NYOS® REEFER Test Kits enable reliable and repeatable measurement of water parameters in your aquatic environment. The kit includes around 50 tests and is affordably priced. Each kit is German-made and includes a calibrated dropper reagents certified in accordance with EN ISO 9001 and AAS/NIST standards and pictogram instructions for easy use. With NYOS® REEFER test kits you can analyze your water conditions and promote success in your aquarium the way nature intended.