marine fish
- Clownfish
- Comets (Calloplesiops)
- Damselfish
- Dottybacks (Pseudochromis)
- Filefish
- Gobies
- Groupers
- Hawkfish
- Macroalgae for refugium
- Mandarin dragonets
- Nano reef
- Pufferfish and boxfish
- Rainbow wrasses
- Surgeonfish
- Traps and transport bags
- Triggerfish
- Useful species
- Wrasses
-
- Abyzz
- Aqua Illumination
- Aqua Medic
- Aquaforest
- Aquaprint UK
- Aquarium Systems
- Aquaroche
- Aquavie
- AquaVitro
- Arka
- Artreef Rocks
- ATI
- Auto Aqua
- BEA Aquaculture
- Blue Life USA
- Blue Marine
- Bubble Magus
- CaribSea
- Chemi-Pure
- Colombo
- D-D
- Deltec
- Dennerle
- Druide Coral ADS
- DSR
- Dutchreefrock
- DVH
- Easy Life
- Easy Reefs
- EcoTech Marine
- Eden
- Eheim
- Elos
- eSHa
- Fauna Marin
- Flipper
- Glamorca
- GNC
- GroTech
- Hanna Instruments
- Hikari
- Hobby / Dupla
- Illumagic
- INVE Selco
- JBL
- Jebao / Jecod
- Joe's Juice
- Jurassic Rock
- Juwel
- Kessil
- KZ Korallen-Zucht
- Mag-Float
- Marco Rocks
- Marine Direct
- MarinePure
- Maxspect
- Microbe-Lift
- Milwaukee
- Modern reef
- Nature's Ocean
- Neptune Systems
- Nyos
- Oase
- Oceamo
- Ocean Nutrition
- Pacific Sun
- Philips
- Polyp Lab
- Pontec
- PoseidonArtRocks
- Preis
- Prodibio
- RAH aquacultured phytoplankton and zooplankton
- RecifAtHome clothing and merchandise
- Red Sea
- Reef artists
- Reef Breeders
- Reef Coaching
- Reef Culture
- Reef Factory
- Reef Octopus
- Royal Exclusiv
- Royal Nature
- Salifert
- Seachem
- Sicce
- Skimz
- Superfish
- Triton
- Tropic Creations
- Tropic Marin
- Tunze
- Turtle System
- Two Little Fishies
- Vitalis
- Vivid Creative Aquatics
- WaterBox
- Waterlink
-
- Aquarium chillers
- Aquarium heaters
- Aquarium pumps
- Aquarium substrates and salts
- Auto top-off and reservoirs
- Books
- CO2 equipment
- Controllers
- Coral accessories
- Fish and coral care
- Maintenance and cleaning
- Pipes, valves, PVC and silicone
- Protein skimmers
- Reactors
- Reef aquarium lighting
- Reef aquariums
- Reef filtration
- Reef supplements
- Reverse osmosis units
- Saltwater fish food
- UV sterilizers and ozone
- Water testing and analysis
- Water treatments
-
- Aquascaping
- Freshwater aquarium lighting
- Freshwater aquarium pumps
- Freshwater aquariums
- Freshwater bacteria
- Freshwater decoration
- Freshwater filtration
- Freshwater food
- Freshwater livestock
- Freshwater sand
- Freshwater treatments
- Garden ponds
- Miscellaneous freshwater products
- Order by email
- Shrimp breeding
- Contact
Refractometer, optical GROTECH
Optical refractometer Grotech with automatic temperature compensation, for precise measurement of salinity in marine aquariums.
Living
Equipment
| Date Maximum delivery |
|
|---|---|
| Express | Friday 13 November |
| Pick-up point |
Friday 13 November
Tuesday 17 November |
| Home |
Monday 16 November
Tuesday 17 November |
For your zone France, delivery fees are 9,90 € with carrier Colis sur pré-commande
Delivery fees for your zone
France
| See all delivery fees | Cart amount | Delivery fees |
|---|---|---|
| Colis sur pré-commande | 0 à 158,98 € | 9,90 € |
| 158,99 à 248,98 € | Free | |
| 248,99 à 10 000 € | Free | |
| DPD Livraison en relais Pickup | 0 à 68,98 € | 6,90 € |
| 68,99 à 10 000 € | Free | |
| DPD Livraison sur lieu de travail | 0 à 158,99 € | 9,90 € |
| 158,99 à 10 000 € | Free | |
| DPD Livraison à domicile Predict sur créneau horaire | 0 à 68,98 € | 9,90 € |
| 68,99 à 158,98 € | 9,90 € | |
| 158,99 à 10 000 € | Free | |
| En Relais GLS | 0 à 68,98 € | 6,90 € |
| 68,99 à 10 000 € | Free | |
| EXPRESS 24H Vivant - Live - Lebenden - Vivo - Levend | 0 à 248,99 € | 24,90 € |
| 248,99 à 298,99 € | 24,90 € | |
| 298,99 à 100 000 € | Free | |
| GLS À domicile | 0 à 68,98 € | 9,90 € |
| 68,99 à 158,98 € | 9,90 € | |
| 158,99 à 10 000 € | Free | |
| Livraison palette – Pallet Delivery | 0 à 50 kg | 50 € |
| UPS Matériel Domicile EXPRESS 24H | 0 à 15 000 € | 19,90 € |
Delivery fees for other zones:
| Country | Carrier | Cart amount | Delivery fees |
|---|---|---|---|
| Europe zone 1 | Colis sur pré-commande | 0 à 158,98 € | 15,90 € |
