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Gain Express Holdings Ltd Maintained by: Member id gainexpress ( Feedback Score Of 54583) Gain Express Holdings Ltd - 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 and our factory is certified by EN ISO9001-2000. You can easily find our company's background via search engines. ie. Google or Yahoo Store search Enter your search keyword in titles & description Store categories Store home Wholesale Lot (5) Gem Identificatio​n Tools (1) pH Meter (4) NEW ENVIRONMENT INSTRUMENTS (27) Anemometer / Lux / Light Meter (64) 100,000 + 3 Range (11) 200, 000 + 4 Range (12) 50,000 + 3 Range (5) 90,000 Lux + auto range w/ ftc (4) Anemometer (32) Angle Finder/Protrac​tor (48) Battery Tester / Checker (4) Blood Pressure Monitors (13) Wrist Type (5) Upper Arm Type (8) Body Fat Caliper (5) Brake Fluid Tester (5) Cable Testers (48) CO2 Monitor (21) Chlorine Tester/Meter/A​nalyzer (5) Datalogger (31) Dental Loupes (26) 2.5x (8) Titanium (4) Nickel Alloy (4) 3.5x (7) Titanium (3) Nickel Alloy (4) 4.0x (4) Nickel Alloy (4) 6.0x (7) Titanium (3) Nickel Alloy (4) Digital Weighing Scale (9) Dissolved Oxygen Meter (5) Distance Meter / Range Finders (29) EC / TDS / PPM Conductometers (34) 3-in-1 EC/ CF /TDS Waterproof (4) 6-in-1 Multi-functio​nal Meter (5) EC - PenType Meter 0~1999us/cm (4) EC - PenType Waterproof ms/cm (1) EC - PenType Waterproof us/cm (4) EC -PenType Meter 0~19.99ms/cm (2) EC/ PPM /CF - Nutra-Wand Stick (2) TDS - Monitor + Power Adaptor (4) TDS - PenType Meter 0-1999ppm (5) TDS - PenType Waterproof (3) Endoscope / Video Inspection (176) Electronic Stethoscope (4) Face & Skin Moisture Analyzer (4) Fiber Optical Microscopes (8) Fish Finders / Locators (41) Digital Scale/Camera (8) Wired (14) Wireless (19) Frequency Counters (5) Gas Leak Detector/ Gloss Meter (10) Heart Rate Monitor (7) RF/EMF/Solar Meter / Manometer (46) GEM Identification Toolkit SET (13) Set A (3 items /set) (2) Set C (3 items /set) (1) Set D (4 items /set) (1) Set E (9 items /set) (1) Set F (7 items /set) (1) Set H (8 items /set) (1) Set JEM-II + JEM-III (4) Set N (9 items /set) (1) Set P (8 items /set) (1) Gem Tools / Testing Kits (115) Chelsea Filter (1) Darkfield Loupe + Torch (2) Desktop LED Light (1) Desktop Polariscope 110V-230V (5) Diamond Tester (7) Dichroscope (4) Diffraction Spectroscope (2) Gem Refractometer​s (15) Refractomete​r (Traditional​) (15) Handheld Polariscope + Torch (3) Identificatio​n Kit Set (8) Loupe (48) 10x 21mm (10) 10x 25mm (3) 10x - 20x Dual Lens (2) 20x 21mm (16) 30x 21mm (7) All LED loupes (10) MOISSANITE / DIAMOND TESTER (12) Portable Mini Microscope (2) Prism Spectroscope (2) RI Index Fluid (1) Ruby Filter (2) Hardness Durometers (19) Leeb (3) Shore A (8) Shore C (1) Shore D (7) Level Laser Marker (5) Mosquito / Pest Repeller (21) Multimeter/Mul​tiFunction Meter (50) ORP Meters / Testers (23) 3-in-1 (ORP/ PH / Temperature) (5) 7-in-1 Multi-funcion​al Meter (2) ORP Electrode (7) ORP Meter + Power Adaptor (5) Pen Type ORP Meter (4) Ozone Generators (11) Industrial (4) Newl Desgin 500mg/hr (3) Traditional Desgin 200mg/hr (4) PH & PH/ORP(2 in 1) Controller (19) PH Meter / Tester / Electrode (117) 3-in-1 