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REBS-10ATC Tri-Scale Refractometer ATC Brix 0-10%/ Salinity 0-100PPT/ Specific Gravity 1.000-1.070, for Saltwater Brackish Marine Reef Tank Salt Sea Water Hydroponic Aquarium Control Monitoring

$REBS - 10ATC REBS - 10ATC Tri - Scale Refractometer ATC Brix 0 - 10%/ Salinity 0 - 100PPT/ Specific Gravity 1.000 - 1.070, for Saltwater Brackish Marine Reef Tank Salt Sea Water Hydroponic Aquarium Control Monitoring - Gain Express$

REBS-10ATC Tri-Scale Refractometer ATC Brix 0-10%/ Salinity 0-100PPT/ Specific Gravity 1.000-1.070, for Saltwater Brackish Marine Reef Tank Salt Sea Water Hydroponic Aquarium Control Monitoring

REBS-28ATC 2-in-1 Brix Salinity Refractometer Dual Scale 0-32% Brix & 0-28% Salinity with ATC Sodium Chloride in Food Salt Seawater Brine Beer fruits Cutting Liquid

$REBS - 28ATC 2 - in - 1 Brix Salinity Refractometer Dual Scale 0 - 32% Brix & 0 - 28% Salinity with ATC Sodium Chloride in Food Salt Seawater Brine Beer fruits Cutting Liquid - Gain Express$

REBS-28ATC 2-in-1 Brix Salinity Refractometer Dual Scale 0-32% Brix & 0-28% Salinity with ATC Sodium Chloride in Food Salt Seawater Brine Beer fruits Cutting Liquid

REC-200ATC Tri Scale Clinical Refractometer with ATC 0~12g/100ml Serum protein, 1~1.050, 1.333 ~ 1.360 RI for Human Urine, Serum or Plasma

$REC - 200ATC Tri Scale Clinical Refractometer with ATC 0~12g/100ml Serum protein, 1~1.050, 1.333 ~ 1.360 RI for Veterinary Dog Cat - Gain Express$

REC-200ATC Tri Scale Clinical Refractometer with ATC 0~12g/100ml Serum protein, 1~1.050, 1.333 ~ 1.360 RI for Human Urine, Serum or Plasma

REC-300ATC Pet Clinical Refractometer with ATC, Tri-Scale Serum & Plasma Protein Test 2-14g/dl Urine Specific Gravity 1.000-1.060SG, Veterinary Vet for Cat and Dog Animal Testing

$REC - 300ATC Pet Clinical Refractometer with ATC, Tri - Scale Serum & Plasma Protein Test 2 - 14g/dl Urine Specific Gravity 1.000 - 1.060SG, Veterinary Vet for Cat and Dog Animal Testing - Gain Express$

REC-300ATC Pet Clinical Refractometer with ATC, Tri-Scale Serum & Plasma Protein Test 2-14g/dl Urine Specific Gravity 1.000-1.060SG, Veterinary Vet for Cat and Dog Animal Testing

Replacement Remote Sensor for Wireless Weather Station Temperature Humidity Temperature Tester

RES-10ATC Dual Scale Salinity Refractometer ATC 0-100ppt (0-10%) & 1.000-1.070 Specific Gravity, Portable Meter Tester for Seawater Salt Sea Water Aquarium Brackish Reef Tank Marine

$RES - 10ATC RES - 10ATC Dual Scale Salinity Refractometer ATC 0 - 100ppt (0 - 10%) & 1.000 - 1.070 Specific Gravity, Portable Meter Tester for Seawater Salt Sea Water Aquarium Brackish Reef Tank Marine - Gain Express$

RES-10ATC Dual Scale Salinity Refractometer ATC 0-100ppt (0-10%) & 1.000-1.070 Specific Gravity, Portable Meter Tester for Seawater Salt Sea Water Aquarium Brackish Reef Tank Marine

RES-28ATC Salinity Refractometer 0-28% ATC, Sodium Chloride (NaCl) Salt Level Meter Tester, Test Kit for Sea Water Brine Seawater Food Industry Pickle Soy Sauce, ±0.2% Accuracy

$RES - 28ATC RES - 28ATC Salinity Refractometer 0 - 28% ATC, Sodium Chloride (NaCl) Salt Level Meter Tester, Test Kit for Sea Water Brine Seawater Food Industry Pickle Soy Sauce, ±0.2% Accuracy - Gain Express$

RES-28ATC Salinity Refractometer 0-28% ATC, Sodium Chloride (NaCl) Salt Level Meter Tester, Test Kit for Sea Water Brine Seawater Food Industry Pickle Soy Sauce, ±0.2% Accuracy

REW-25BATC Grape Fruit Wine Alcohol Refractometer with ATC, Dual Scale 0-25% VOL 0-40% Brix, Handheld Optical Meter Tester for Sugar Glucose Wine Making Winemakers Homebrew Test Tool

$REW - 25BATC Grape Fruit Wine Alcohol Refractometer with ATC, Dual Scale 0 - 25% VOL 0 - 40% Brix, Handheld Optical Meter Tester for Sugar Glucose Wine Making Winemakers Homebrew Test Tool - Gain Express$

REW-25BATC Grape Fruit Wine Alcohol Refractometer with ATC, Dual Scale 0-25% VOL 0-40% Brix, Handheld Optical Meter Tester for Sugar Glucose Wine Making Winemakers Homebrew Test Tool

REW-80ATC Alcohol Refractometer with ATC 0~80% VOL Volume, Optical Handheld Concentration Tester Meter for Distilled Beverages Homebrew

$REW - 80ATC REW - 80ATC Alcohol Refractometer with ATC 0~80% VOL Volume, Optical Handheld Concentration Tester Meter for Distilled Beverages Homebrew - Gain Express$

REW-80ATC Alcohol Refractometer with ATC 0~80% VOL Volume, Optical Handheld Concentration Tester Meter for Distilled Beverages Homebrew

RF-707 Wireless Floating Swimming Pool Thermometer 10~60 degree C (14 ~ 140 degree F) Range Digital

RHA-100ATC 3-in-1 Automotive Battery Antifreeze Refractometer Fahrenheit, -84~32°F Ethylene/ -60~32°F Propylene Glycol/ 1.100-1.400 Battery Fluids Specific Gravity, Battery Test Cooling Coolant Freezing Point

$RHA - 100ATC 3 - in - 1 Automotive Battery Antifreeze Refractometer Fahrenheit, - 84~32°F Ethylene/ - 60~32°F Propylene Glycol/ 1.100 - 1.400 Battery Fluids Specific Gravity, Battery Test Cooling Coolant Freezing Point - Gain Express$

RHA-100ATC 3-in-1 Automotive Battery Antifreeze Refractometer Fahrenheit, -84~32°F Ethylene/ -60~32°F Propylene Glycol/ 1.100-1.400 Battery Fluids Specific Gravity, Battery Test Cooling Coolant Freezing Point

RHB-32ATC Brix Refractometer with ATC, 0-32% Brix in 0.2% division, for brandy, beer, fruits, Cutting Liquid, CNC, Vegetables, Juices, Soft Drinks

$RHB - 32ATC Brix Refractometer with ATC, 0 - 32% Brix in 0.2% division, for brandy, beer, fruits, Cutting Liquid, CNC, Vegetables, Juices, Soft Drinks - Gain Express$