DUOYI best sellers

#1 Power Circuit Probe Tester DUOYI Power Circuit Probe Tester 6V-24V DC Test Light Short Circuit Tester Component Activation Electrical Tester Polarity Identify Continuity Tester with LED Light, Long Test Lead, Overload Protection

$19.99 on Amazon

#2 🆕 DUOYI Natural Gas Leak DUOYI Natural Gas Leak Detector for Home Portable Flammable Gas Detection Pen Methane Propane Butane LPG LNG Combustible Gas Leak Locator Gas Sniffer Alarm Monitor Sensor

$17.99 on Walmart

#3 DUOYI Digital Manometer DUOYI Digital Manometer Dual Port Gas Air Pressure Tester Handheld Differential Pressure Gauge Measuring Meter with LCD Display, Green

$34.99 on Walmart

#4 🔥 🆕 Fuel Injector Cleaner DUOYI Fuel Injector Cleaner Kit Universal Fuel Injector Tester And Cleaner Kit,8 Pulse Modes Fuel Injector Cleaning Kit,DIY Fuel Injector Cleaner Tool with 6 Size Cleaning Adapters,12V/5V Output Power

$22.99 on Amazon

#5 Timing Light Automotive DUOYI Timing Light Automotive Engine Timing Lights 12V Ignition Timing Light with Strobe Lamp Inductive Timing Tool Kit Reverse Polarity/Overload Protection Ignition Timing Tool with 4.5ft Lead

$20.59 on Amazon

#6 🔥 Olive Puller for G1/2 DUOYI Olive Puller for G1/2 & G3/4 Ferrule Removal Tool Not Damage The Pipe Ferrule Puller Abrasion & Corrosion-Resistant Compression Sleeve Puller Labor-Saving Compression Ring Puller Plumbing Tools

$17.99 on Amazon

#7 Spark Plug Tester Dual DUOYI Spark Plug Tester Dual Holes Spark Tester Working Frequency 0-6000rpm Spark Plug Tool for 12V Gasoline Vehicles Ignition Coil Tester with A Protective Cover, Spark Plug Not Included

$30.99 on Amazon

#8 Axle Spindle Rethreading DUOYI Axle Spindle Rethreading Tool Set Repair/Cleaning Threading Tools High-Strength Tools Set Easy To Store Thread Restorer Use With 1-1/4" Socket Mechanic Tool Set For M20,22,24 13/16 3/4x20 UNF

$25.99 on Amazon

#9 Short Finder Circuit DUOYI Short Finder Circuit Tester Polarity/Jumper Lead Electrical Tester Overload&Insulation Protection Continuity Tester Automotive Tools with Buzzer Prompt,13FT Long Wire,for 6-24V DC Test

$19.99 on Amazon

#10 Power Circuit Probe Tester DUOYI Power Circuit Probe Tester with Extra 20Ft Extension Cable Continuity/Polarity Circuit Tester AC&DC Voltage Tester Resistance/Diode Electrical Tester Buzzer Prompt Circuit Breaker Finder for 0-65V

$60 on Amazon

#11 Refrigeration Digital DUOYI Refrigeration Digital Manifold Gauge Set for Air Conditioning/Refrigerator Digital Gauges HVAC with Double Pressure&Temp Test Manifold Digital, HVAC Gauges with Hose, Temperature Control Clip, Toolbox

$119.99 on Amazon

#12 Universal Anti scalding DUOYI Universal Anti-scalding Ring for Motorcycle Dirt Bike Exhaust Pipe Motorcycle Muffler Tailpipe Cover Exhaust Silencer Guard Protector Exhaust Pipe Tape Protector Cover with Cable Ties

$11.99 on Amazon

#13 Heated Blanket DUOYI Heated Blanket

$20.99 on Amazon

#14 Valve Pressure Spring DUOYI Valve Pressure Spring Installer Remover High Hardness/Strength Valve Springs Tool Easy To Store Spring Tool,Anti-Rust,Not Hurt The Engines Tools Compatible With B.MW B38 B48 B58 Engines Timing Tool

$199.99 on Amazon

#15 HVAC Digital Manifold DUOYI HVAC Digital Manifold Gauge Set 2PC Temperature Clamps Strong bite Force Digital Refrigerant Gauges Accessories fit for Pipes with a Diameter of 6mm-25mm Temperature Control Clip 1.5 Meters Long

$27.99 on Amazon

#16 Terminal Removal Tool DUOYI Terminal Removal Tool Kit 23 Pcs, Terminal Ejector Kit with Stainless Steel Tips, Ergonomic Rubber Handle and Carrying Case, Universal Terminal Release Kit Replaces The Proprietary Kit

$37.99 on Amazon

#17 Sight Pusher Tool Doesn't DUOYI Sight Pusher Tool Doesn't Hurt The Slide Sight Pusher Corrosion-Resistant Rear Sight Pusher Tool with Side Witness Windows Dovetailed Rear Sight Pusher Tool Compatible with g lock1911SIG

$41.99 on Amazon

#18 Radiator Overflow Tank DUOYI Radiator Overflow Tank 2L Universal Coolant Overflow Tank Aluminum Radiator Overflow Tank Visible Coolant Level Radiator Expansion Tank Used To Prevent Coolant Leakage Coolant Recovery Tank

$49.99 on Amazon

#19 Spark Plug Tester 0 to DUOYI Spark Plug Tester 0 to 6000rpm Adjustable Spark Tester with Two Spark Plug Socket 100-240v with Protective Cover Ignition Tester Heat Resistance Spark Tester Automotive Tools for 14mm/16mm Spark Plug

$30.99 on Amazon

#20 Olive Puller Not Damage DUOYI Olive Puller Not Damage The Pipe Olive Remover Ferrule Puller Corrosion-Resistant Compression Ring Removal Tool Suitable for Brass Pipes with Diameters of NPT 1/2" & NPT 3/4" Ferrule Removal Tool

$17.99 on Amazon