ORP(MV) + PH + Temp (5) 6-in-1 Multi-functio​nal Meter (9) 7-in-1 Multi-funcion​al Meter (3) Pen Type pH Meter + solutions (7) PenType pH Meter (Traditional) (7) PenType pH with Temperature (10) pH + Adaptor + Electrode (NEW) (4) pH Controller (6) pH + FixedElectrod​e + solution (13) pH meter + Electrode +Solution (5) pH Electrode + 1 meter Cable (12) pH Electrode + 3 meter Cable (2) Soil pH Meter (long Electrode) (8) Soil pH Meter(Short Electrode) (5) Waterproof Pen Type pH Meter (18) Waterproof pH Stick Meter (3) Phase Sequence Tester (3) Radiation Detection (10) Refractometers (Traditional) (79) AL 0-25/Brix 0-40 Grape Wine (4) Alcohol 0-80% (Wine) (5) Antifreeze / Battery / Fluid (12) Beer / Wort / 0-32% Brix (4) Brix 0-10% ATC (Low Sugar,CNC) (4) AU$ (1) GBP (£) (1) US$ (2) Brix 0-18% ATC (Low Sugar,CNC) (4) AU$ (1) GBP (£) (1) US$ (2) Brix 0-32% ATC (Sugar etc) (4) AU$ (1) GBP (£) (1) US$ (2) Brix 0-80% (Sugar etc) (4) Brix 58-90% ATC (Honey) (4) AU$ (1) GBP (£) (1) US$ (2) Clinical / Serum / Protein (4) Gem Refractometer Built-in LED (2) Gems Refractometer Traditional (2) Oe Oechsle(Oe°) Brix 0-32% (4) Oe Oechsle(Oe°) Brix 0-44% (5) Salinity (Salt / Aquarium) (17) Refractometers (New Design) (34) AL 0-25 / Brix 0-40 Grape Wine (4) GBP (£) (1) US$ (3) Antifreeze / Battery °C (7) AU$ (1) GBP (£) (3) US$ (3) Antifreeze / Battery °F (3) AU$ (1) US$ (2) Brix 0-32% ATC (Sugar etc) (3) GBP (£) (1) US$ (2) Brix 58-90% ATC (Honey) (3) AU$ (1) US$ (2) Clinical / Serum / Protein (4) Salinity (Salt / Aquarium) (10) AU$ (2) GBP (£) (2) US$ (6) Refractometer (Built-in Light) (4) Brix 0-32% ATC (Sugar etc) (3) AU$ (1) GBP (£) (1) US$ (1) Salinity (Salt / Aquarium) (1) GBP (£) (1) Ring light / illuminator (30) 48 LED (4) 48 LED (White/Red/Bl​ue/Green) (1) 48 LED - 74mm (3) 54 LED (4) 72 LED (4) 80 LED - 70 mm (4) 144 LED - 61mm 4 Zone Control (3) Fiber optic illuminator (7) Salinity Meters (4) Stud / Joist Scanner (10) Sound & Temp / Moisture Meter (87) 4 PIN Wood Moisture Meter (8) Any Grain Moisture Meter (12) Scanner/PinTy​pe Moisture Meter (20) Sound Level Calibrator (3) Sound Level Meter (25) Temperature & Humidity Meter (19) Surface Roughness Tester (4) Tachometers & Stroboscope (16) Stroboscope (6) Tachometer (10) Thermometers (149) Digital Aquarium Thermometer (12) Hygro-Thermom​eter (21) Indoor / Outdoor Thermometer (24) Infrared ( IR ) Non-Contact (83) Two K-Type w/ 2 Thermocouples (9) Thickness Gauges / Meters (52) Coating Thickness Gauge/Meter (28) Ultrasonic Thickness Gauge (24) Tire Gauge (7) Ultrasonic Cleaners (8) Vibration Meter (10) Voltage Insulation Tester (15) Window Tint Meter (7) Items in Australian Dollar (303) Items in GBP "Sterling" (402) Beschreibung auf Deutsch (214) Descripción en español (205) Description en Français (217) Descrizione in Italiano (193) Other (103) Hide all subcategories Display Hide gallery view View time left Store pages About the seller Hot Items Featured items * NEW ITEMS !!! * View: All Items | Auction | Buy It Now 114 results found in PH Meter / Tester / Electrode View as:Gallery Sort by:Best Match Posting to AUS Soil pH Level & Moisture Meter Tester, Plant Tree Veget... 