This is a device used to simulate an electrical load, usually for testing purposes. It can also be used to test current of a USB cable so you could judge if the cable is of good quality. If you do not receive our reply within 48 hours, pls.
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30MW/20MW/10MW/5KM Visual Fault Locator,Fiber Optic Cable Tester 5-30KM Range,Red Laser Light Pen,Type SC/FC/ST
Aliexpress UK
Adapter battery: The digital battery monitor is suitable for DC8-30V lead-acid batteries, ternary lithium batteries, and iron lithium batteries. Added type c and usb interface, built-in external temperature probe can be used as temperature sensor.
eBay
ONTi 10mW Visual Fault Locator Fiber Optic Cable Tester 30mw Red Laser Light 5-30KM Pen Type Visual Fault Locator SC/FC/ST
Aliexpress UK
Adapter battery: The digital battery monitor is suitable for DC8-30V lead-acid batteries, ternary lithium batteries, and iron lithium batteries. Compatible battey type: Ternary Lithium / Lead-acid / LiFePO4.
eBay
Rechargeable fiber optic tester, fault visual locator15MW, 30 MW, 50MW, 3200mah largebattery supportSC, FC, ST,VFL Red Light Pen
Aliexpress UK
Adapter battery: The digital battery monitor is suitable for DC8-30V lead-acid batteries, ternary lithium batteries, and iron lithium batteries. Added type c and usb interface, built-in external temperature probe can be used as temperature sensor.
eBay
All-in-one Optical SAIVXIAN Power Meter Fiber Optic Tester with 5-30Mw Visual Fault Locator 5KM 10km 20KM 30km VFL
Aliexpress UK
Perfect for RC enthusiasts looking to keep their batteries in top condition, this convenient tool ensures optimal performance and longevity for your vehicles. Versatile: Works with LiPo,LiFe, Li-ion, NiCd and NiMH batteries.
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COMPTYCO Visual Fault Locator FTTH Pen Type Fiber Optic Cable Tester 1/10/20/30/50/60/80mw VFL SC/FC/ST 2.5mm Interface
Aliexpress UK
6-LED display, clearly present the alternator and battery state. Battery overload display. Alternator state. 1 x 12V battery tester. Fit for all 12 V car, motorcycle battery etc. Battery State. Small size and light weight, convenient to carry.
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OFW 2025 FWV-100 20KM Optical Fault Finder VFL optical time-domain reflectometer FTTB FTTH breakpoint tester Meter, Fiber Ranger
Aliexpress UK
Adapter battery: The digital battery monitor is suitable for DC8-30V lead-acid batteries, ternary lithium batteries, and iron lithium batteries. Compatible battey type: Ternary Lithium / Lead-acid / LiFePO4.
eBay
1/10/20/30/50MW Mini Visual Fault Locator Optical Fiber Cable Tester 2.5mm(SC/FC/ST) Interface FTTH Fiber Optic Tool VFL
Aliexpress UK
Automatically powers off when unused, preserving battery life. PA & Live Sound. Test range: 90-1000VAC. Flashing LED and audible warning tone. Vehicle Accessories. Indoor Heating, Cooling & Air. Computer Music.
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SAIVXIAN A-50/A-50+ Active Optical Fiber Identifier Fiber Cable Tester Detector with 30mw Visual Fault Locator
Aliexpress UK