TEKCOPLUS best sellers

#1 10x Foldable Pocket Magnifier TEKCOPLUS 10x Foldable Pocket Magnifier Loupe with UV and LED Light for Jewelry, Rocks, Coins, and Antiques - Illuminated Magnifying Tool for Eye, Stamps, Watches, Hobbies, and Gems

$19.90 on Amazon

#2 🔥 Diamond Tester Jewelry TEKCOPLUS Diamond Tester Jewelry Gem Stone Tester Moissanite Tester Professional 2pt Jewel Stone Combo Tester Kit for Diamond, Moissanite, Metal and Gemstone Selection - High Accuracy Jeweler Test Meter Device

$106.90 on Amazon

#3 Portable Skin Fat Caliper TEKCOPLUS Portable Skin Fat Caliper Tester mm inch LCD Screen Athletic Women/Men Body Tools Monitoring Kit Handheld Body Fat Caliper

$12.09 on Amazon

#4 Handheld Diffraction TEKCOPLUS Handheld Diffraction Spectroscope, Pocket-Sized Grating Gemological Spectrometer in a Gem Tool Jewelers Eye Loupe for GIA Use and Quick Identification Gemstone Jewelry Magnifier

$30.90 on Amazon

#5 Laser Photo Tachometer TEKCOPLUS Laser Photo Tachometer Motor Speed Gauge Tester Non-Contact RPM Meter Motor Speed Gauge Gun - Accurate RPM Measurement with Rotational Record (Digital Tachometer)

$23.99 on Amazon

#6 Gem Spectroscope Focusing TEKCOPLUS Gem Spectroscope Focusing Prism Gemstone Spectroscope with Adjustable Focus Gemology Spectrometer 400-700nm Range for gemological Testing, Antique, Jewelers, Fairs, and Gemstone Identification

$45.90 on Amazon

#7 🔥 Laser Photo Tachometer TEKCOPLUS Laser Photo Tachometer Motor Speed Gauge Tester Non-Contact RPM Meter Motor Speed Gauge Gun - Accurate RPM Measurement with Rotational Record (Tachometer + 10 Reflective Tape)

$25.90 on Amazon

#8 Sound Level Calibrator Decibel TEKCOPLUS Sound Level Calibrator,Decibel Meter Calibration for Noise Measurement Reader,Output Sound Level 94dB & 114dB output levels for 1 inch and 1/2 inch Microphones

$108.90 on Amazon

#9 🔥 20 Pcs Tachometer Tapes TEKCOPLUS 20 Pcs Tachometer Tapes Strips, Reflective Tape for Laser Photo Tachometer Speed Gauge Tester Non-Contact RPM Meter Motor Speed Gauge Gun Accessories

$6.90 on Amazon

#10 Digital RPM Tachometer TEKCOPLUS Digital RPM Tachometer 10-99999 RPM High Accuracy Laser Non-Contact RPM Meter with Reflection Tape, LCD Backlight & Max/Min/AVG, Data Hold, RPM & Counting Speed RPM Tester Rotational

$18.09 on Amazon

#11 0 10% Brix Refractometer TEKCOPLUS 0-10% Brix Refractometer for Testing Sugar Content Maple sap Syrup, Low-Concentrated Sugar Solutions, Tea, Portable Hand Held Sugar Content Measurement with ATC Function and LED Light, pipettes

$17.09 on Amazon

#12 🔥 Polariscope LED Light TEKCOPLUS Polariscope LED Light with Glass Rotatable Filters, Jewelry Polarizer Tester Magnifier Gem Identification Tools for Bench Use Moissanite,Amethyst,Diamonds,Gemstone (Desktop Polariscope)

$102.59 on Amazon

#13 🔥 0 14 pH Electrode Probe TEKCOPLUS 0-14 pH Electrode Probe, pH Meter with Replacement BNC Connector and 300cm Cable Sensor for ph Monitor Controller Tester Meter Kit Set for Aquarium Hydroponics Plant Pool Spa

$17.90 on Amazon

#14 Chelsea Filter for Gemstone TEKCOPLUS Chelsea Filter for Gemstone Identification Quickly Distinguish Genuine Emeralds, Rubies, Sapphires, Aquamarine Glass Filter, Reliable, Portable Ideal for Gemologists and Jewelers

$21.59 on Amazon

#15 🔥 Decibel Meter 13 inches TEKCOPLUS Decibel Meter 13 inches 30~130dB Sound Level Meter, Large LCD Display Wall Hanging Sound Gauge, Noise Level Detector, Decibel Monitoring Device, Time, Temperature, Humidity for Studio Classroom Home

$47.90 on Amazon

#16 2 in 1 Temperature pH TEKCOPLUS 2 in 1 Temperature pH Monitor Meter Tester Sensor test Kit 0~14.0 pH Automatic Buffer Recognition BNC electrode Probe for Hydroponics Aquarium Lab Testing Food Drinking Water pH of saltwater/seawater

$37.59 on Amazon

#17 Heavy Duty Calcite Dichroscope TEKCOPLUS Heavy Duty Calcite Dichroscope Gemstone Tester Trichoic Pleochroic Colors Gemstone Identification Gemstones Gemological Testing Diamond Jeweler Tool Metal Body Gemology

$31.90 on Amazon

#18 Manometer Air Pressure TEKCOPLUS Manometer Air Pressure Meter Dual-Port HVAC Manometer Gas Pressure Tester, 12 Selectable Units Differential Pressure Gauge with Data Record Funtion for Natural Gas Pipelines Ventilation Detection

$31.90 on Amazon

#19 Electricity Usage Monitor TEKCOPLUS Electricity Usage Monitor, Digital Power Meter LCD Plug in Power Watt Voltage Meter, 8 Display Modes for Energy Saving, Watt Meter Outlet, Energy Consumption Factor, Power Consumption Monitor

$20.90 on Amazon

#20 USB Temperature Logger TEKCOPLUS USB Temperature Logger Humidity Data Logger Barometric Recorder with Generate PDF and CSV Reports High Accuracy Cold Chain Storage IP65 Waterproof Compatible Windows XP, 7, 8, 10, 11

$68.90 on Amazon