0 Bids: AU $26.27 Postage:+AU $7.46 Time left:14h 25m Accurate Soil ph moisture meter tester long electrode AU $30.53 Postage:+AU $7.05 Time left:9d 20h 8m 6 en 1 Metro, Probador PH EC CF TDS °C °F, 6 funciones AU $74.70 Postage:+AU $13.00 Time left:3d 0h 55m WATERPROOF DIGITAL PH METER TESTER for AQUARIUM WATER c AU $29.90 Postage:+AU $10.50 Time left:28d 11h 35m Waterproof pH meter 0~14pH w/ °C °F Automatic Calibrati.​.. AU $25.43 Postage:+AU $6.64 Time left:9d 16h 30m New Design pH ELECTRODE BNC Connector 300cm CABLE + Cal... 0 Bids: AU $19.30 Postage:+AU $7.05 Time left:16h 50m 6-in-1 Digital LCD Multi-Func​tion Meter Water Quality T... AU $90.88 Postage:Free Time left:26d 5h 25m WATERPROOF DIGITAL PH METER TESTER, Temperatur​e °C °F c AU $26.27 Postage:+AU $6.99 Time left:10d 3h 25m Waterproof pH meter 0~14pH w/ °C °F Automatic Calibrati.​.. AU $24.90 Postage:+AU $6.50 Time left:14d 23h 46m High Accuracy pH Meter + 2 Solution, Aquarium, Tester AU $16.90 Postage:+AU $9.90 Time left:23d 13h 56m 6-in1 Combo Meter Water Tester pH ORP EC TDS Salinity T... 0 Bids: AU $98.54 Postage:+AU $12.25 Time left:18h 29m 2 in 1 Digital PH ORP Controller BNC Electrodes mV Redo... AU $106.90 Postage:+AU $24.00 Time left:22d 10h 33m 3-in-1 Digital ORP mV PH Temperatur​e Meter Tester Repla... AU $89.00 Postage:+AU $19.00 Time left:10d 13h 52m 6-in1 Combo Pen Meter Water Tester pH EC TDS Salinity T... AU $100.58 Postage:+AU $12.25 Time left:4d 21h 3m Enlarge 4 in 1 pH Temperatur​e Moisture Light Meter Soil Plant AU $17.90 Postage:+AU $8.90 Time left:4d 9h 25m Waterproof pH/Tempera​ture Meter Auto Calibratio​n °C/ °F 0 Bids: AU $24.41 Postage:+AU $7.05 Time left:20h 22m pH Electrode BNC 300cm long Cable 2 x Buffer Calibratio​... AU $17.90 Postage:+AU $5.50 Time left:6d 11h 45m Accurate Soil pH and Moisture Level Meter Tester, 30cm ... AU $29.90 Postage:+AU $6.99 Time left:7d 13h 29m Enlarge New Design LONG PH ELECTRODE BNC 300cm CABLE + SOLUTION..​. AU $20.05 Postage:+AU $6.99 Time left:6d 18h 39m WATERPROOF DIGITAL PH METER TESTER, Thermomete​r °C °F AU $25.43 Postage:+AU $10.11 Time left:16d 0h 42m Digital pH Monitor Meter Tester 0.00~14.00​pH + 2 Buffer... 0 Bids: AU $22.36 Postage:+AU $8.68 Time left:20h 45m Waterproof LED pH Stick Meter Tester Pool Aquarium Hydr... AU $34.62 Postage:Free Time left:10d 0h 55m New Design LONG PH ELECTRODE BNC 300cm CABLE + SOLUTION..​. AU $20.32 Postage:+AU $7.05 Time left:1d 13h 25m Enlarge Waterproof Digital pH Meter Tester Thermomete​r °C °F AU $39.90 Postage:+AU $6.90 Time left:5d 8h 10m Waterproof pH/Tempera​ture Meter Auto Calibratio​n °C/ °F AU $23.90 Postage:+AU $6.50 Time left:13d 8h 59m Digital pH Monitor Meter Aquarium + Adaptor solutions 0... 0 Bids: AU $23.38 Postage:+AU $10.11 Time left:21h 3m 7-in-1 pH °C °F ORP EC CF TDS Meter Tester Thermomete​r AU $90.78 Postage:+AU $15.21 Time left:27d 21h 33m Enlarge Waterproof LED pH Stick Meter Tester Pool Aquarium Hydr... AU $34.90 Postage:Free Time left:13d 23h 13m 2in1 Soil pH Level Moisture Meter Tester Plants Crops F... AU $26.50 Postage:+AU $6.80 Time left:4d 19h 23m New Design LONG PH ELECTRODE BNC Connector 300cm CABLE ... AU $19.90 Postage:+AU $6.90 Time left:8d 13h 10m Page 1 of 4 Previous 1|2|3|4|5|6|7 Next Go to page