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Best Selling Products | Shop Now

Best Selling
Zd-06 Soil Ph & Moisture Tester Meter With 295Mm Long Electrode Probe Waterproof Kit Tools For
ZD-06 Soil pH & Moisture Tester Meter with 295mm Long Electrode Probe Waterproof Soil Tester Kit Tools, for Indoor & Outdoor Gardens Plants Flowers Farming
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DMT-3 High Accuracy Professional Diamond Moissanite Tester Gemstone 2pt Jewel Stone Combo Gem Jewelry Test Tool Selection Factory Calibrated Meter Identifier Device - Gain Express
DMT-3 High Accuracy Professional Diamond Moissanite Tester Gemstone 2pt Jewel Stone Combo Gem Jewelry Test Tool Selection Factory Calibrated Meter Identifier Device
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M0199720 6-In-1 Water Tester Combo Pen Ph Orp Ec Tds Salinity & Temperature Quality Meters
M0199720 6-in-1 Water Tester Combo Pen pH, ORP, EC, TDS, Salinity, & Temperature
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Ffw-718 Lucky Portable Wireless Fish Finder Locator With 45M (135Ft) Depth & 120M (400Ft) Range
FFW-718 Lucky Portable Wireless Fish Finder Locator with 45m (135ft) Depth & 120m (400ft) Wireless Range, Display Water Temperature/ Fish Size & Location, Fishing Gear Tools for Fresh & Salt water, Ocean, Sea, Lake, River, Ice Icy Water, 90° beam angle
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CLMG-7173_LED Magnifier Scale Loupe 10x Magnification 8 LED Light 20mm Scale Chart & 25mm Field of View - Gain Express
CLMG-7173_LED Magnifier Scale Loupe 10x Magnification 8 LED Light 20mm Scale Chart & 25mm Field of View
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836-1 Digital Conductivity TDS Meter, ppm ppt uS mS °C/°F Pentype Water Quality Tester with ATC - Gain Express
836-1 Digital Conductivity TDS Meter, ppm ppt uS mS °C/°F Pentype Water Quality Tester with ATC
For Bulk Order Only. Please Contact Us.
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88598 Digital 4 Channels K-type Thermocouple Thermometer SD Card Logger High / Low Alarm Big LCD Display - Gain Express
88598 Digital 4 Channels K-type Thermocouple Thermometer SD Card Logger High / Low Alarm Big LCD Display
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560-10A Shore A Digital Hardness Meter Durometer 0~100HA, Rubber Tire with LCD Display Pocket Size Tester - Gain Express
560-10A Shore A Digital Hardness Meter Durometer 0~100HA, Rubber Tire with LCD Display Pocket Size Tester
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SLM-25 Sound Level Meter with Backlit Display High Accuracy Measuring 30dB~130dB with Data Logging Function Instrument Compact Professional
SLM-25 Sound Level Meter with Backlit Display High Accuracy Measuring 30dB~130dB with Data Logging Function Instrument Compact Professional
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868-5 Waterproof pH meter with Temperature + Auto Calibration - Gain Express
868-5 Waterproof pH meter with Temperature + Auto Calibration
For Bulk Order Only. Please Contact Us.
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E-1325M 0-14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa
E-1325M 0-14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa
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8403 Professional Digital Large LCD Dissolved Oxygen DO Meter Tester Handheld Water Quality Tester with Temperature Measurement
8403 Professional Digital Large LCD Dissolved Oxygen DO Meter Tester Handheld Water Quality Tester with Temperature Measurement
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Ozx-300At O3 Generator W/ Built-In Air Pump Timer Ozone Output 500Mg/hr
OZX-300AT O3 Generator w/ Built-in Air Pump Timer, Ozone Output 500mg/hr
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AG-82413B Digital Protractor Angle Finder Level Inclinometer Magnetic V-Groove 0~360 with Backlight IP65 - Gain Express
AG-82413B Digital Protractor Angle Finder Level Inclinometer Magnetic V-Groove 0~360 with Backlight IP65
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7755 Digital CO2 Carbon Dioxide Temperature RH Humidity DP WB NDIR Sensor Indoor Air Quality 9999ppm USB Monitor Logger - Gain Express
7755 Digital CO2 Carbon Dioxide Temperature RH Humidity DP WB NDIR Sensor Indoor Air Quality 9999ppm USB Monitor Logger
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New Products
Gem-451 Magnifier Mini Jeweler Loupe (10X / 20X 30X) 18Mm High-Quality Optical Triplet Lens Battery
GEM-451 Magnifier Mini Jeweler Loupe (10X / 20X / 30X) 18mm High-Quality Optical Triplet Lens Battery Free Inspection Ideal for Jewelers, Gemologists, Collectors and Repairs
