Best Water Activity Meter

Invicta Men's 20434 Pro Diver Analog Display Automatic Self Wind Silver Watch

Stainless steel case 40mm diameter x 13.8mm thick.
NH38A Japanese Automatic movement, 24 jewel.
Band is adjustable by adding/removing links.
Uni-directional stainless steel bezel with blue top bezel ring.
200 meter water resistant: Suitable for professional marine activity and surface water sports. Suitable for diving..

Stainless steel case 37.5mm diameter x 11mm thick.
Band is adjustable by adding/removing links.
Unidirectional stainless steel bezel with black top bezel ring.
200 meter water resistant: Suitable for professional marine activity and surface water sports. Suitable for diving..

Powered by the Orient F6727 In-House Japanese Automatic / Hand Winding Movement.
200 Meter Water Resistance (660 feet): In general, suitable for professional marine activity and serious surface water sports, but not diving.
Scratch Resistant Sapphire Crystal with Anti-Reflective Coating.

✔[ RELIABLE TDS METER WITH ACCURATE & QUICK MEASUREMENT ] Hofun ppm water tester is equipped with premium quality titanium alloy probe, which enables quick and convenient water total dissolved solids(tds) test. 0-9999ppm wide test range makes it fits multiple uses, like drinking water test, swimming pool, hot tub, laboratory, hydroponics, aquariums, well water, tap water, etc..
✔[ BONUS 3 in 1 TDS , EC & TEMP METER ] Hofun 3 in 1 TDS Meter, Electric Conductivity Meter & Temperature Meter features the most updated technology. Three different measurement needs can be fulfilled by one water tester meter. Not only been convenient for you, but also saves your time and money, absolutely a helpful water test kit for your water safety at home..
✔[ EASY READING BIG BACKLIT LCD DISPLAY & QUALIFIED WATER TELLER ] Hofun water hardness test meter with Big Backlit LCD is far superior than most digital water quality tester display, which allows wider angles of data reading and night reading. Besides, Red backlight ( ppm figure over 40 ) means non-drinking water. Green backlight ( ppm figure below 40 ) indicates TDS figure qualified for direct drinking water (Notes: International standard adopted TDS figure 40 as a dividing line.).

Gold tone stainless steel case 47mm diameter x 15.5mm thick.
NH35A Japanese Automatic movement, 24 jewel.
Band is adjustable by adding/removing links.
Uni-directional stainless steel bezel with black top bezel ring.
200 meter water resistant: Suitable for professional marine activity and surface water sports. Suitable for diving..

Gold tone stainless steel case 50mm diameter x 19mm thick.
S-05A Chinese Automatic movement, 40 jewel.
Gold tone stainless steel band, 210mm L x 34mm W.
Band is adjustable by adding/removing links.
Stationary stainless steel bezel with blue top bezel ring.
200 meter water resistant: Suitable for professional marine activity and surface water sports. Suitable for diving..
Includes gift box, instruction manual and 3 year limited manufacturer warranty.
Invicta Customer Service can be reached at 1-800-327-7682 or at Invictawatch.com, "Contact", for questions (re: Additional links, band replacement, band adjustment, warranty questions, etc.).

Stainless steel case 40mm diameter x 13mm thick.
SW200 Swiss Automatic movement, 26 jewel.
Band is adjustable by adding/removing links.
Unidirectional stainless steel bezel with black top bezel ring.
200 meter water resistant: Suitable for professional marine activity and surface water sports. Suitable for diving..

Gold tone stainless steel case 48mm diameter x 12.5mm thick.
Gold tone stainless steel band, 215mm L x 26mm W.
Band is adjustable by adding/removing links.
Unidirectional stainless steel bezel with green bezel ring.
Functional Subdials: 60min, 60sec, 24 hour.
200 meter water resistant: Suitable for professional marine activity and surface water sports. Suitable for diving..

Stainless steel case 42mm diameter x 14.2mm thick.
NH35A Japanese Automatic movement, 24 jewel.
Band is adjustable by adding/removing links.
Uni-directional stainless steel bezel with black top bezel ring.
200 meter water resistant: Suitable for professional marine activity and surface water sports. Suitable for diving..

Gold tone stainless steel case 40mm diameter x 14mm thick.
NH35A Japanese Automatic movement, 24 jewel.
Gold tone stainless steel band, 205mm L x 20mm W.
Band is adjustable by adding/removing links.
Unidirectional stainless steel coin edge bezel with black top bezel ring.
200 meter water resistant: Suitable for professional marine activity and surface water sports. Suitable for diving..