KOOLERTRON best sellers

#1 DDS Signal Generator Koolertron DDS Signal Generator Counter, 2" Screen Display 25MHz High Precision Dual-Channel Arbitray Waveform Generator Frequency Meter 200MSa/s

$96.99 on Amazon

#2 Upgraded 15MHz DDS Signal Koolertron Upgraded 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (15MHz)

$118.99 on Amazon

#3 🆕 Mass Air Flow Sensor Koolertron Mass Air Flow Sensor Meter MAF 22680-7S000 Compatible for Nissan Armada Altima Infiniti Suzuki, Frontier,Murano, Rogue, Xterra, FX45 M37,Q45, 14-18 Q70

$9.49 on Amazon

#4 4.3 inch LCD Digital Koolertron 4.3 inch LCD Digital USB Microscope,8MP 1-1000X Magnification Handheld Digital Microscopes,8 LED Light,Rechargeable Battery,Microscope for Coins/Plant/Rock/Circuit Board

$59.99 on Amazon

#5 0/4 20mA DC 0 10V Signal Koolertron 0/4-20mA DC 0-10V Signal Generator,2-IN-1Portable Mini Function Generator Built-in 1000mAh Rechargeable Battery,Analog Generator with 4-Digit LCD Display,Accuracy 0.01,for PLC/Panel Testing

$27.89 on Amazon

#6 Mini Phone Microscope Koolertron Mini Phone Microscope with LED Light,Universal Clip and CPL,200X Portable USB Microscope Camera Accessory,Pocket Microscope for Kids and Adults,Compatible with iPhone/Andriod Phone/iPad

$30.99 on Amazon

#7 Upgraded 7 inch IPS Touch Koolertron Upgraded 7 inch IPS Touch Screen H.265 4K IPC-9800 Plus IP Camera Tester CCTV CVBS Analog Tester Built in WiFi with POE/WIFI/8G TF Card/HDMI Output/RJ45 TDR/Dual Window Test/Firmware

$316.88 on Amazon

#8 Upgraded 30MHz DDS Signal Koolertron Upgraded 30MHz DDS Signal Generator Counter,High Precision Dual-channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (30MHz)

$138.89 on Amazon

#9 Upgraded 60MHz DDS Signal Koolertron Upgraded 60MHz DDS Signal Generator Counter,High Precision Dual-channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (60MHz)

$159.99 on Amazon

#10 Aluminum Alloy Microscope Koolertron Aluminum Alloy Microscope Stand Portable Adjustable Manual Focus Digital USB Microscope Holder Support Adjusted Up and Down

$19.99 on Amazon

#11 Programmable DDS Signal Programmable DDS Signal Generator Counter,Koolertron Upgraded 80MHz 3.5inch Screen High Precision Dual-Channel Arbitray Waveform Function Generator Frequency Meter 300MSa/s

$282.99 on Amazon

#12 5" LCD Digital Microscope Koolertron 5" LCD Digital Microscope Video Microscope with in-Line Control,1000x,Support SD Card,1080FHD USB Microscope with WiFi Function and Metal Stand, Compatible with Windows iPhone Android iPad

$44.99 on Amazon

#13 7" LCD Digital Microscope Koolertron 7" LCD Digital Microscope with 32G TF Card,12MP 1-1200X Magnification Handheld USB Microscope Camera,8 LED Light,Rechargeable Battery Microscope for Coins/Plant/Insect/Rock/PCB Soldering

$89.99 on Amazon

#14 4.3 inch IPS Digital Koolertron 4.3 inch IPS Digital Microscope,1080P 50-1000X Magnification Handheld Digital Microscope with 32g TF Card,8 LED Light,Rechargeable Battery Microscope for Coins/Plant/Rock/PCB Soldering

$55.99 on Amazon

#15 30A MPPT Solar Charge Koolertron 30A MPPT Solar Charge Controller ,12V/24V Solar Panel Regulator with 5V USB Output Multip Circuit Protection Work with AGM, Gel, SEL, Flooded and Lithium

$65.99 on Amazon

#16 DDS Signal Generator Koolertron DDS Signal Generator Counter, 2.8in Screen Display 80MHz High Precision Dual-Channel Arbitrary Waveform Generator Frequency Meter 275MSa/s

$205.99 on Amazon

#17 DDS Signal Generator Koolertron DDS Signal Generator Counter, 2.8in Screen Display 60MHz High Precision Dual-Channel Arbitrary Waveform Generator Frequency Meter 275MSa/s Function Generators for Scientific,Laboratories

$188.99 on Amazon

#18 20A MPPT Solar Charge Koolertron 20A MPPT Solar Charge Controller ,12V/24V Solar Panel Regulator with 5V USB Output Multip Circuit Protection Work with AGM, Gel, SEL, Flooded and Lithium

$45.99 on Amazon

#19 Geiger Counter Nuclear Koolertron Geiger Counter Nuclear Radiation Detector, Rechargeable Precise Radiation Dosimeter with LCD Display, Handheld β γ X-Ray Radiation Monitor Meter Device for Lab Industry Home, 5 Dosage Units

$39.89 on Amazon

#20 Kolertron Phone Microscope KOOLERTRON Kolertron Phone Microscope Lens, 150X Phone Microscope for CPL Lens/LED/UV Light/Universal Clip, Mini Pocket Digital Microscope, Portable Pocket Phone Microscope Lens Attachment

$44.99 on Amazon