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Gem-450 Jeweler Magnifier Loupe With 6 Uv And Led Light 22Mm Optical Triplet Lens Usb Rechargeable
GEM-450 Jeweler Magnifier Loupe (10X / 20X / 30X / 40X) with 6 UV and LED Light 22mm Optical Triplet Lens, USB Rechargeable Mini Gem Tool
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Slm-441 Decibel Meter Datalogger Sound Level Tester Noise Reader Monitor Spl With 43 000 Data
SLM-441 Decibel Meter Datalogger Sound Level Tester Noise Decibel Reader Monitor SPL Meter with 43,000 Data Record, Visual Alarm, A/C Weighted, PC Connection Colored Screen Display for Home, Classroom, Traffic Noise Monitoring etc.
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Slm-442 Sound Level Meter Datalogger Decibel Noise Tester Spl Monitor With 31 000 Data Record
SLM-442 Sound Level Meter Datalogger Decibel Noise Tester SPL Monitor with 31,000 Data Record Function, Visual Hi | Low Alarm A | C Weighted Colored Screen Display for Home, Classroom, Traffic Noise Monitoring etc.
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Ctm-444 Professional Thickness Gauge Ultrasonic Meter Datalogger 1.0~300.0Mm (0.03~11.8Inches)
CTM-444 Professional Thickness Gauge Ultrasonic Thickness Meter Datalogger 1.0~300.0mm (0.03~11.8inches) Record 1500 Data MAX|MIN|AVE Reading Colored Screen for Steel, Metal, Ceramics etc. Measurement
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Phm-443 Digital Pentype Ph Meter High Accuracy Colored Screen | Red Backlight Alarm 3-Point
PHM-443 Digital Pentype pH Meter High Accuracy Colored Screen | Red Backlight Alarm | 3-Point Calibration with Temperature Measurement ATC Function for Liquids in Laboratory Food and Medicine Industry
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Slm-413 Wall-Mounted|Desktop Noise Decibel Meter 13’’ Colored Screen Sound Level Tester 130Db
SLM-413 Wall-mounted|Desktop Noise Decibel Meter 13" Colored Screen Sound Level Tester 130dB with Temperature and Humidity Measurement, 12H/24H Clock Display, Adjustable Brightness and Alarm Function
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Std-439R 3 In 1 Home Electric Drilling Dust Collector Wall Mount Laser Level Bracket With Function
STD-439R 3 in 1 Home Electric Drilling Dust Collector Wall Mount Laser Level Bracket with Laser Level Function 2M Red Laser Distance with Horizontal & Vertical Bubble Level
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Sqm-438 3-In-1 Soil Acidity / Alkalinity Ph Tester With Temperature And Moisture Measurement
SQM-438 3-in-1 Soil Acidity / Alkalinity pH Tester with Temperature and Moisture Measurement 8.3-inch Metal Probe for Plant, Seedbed, Flower Farm, Agriculture, Orchard Soil Testing
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Lkd-431 Halogen Gas Leak Detector High Sensitivity For Air Conditioning Repair Car Pipelines
LKD-431 Halogen Gas Leak Detector High Sensitivity for Air Conditioning Repair, Car Repair, Gas Pipelines, Industrial Plant, Home Use with 10.5-inch Gooseneck Probe Visual, Audible and Vibration Alert
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Aqm-434 Gas Leak Detector 4-In-1 H2S|Ex|O2|Co Tester Analyzer Instant Alerts Audible Light
AQM-434 Gas Leak Detector 4-in-1 H2S|EX|O2|CO Tester Analyzer Instant Alerts Audible, Light, Vibration Alarm Natural Methane Gas Detector IP68 with Data Storage Portable Rechargeable
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Cab-430 Fiber Optic Power Meter Vfl Ref Fc Sc St Visual Fault Locator Hd Colored Lcd Display
CAB-430 Fiber Optic Power Meter VFL REF FC SC ST Visual Fault Locator HD Colored LCD Display Fiber Optical Cable Tester Network Tools
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Emf-427 Solar Power Meter Sun Light Radiation Testing For Energy Research Meteorology Agriculture
EMF-427 Solar Power Meter Sun Light Radiation Testing for Solar Energy Research Meteorology Agriculture Sun Light Energy Measuring Tool
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Plt-433 Floating Pool Lights Waterproof Solar Powered Night Flame Flickering Accessories Ip68 With
PLT-433 Floating Pool Lights Waterproof Solar Powered Night Flame Lights Flickering Pool Accessories IP68 with Remote Control 3 Light Modes Outdoor Decoration Lamp for Pool Porch Courtyard Gardens Lawns
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Lkd-432 Refrigerant Leak Detector Handheld 17-Inch Gooseneck Probe Sensor Heating Diode Tester For
LKD-432 Refrigerant Leak Detector Handheld 17-inch Gooseneck Probe Sensor Heating Diode Leak Tester for Air Conditioning and Refrigeration System with Buzzer, Visual Alarm and LCD Bar Graph
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Fish Finders

