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Measure oxygen concentrations in lakes, streams, rivers, estuaries, and coastal waters with the HOBO U26 Dissolved Oxygen Data Logger.

An easy-to-use identification guide to the 280 bird species most commonly seen in Peninsular Malaysia, Sabah and Sarawak.

Round sample jar with blue pre-assembled screw cap.

Bovids of the World is the first comprehensive field guide to cover all 279 bovid species, including antelopes, gazelles, cattle, buffaloes, sheep, and goats.

Birder's Journal is a notebook especially for bird watchers.

The HI775-26 are the replacement reagents for the HI775 Freshwater Alkalinity Checker HC.

Test tube plastic sterile 13 x 75 mm + cap (100 pieces)

Starlings swarming with millions through the evening air. How do they do that?

Handbook of the Mammals of the World, Vol. 6: Lagomorphs and Rodents I

Ty-Fit is a universal all-plastic cable tie.

Professional digital pocket scale in elegant silver design with four different weighing units.

The HI98121 is a reliable, waterproof tester that ensures quick and easy measurements of both pH and ORP.

This is the completely revised edition of the essential field guide to the birds of New Guinea.

The HI96822 is a portable digital refractometer to determine the salt content (salinity) in natural or artificial sea water and brackish water.

Tail ruler for measuring the tail of birds. Length: 150mm or 300mm

Covering 239 species, this book is the first definitive photographic guide to woodpeckers.

This is the only field guide to provide comprehensive coverage of the mammals of Central America and Southeast Mexico.

This compact field guide, based on Birds of Seychelles by Adrian Skerrett, Ian Bullock and Tony Disley, is the only field guide to cover every species recorded in Seychelles.

This field guide covers all species occurring in the West Indies.

Deze veldgids beschrijft 500 algemene soorten plaatjeszwammen en boleten van Nederland. De gids bevat gedetailleerde sleutels en honderden kleurenfoto’s gericht op herkenning thuis en in het veld.

In de serie Entomologische Tabellen beschrijft John T. Smit de Nederlandse Boorvliegen. Entomologische tabellen 5

The BlueScope microscope series is specifically designed for educational and professional applications, with a strong focus on durability, safety, and ease of use, while maintaining the highest quality standards.

