GHL is going to Reefapalooza Chicago! Renaissance Schaumburg Convention Center, October 19 - 20, 2019. World premiere: See the new ION Director live in action! Fully automatic measuring of Ca, Mg, K, Na and NO3 without reagents. See you at Read More ...

GHL is going to Reefapalooza Orlando! Are you? #reefapaloozaorlando April 6 - 7, 2019. Find these and more on display at booth #818. See you there! GHL Doser 2.1Precision and Innovation. The Doser that can just do more. Thanks to Read More ...

GHL at Fabulous Las Vegas! 07. till 09. September 2018 you´ll find us at MACNA, booth 544.

Come to sunny Florida. From 07. till 08. April 2018 you´ll find us at  Reef A Palooza in Orlando, at booth 101.

GHL at New York! From 23. till 24. June 2018 you´ll find us at Reef A Palooza in New York, booth 229.

25. till 27. August 2017 you´ll find us at MACNA, New Orleans.

24. till 25. June 2017 you´ll find us at Reef A Palooza in New York.

06. till 07. May 2017 you´ll find us at  Reef A Palooza in Orlando, Florida.