The Pyxis SP-910 Portable Analyzer has more than 60 of the most commonly tested water methods. The unit uses HACH reagents for the test procedures.  The SP-910 will read PTSA, the inert tracer in AquaTrol cooling tower products and Fluorescein B, the inert tracer in AquaTrol boiler products.

The hand-held DR 900 has 90 of the most commonly tested water methods. This is a HACH unit and uses HACH reagents for the test procedures. The DR 900 will not read fluorsecent tracer dyes.

The Opti-Check Handheld Fluorometer by Turner Designs is a small, lightweight, highly durable handheld fluorometer ideal for quick measurements in the field. Dual-channel capability enables measurement for both cooling tower and boiler system applications.

The Lovibond MD 640 is preprogrammed with over 120 of the most commonly tested water methods. This unit can be connected with a smart phone or tablet to easily view the testing data. The MD 640 can read PTSA and Fluorescein B which makes this an all-in-one hand-held unit. VARIO reagents can be used with the Hach DR 900. Hach reagents will not work with the MD 640.