| 158,99 à 248,98 € | 15,90 € | ||
| 248,99 à 10 000 € | Free | ||
| DPD Livraison en relais Pickup | 0 à 68,98 € | 6,90 € | |
| 68,99 à 10 000 € | Free | ||
| DPD Livraison internationale | 0 à 248,98 € | 15,90 € | |
| 248,99 à 10 000 € | Free | ||
| DPD Livraison sur lieu de travail | 0 à 158,99 € | 7,80 € | |
| 158,99 à 10 000 € | 7,80 € | ||
| EXPRESS 24H Vivant - Live - Lebenden - Vivo - Levend | 0 à 248,99 € | 42 € | |
| 248,99 à 298,99 € | 30 € | ||
| 298,99 à 100 000 € | 30 € | ||
| Livraison palette – Pallet Delivery | 0 à 50 kg | 259 € | |
| France | Colis sur pré-commande | 0 à 158,98 € | 9,90 € |
| 158,99 à 248,98 € | Free | ||
| 248,99 à 10 000 € | Free | ||
| DPD Livraison en relais Pickup | 0 à 68,98 € | 6,90 € | |
| 68,99 à 10 000 € | Free | ||
| DPD Livraison sur lieu de travail | 0 à 158,99 € | 9,90 € | |
| 158,99 à 10 000 € | Free | ||
| DPD Livraison à domicile Predict sur créneau horaire | 0 à 68,98 € | 9,90 € | |
| 68,99 à 158,98 € | 9,90 € | ||
| 158,99 à 10 000 € | Free | ||
| En Relais GLS | 0 à 68,98 € | 6,90 € | |
| 68,99 à 10 000 € | Free | ||
| EXPRESS 24H Vivant - Live - Lebenden - Vivo - Levend | 0 à 248,99 € | 24,90 € | |
| 248,99 à 298,99 € | 24,90 € | ||
| 298,99 à 100 000 € | Free | ||
| GLS À domicile | 0 à 68,98 € | 9,90 € | |
| 68,99 à 158,98 € | 9,90 € | ||
| 158,99 à 10 000 € | Free | ||
| Livraison palette – Pallet Delivery | 0 à 50 kg | 50 € | |
| UPS Matériel Domicile EXPRESS 24H | 0 à 15 000 € | 19,90 € | |
| Europe zone 2 | Colis sur pré-commande | 0 à 158,98 € | 39,90 € |
| 158,99 à 248,98 € | 39,90 € | ||
| 248,99 à 10 000 € | 39,90 € | ||
| DPD Livraison en relais Pickup | 0 à 68,98 € | 12,90 € | |
| 68,99 à 10 000 € | 12,90 € | ||
| DPD Livraison internationale | 0 à 248,98 € | 39,90 € | |
| 248,99 à 10 000 € | 39,90 € | ||
| EXPRESS 24H Vivant - Live - Lebenden - Vivo - Levend | 0 à 248,99 € | 39,90 € | |
| 248,99 à 298,99 € | 39,90 € | ||
| 298,99 à 100 000 € | 39,90 € | ||
| Livraison palette – Pallet Delivery | 0 à 50 kg | 359 € | |
| Suisse | Colis sur pré-commande | 0 à 158,98 € | 39,90 € |
| 158,99 à 248,98 € | 39,90 € | ||
| 248,99 à 10 000 € | 39,90 € | ||
| DPD Livraison en relais Pickup | 0 à 68,98 € | 26,90 € | |
| 68,99 à 10 000 € | 26,90 € | ||
| DPD Livraison internationale | 0 à 248,98 € | 39,90 € | |
| 248,99 à 10 000 € | 39,90 € | ||
| Livraison palette – Pallet Delivery | 0 à 50 kg | 389 € | |
| Suisse - EXPRESS 24H Vivant - Live - Lebenden - Vivo – Levend | 0 à 100 000 € | 44,90 € |
Customers who bought this product also bought:
other products in the same category:
Specific References
- EAN13
- 4032517970008
- Weight
- 0.1 kg
En savoir plus
Optical Refractometer for Measuring Salinity in Marine Aquariums
The Grotech optical refractometer is a measuring instrument designed for the precise control of salt concentration in seawater. It allows for a direct reading of salinity, an essential parameter for maintaining stable conditions in marine aquariums.
Function and Measurement Principle
The refractometer operates by analyzing the refraction of light through a water sample. The integrated measurement scale allows for a direct reading of salt concentration, expressed in parts per thousand, without intermediate calculations.
The device is equipped with an automatic temperature compensation system, ensuring reliable measurements even in cases of moderate thermal variations.
Main Features
Type of measurement: salt concentration and salinity.
Reading: direct on optical scale.
Temperature compensation: automatic.
Use: marine aquarium.
Benefits for the Aquarium
Precise control of salinity is essential for the health of fish, corals, and marine invertebrates. The Grotech optical refractometer offers reliable and reproducible measurements, suitable for both reef aquariums and fish-only marine tanks.
Package Contents
An optical refractometer and a protective case are included.
Optical refractometer Grotech with automatic temperature compensation, for precise measurement of salinity in marine aquariums.