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FFW-335 Fish Finder Wireless Sonar Sensor 125kHz Frequency 45 Meters / 147 Feet Depth Alarm Function and Large LCD Display
FFW-335 Fish Finder Wireless Sonar Sensor 125kHz Frequency 45 Meters / 147 Feet Depth Alarm Function and Large LCD Display
$96.90 USD
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FF-180PR LUCKY Underwater Camera Fish Locator Finder 120° Wide Angle 20M Cable Length 4 IR LED 4.3" Display Video Photo Capture Rechargeable
FF-180PR LUCKY Underwater Camera Fish Locator Finder 120° Wide Angle 20M Cable Length 4 IR LED 4.3" Display Video Photo Capture Rechargeable
$130.90 USD
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Ff-180Ar Lucky Underwater Camera Fish Locator Finder Sun-Visor Liftable Protective Cover 120° Wide
FF-180AR LUCKY Underwater Camera Fish Locator Finder Sun-Visor Liftable Protective Cover, 120° Wide Angle 20M Cable Length 4 IR LED 4.3" Display Video & Photo Capture Rechargeable
$112.90 USD
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Ff-218Tpa Lucky Fish Finder Color Display Fishfinder Fishing Locator Wireless Sonar Sensor 45M
FF-218TPA LUCKY Fish Finder Color Display Fishfinder Fishing Locator, Wireless Sonar Sensor 45m (147.6ft) Depth Range, Shallow Slop Raft Ice Mode Air & Water Temperature Air Pressure
For Bulk Order Only. Please Contact Us.
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Testimonials

I am very excited to try this meter out. It has such an affordable price for a data logging meter. Gain Express Customer Service has been fantastic - very punctual and responsive. Thank you Gain Express!

Haralami S.

I purchased some items from Gain Express and they gave me a quick delivery. Thank you very much for your best service.

BSCS Science Learning

It was really awesome service your company provides, especially your customer care department. They respond very quickly about any query. 

Godin A.