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Gain Express Holdings Ltd Maintained by: gainexpress ( 27604) We are a professional supplier of all kinds of testing instruments based in Hong Kong. We supply a wide range of products w/ CE approval. Our factory is certified by EN ISO9001-2000 to insure that all our products and services are in accordance with international standards. www.gainexpress.com Check out www.gainexpress.com for more items, volume discounts and international shippings Store search in titles & description Store categories Store home NEW ENVIRONMENT INSTRUMENTS (45) Wholesale Lot (4) Microscope /Camera illuminator (28) GEM Identification Toolkit SET (21) Gem Tools / Testing Kits (110) UV Light (2) Refractometer (Traditional) (63) Refractometer (New Design) (39) Refractometer (Built-in Light) (27) PH Meter / Tester / Electrode (145) 7-in-1 Multi-funcional Meter (3) 6-in-1 Multi-functional Meter (8) 3-in-1 ORP(MV) + PH + Temp (5) PenType pH Meter (Traditional) (11) Pen Type pH Meter + solutions (20) pH meter + Electrode +Solution (7) pH + FixedElectrode + solution (22) pH + Adaptor + Electrode (NEW) (5) PenType pH with Temperature (20) Pen Type pH + BNC Electrode (2) Waterproof Pen Type pH Meter (12) pH Electrode + 1 meter Cable (9) pH Electrode + 3 meter Cable (2) pH Controller (6) Soil pH Meter(Short Electrode) (3) Soil pH Meter (long Electrode) (8) Waterproof pH Stick Meter (2) EC / TDS / PPM Conductometers (64) ORP Meter / Tester (22) Salinity Meter (3) PH & PH/ORP(2 in 1) Controller (22) Fish finder & feeder (13) Ozone Generator (14) Thermometer (90) Digital Thickness Gauge/Meter (17) Digital Hardness Durometer (6) Anemometer / Lux / Light Meter (43) Sound & Temp / Moisture Meter (44) Fiber Optical Microscope (5) Tachometer & Stroboscope (27) Ultrasonic Cleaner (9) Angle Finder/Protractor (22) Phase Sequence Tester (8) Cable Testers (6) Multimeter/MultiFunction Meter (20) Vibration Meter (2) Frequency Counter (5) Beschreibung auf Deutsch (86) Descrizione in Italiano (49) Description en Français (82) Descripción en español (71) Other (130) Show all subcategories Display Hide gallery view View time left Store pages About the seller Hot Items Featured items * New Products !!! * View: All Items | Buy It Now 20 results found View as:Gallery Sort by:Time: newly listed Shipping to USA Waterproof pH meter w/ Temperature Auto Cal. + PH4,7,10 $27.87 Listed:Nov-25 20:21 High Accuracy pH Meter + 2 Solution, Aquarium, Tester $18.90 Listed:Nov-25 20:16 Professional PH meter Temperature High Accuracy ±0.02PH $43.53 Listed:Nov-25 03:04 Waterproof pH meter w/ Temperature Auto Cal. + PH4,7,10 $36.26 Listed:Nov-24 18:41 Professional PH meter Temperature High Accuracy ±0.02PH $39.90 Listed:Nov-23 18:33 High Accuracy pH Meter + 2 Solution, Aquarium, Tester $18.90 Listed:Nov-20 03:54 High Accuracy pH Meter + 2 Solution, Aquarium, Tester $18.90 Listed:Nov-18 18:29 High Accuracy pH Meter + 2 Solution, Aquarium, Tester $19.62 Listed:Nov-18 18:27 Professional PH meter Temperature High Accuracy ±0.02PH $39.90 Listed:Nov-18 04:18 Waterproof pH/Temperature Meter Auto Calibration °C/ °F $33.54 Listed:Nov-16 20:08 High Accuracy pH Meter + 2 Solution, Aquarium, Tester $19.62 Listed:Nov-16 20:04 pH/Temperature Meter Tester Auto Calibration BIG LCD $36.26 Listed:Nov-15 16:54 Waterproof pH meter Tester Temperature Auto Calibration $33.54 Listed:Nov-15 16:48 High Accuracy pH Meter + Solution Aquarium Tester New $22.63 Listed:Nov-15 16:47 High Accuracy pH Meter + 2 Solution, Aquarium, Tester $18.90 Listed:Nov-15 16:46 Waterproof pH meter Tester Temperature °C °F + Big LCD $31.17 Listed:Nov-13 00:19 High Accuracy pH Meter + 2 Solution, Aquarium, Tester $19.62 Listed:Nov-04 19:04 Professional PH meter Temperature High Accuracy ±0.02PH $44.36 Listed:Oct-21 17:38 Professional PH meter Temperature High Accuracy ±0.02PH $44.36 Listed:Oct-18 23:27 High Accuracy pH Meter + Solution Aquarium Tester New $24.45 Listed:Oct-13 22:01 Page 1 of 1 Previous 1|2|3|4|5|6|7 Next Go to page

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