Acumen Hydra Alert PC Heart Rate Monitor / Hydration Watch The Acumen(r) Hydra-Alert(tm) PC compatible dehydration watch and heart rate monitor combines fitness monitoring features to keep you informed during your workout. The Fluid Check(tm) feature helps to monitor dehydration during physical activity by [... more]
$209.96 (Save 40%) Buy.com
Acumen Hydra Alert Jr Dehydration Watch The Acumen(r) Hydra-Alert(tm) Jr. dehydration watch with Fluid Check(tm) helps to monitor dehydration during physical activity by calculating and displaying fluid loss in oz/ml, and as a percentage of total body weight lost in oz/ml. It also offers you [... more]
$149.99 Buy.com
Hydrometer with Temperature Indicator Features: Hydrometer is 3.5" wide x 0.5" thick x 5" high. Binding: Misc. EAN: 0730773120109 MPN: AO12010 Package Quantity: 1 Size: Hydrometer is 3.5" wide x 0.5" thick x 5" high. UPC: 730773120109 [... more] Amazon.com
Instant Ocean Hydrometer Features: 6"H Used for ocean testing: We are involved in Marine Assessments in the Fiji Islands and we use this little device for on-site testing. Sometimes on the beach, sometimes on boat sometimes in a mangrove. It gives good enough results in [... more]
$14.99 Amazon.com
Deep Six Hydrometer Features: Before using, fill the hydrometer with salty water ad allow it to sit for 24 hours to season the needle. Useless, at any price.: This product wore out in a month. Readings became inaccurate and hard to read, especially when the blue [... more]
$8.67 Amazon.com
