GAIN EXPRESS best sellers

#1 Thermocouple Thermometer GAIN EXPRESS Thermocouple Thermometer Digital K Type Thermometer HVAC Thermometer Dual Temperature Meter with 4 Thermocouples, MAX/MIN/AVG Temperature Measurement, -50~1300°C (-58~2372°F)

$29.99 on Amazon

#2 10 x 21mm Mini Folding GAIN EXPRESS 10 x 21mm Mini Folding Illuminated Loupe Jewelry Magnifier Pocket with LED Light, for Gems Jewelry Jewelers Eye Rocks Stamps Coins Watches Hobbies Antiques Gems

$19.99 on Amazon

#3 Compact Pocket Size Digital Gain Express Compact Pocket Size Digital Shore A Hardness Meter Tester 1-100ha Durometer LCD Display

$29.99 on Amazon

#4 🔥 Digital Tachometer Non GAIN EXPRESS Digital Tachometer Non Contact RPM Meter Laser Photo Tachometer 3~100,000rpm, Contact RPM Tachometer Gauge Speed Meter with Data Hold, Max/Min

$29.79 on Amazon

#5 Sound Level Calibrator GAIN EXPRESS Sound Level Calibrator Decibel Meter Sound Level Reader Sonometro Decibel Meter Calibrator 94db & 114db Output Levels For 1 Inch And 1/2 Inch Mic

$112.90 on Amazon

#6 🔥 0 10% Brix Refractometer GAIN EXPRESS 0-10% Brix Refractometer with ATC Low-Concentrated Sugar Content Solutions Accuracy 0.1% Maple Sap Cutting Liquid CNC Maple Syrup Makers Tea

$22.99 on Amazon

#7 🔥 Digital 4 Channel Thermocouple GAIN EXPRESS Digital 4 Channel Thermocouple Thermometer Temperature Recorder Data Logger AZ Instruments Multi Channel K Type Thermometer Thermocouple Reader with 8G SD Card 2 Bead Type K-Thermocouple Probe

$134.90 on Amazon

#8 Accurate Digital Handheld GAIN EXPRESS Accurate Digital Handheld Stroboscope with Wide Measurement Range, 50~12,000 FPM, for Equipment Fault Detection and Maintenance

$117.90 on Amazon

#9 Shore D Hardness Tester GAIN EXPRESS Shore D Hardness Tester Meter Portable 0-100HD Digital Durometer D for Rubber, Tire, Plastic, Thermal Plastic, Flooring, Bowling Ball with Large LCD Display

$29.99 on Amazon

#10 Professional Sound Level GAIN EXPRESS Professional Sound Level Meter with Backlight Display High Accuracy Measuring 30dB-130dB

$37.90 on Amazon

#11 Quantum PAR Meter for GAIN EXPRESS Quantum PAR Meter for LED Grow Light Full Spectrum PPFD Meter High Precision Quantum Sensor, Light Meter for Plants, Greenhouse and Farming Lux Meter Tester 400-700nm

$85.69 on Amazon

#12 🔥 Foldable Ruby Filter GAIN EXPRESS Foldable Ruby Filter Identification Tool for Emerald and Gemstones

$20.99 on Amazon

#13 USB Temperature Data GAIN EXPRESS USB Temperature Data Logger Recorder for Temperature Humidity and Atmospheric Pressure, IP65 Waterproof Temperature Logger with PDF and CSV Reports High Accuracy

$67.99 on Amazon

#14 Manometer Gas Pressure GAIN EXPRESS Manometer Gas Pressure Tester Digital Air Pressure Meter, 12 Selectable Units Differential Pressure Gauge HVAC Gas Pressure Tester

$29.90 on Amazon

#15 Clinical Refractometer GAIN EXPRESS Clinical Refractometer with ATC, Tri Scale Serum Protein/Urine Specific Gravity/Refractive Index

$22.90 on Amazon

#16 10X Illuminated Jewelers GAIN EXPRESS 10X Illuminated Jewelers Loupe Magnifier with Interchangeable Reticle Scale, LED Light, 25mm Field of View, for Jewelry,Gems, Coins, Hobby Tool

$29.90 on Amazon

#17 Handheld Digital Humidity GAIN EXPRESS Handheld Digital Humidity & Temperature Meter 0~100% RH/ -30~70°C (-22~158°F) LCD Display Backlight Moisture Thermo Hygrometer Thermometer Small Tester Gauge for Home Kitchen Indoor Outdoor

$21.90 on Amazon

#18 Pocket Diffraction Grating Gain Express Pocket Diffraction Grating Gemological Spectroscope for Quick Gemstone Identification and GIA Use

$32.90 on Amazon

#19 🔥 Thermocouple Thermometer GAIN EXPRESS Thermocouple Thermometer HVAC Temperature Meter, Digital Temperature Thermometer with 4 K Type Thermocouple, Dual Channel Temperature Gauge with Alarm & ADJ Compensation (-328~2500℉ Measuring)

$29.90 on Amazon

#20 Automotive Electrical GAIN EXPRESS Automotive Electrical Open&Short Finder Circuit Tester Circuit Finder Detector Tone Generator Cable Wire Breaker Tracker Circuit Fault Finder DC 6-42V Car Diagnostic Tool

$27.99 on Amazon