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 Discount Instrument is an online distributor for a range of professional instruments. We offer internet-leading prices made possible through the online nature of our ecommerce distribution method. We provide excellent customer services and competitive prices.
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Items are dispatched by Registered Air Mail from Hong Kong within 2 business days after we have received your cleared payment. Delivery is approximately 8-18 days, in most cases, it takes 7-10 days. We make sure that your ordered item(s) leaves our facility in a timely manner. Insurance is included in the Shipping & Handling costs you paid and charge the same shipping cost to customers worldwide (same shipping cost to United States, Europe and Australia).
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39 results found in PH Meters / Controllers
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2in1 Digital pH ORP Controller Aquarium Pond Meter Tester Tool 1 Socket Generic
 
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$123.90
Free shipping
Time left:1d 2h 20m
Portable pH, Chlorine Swimming Pool Tester Water Quality Hydro Tool Testing Kit
 
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$17.90
Free shipping
Time left:1d 4h 53m
Digital pH Temperature Meter High Accuracy ±0.05PH Water Quality Tester Aquarium
 
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$50.90
Free shipping
Time left:2d 4h 51m
Waterproof Multi-Parameter Measure pH, EC, TEMP Pen Type Water Quality Tester
 
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$30.90
Free shipping
Time left:5d 8h 11m
3-in-1 ORP mV, PH, Temperature Meter Tester  w/ Replaceable pH & ORP Electrodes
 
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$109.90
Free shipping
Time left:6d 4h 32m
0~14.00 Pen Type pH Meter 12cm Long tube Hydrophonics Quality Control Measurer
 
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$37.30
Free shipping
Time left:6d 7h 21m
6-in-1 Multi-Function Water Quality Tester Meter  EC CF TDS PH °C °F  Hydroponic
 
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$99.90
Free shipping
Time left:6d 10h 18m
6-in-1 Multi-Function Water Quality Tester Meter  EC CF TDS PH °C °F  Hydroponic
 
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$94.14
Free shipping
Time left:6d 10h 22m
Waterproof Pen-type EC Conductivity Temperature Tester Dual Display Thermometer
 
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$36.90
Free shipping
Time left:7d 4h 8m
Waterproof Pen-type EC Conductivity Temperature Tester Dual Display Thermometer
 
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$34.96
Free shipping
Time left:7d 4h 10m
Digital Water Quality Tester ORP TDS Temperature Salinity pH Combo Meter Generic
 
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$106.90
Free shipping
Time left:8d 2h 48m
Salinity Temperature Tester High Accuracy Meter 0~70ppt NaCL °C / °F ATC IP65
 
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$35.74
Free shipping
Time left:9d 9h 10m
Digital Monitor Ph Water Tester Quality Analysis Chlorine Swimming Pool Test Kit
 
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$31.90
Free shipping
Time left:11d 9h 49m
Digital Monitor Ph Water Tester Quality Analysis Chlorine Swimming Pool Test Kit
 
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$30.29
Free shipping
Time left:11d 9h 52m
pH Buffer Calibration Powder Solution TestMeter 4.01, 7.00 10.01pH set Generic
 
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$8.90
Free shipping
Time left:16d 1h 41m
Digital ph Orp Controller BNC Electrodes Redox mV CO2 O3 220V or 110V Generic
 
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$133.90
Free shipping
Time left:17d 2h 51m
Soil Moisture Meter & pH Level Tester for Plants Crops flowers Vegetable Garden
 
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$45.90
Free shipping
Time left:17d 4h 12m
pH Pocket Meter Economical Tester Size Removable Probe Electrode with Clip
 
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$23.90
Free shipping
Time left:18d 4h 20m
pH Pocket Meter Economical Tester Size Removable Probe Electrode with Clip
 
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$22.50
Free shipping
Time left:18d 4h 22m
0.00~14.00PH Digital pH CO2 Controller Meter  Aquarium Fish Tank 110V or 220V
 
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$103.90
Free shipping
Time left:18d 10h 58m
Pocket Size Pen-type PH Meter, 0~14pH Water Quality Tester for Aquarium Pool
 
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$17.90
Free shipping
Time left:20d 5h 32m
Pocket Size Pen-type PH Meter, 0~14pH Water Quality Tester for Aquarium Pool
 
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$16.27
Free shipping
Time left:20d 6h 51m
Waterproof Multi-Parameter Measure pH, EC, TEMP Pen Type Water Quality Tester
 
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$32.62
Free shipping
Time left:21d 8h 55m
LCD Digital pH / Temp °C °F Meter IP65 Water Quality Tester w/ Auto Calibration
 
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$33.90
Free shipping
Time left:27d 6h 33m
0 ~14.00 pH Meter Digital Water Quality Monitor Tester Hydroponic Aquarium Spa
 
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$26.90
Free shipping
Time left:27d 7h 21m
pH Electrode Long Cable With BNC 2 x Buffer Calibration Solution 0.00~14.00pH
 
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$22.90
Free shipping
Time left:27d 7h 22m
Digital pH Monitor Tester 14.00 pH Range Aquariums w/ Rechargeable Meter Adaptor
 
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$54.90
Free shipping
Time left:27d 7h 22m
Digital pH Meter Tester Monitor Meter ATC w/ Replaceable BNC Electrode Generic
 
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$27.90
Free shipping
Time left:27d 7h 22m
7-in-1 Digital Water Quality Monitor Pool pH °C °F ORP EC CF TDS Meter Tester
 
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$111.90
Free shipping
Time left:27d 7h 22m
Digital pH Controller Meter Tester + Replaceable BNC Electrode 220V/110V Generic
 
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$105.90
Free shipping
Time left:27d 7h 23m
0~14.00 Pen Type pH Meter 12cm Long tube Hydrophonics Quality Control Measurer
 
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$39.90
Free shipping
Time left:27d 7h 23m
Pen Type Digital pH Level Meter Tester Thermomete​r (°C) Hydrophonic Spa Generic
 
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$32.90
Free shipping
Time left:27d 7h 26m
Portable Digital pH Meter 0.00~14.00pH Tester for Wine Hydrophonics Aquaculture
 
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$17.90
Free shipping
Time left:27d 7h 27m
Durable pH Electrode BNC 3m Cable Buffer Solutions Water Meter Tester Aquarium
 
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$26.90
Free shipping
Time left:27d 7h 29m
Portable Waterproof Digital pH Meter Thermometer Tester Hydroponics Laboratory
 
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$31.90
Free shipping
Time left:27d 7h 29m
2-in-1 Digital pH & Temperature Meter Tester Thermometer °C °F Test Water w/ ATC
 
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$47.90
Free shipping
Time left:27d 7h 30m
Digital pH Pen Meter Tester 2 Buffer Hydroponic Aquarium 14.00 pH Range Generic
 
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$19.90
Free shipping
Time left:27d 7h 30m
LCD Digital pH / Temp °C °F Meter IP65 Water Quality Tester w/ Auto Calibration
 
Buy It Now or Best Offer
$31.85
Free shipping
Time left:28d 10h 19m
2-in-1 Digital pH & Temperature Meter Tester Thermometer °C °F Test Water w/ ATC
 
Buy It Now or Best Offer
$45.86
Free shipping
Time left:28d 10h 19m
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