Great to check household outlets, fuses, Batteries (including Vehicles), automotive circuitry, etc. Low battery indication, audible continuity sensor checks that the circuit or wires conduct electricity.
eBay
VFL 30KM 10MW 30MW Fiber Optic Tester Pen Tool FTTH Red Laser Optical Red Light Pen Visual Fault Locator USB charge LED lighting
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
Satlink ST-6986 PRO DVB-S2/S, DVB-T/T2, DVB-C ST6986 h.265 hevc 10bit meter with Fiber Optic tester ST 6986
Aliexpress UK
Fuse protection: F 200mA/250V. Resistance Range: 200Ω ± (0.5%+10), 2kΩ/20kΩ/200kΩ/2MΩ ± (0.8%+5). DC Current: 200μA/2mA/20mA ±(0.8%+5), 200mA ±(1.0%+5), 10A ±(2.0%+5). We are closed on weekends. You don't need to worry about giving out money or personal information.
eBay
Noyafa Underground Cable tester NF-816L Anti-Interference Cable Tracker Electrical Wire Tracer Cable Locator Network Tools
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
Mini 4 in 1 Multifunctional Optical Power Meter Visual Fault Locator Network Cable Test Optic Fiber Tester OPM 1mW 20mW 30mW VFL
Aliexpress UK
Installation: insert the jack of the product into a cigar socket. Insert the jack of the product into a cigar socket. Clean the cigar socket. Greater than 12.0 (12V CAR) OR 24.0 (24V CAR)(for reference only).
eBay
NanoVNA-H Vector Network Antenna Analyzer 10KHz-1.5GHz MF HF VHF UHF W/ Shell SD Card Slot Supprt 32G Digital Nano VNA-H Tester
Aliexpress UK
About 2.2cm. about 2.6cm. It works for 12V-24V. LED Color:Red / Blue / Green. Display Type:Digital display. Other Part Number. Interchange Part Number. High-concerned chemical.
eBay
AUA-Y510A Optical Power Meter(OPM -50 ~+26dBm)&Visual Fault Locator(50/1/10/20/30mw VFL) FTTH Fiber Tester Tool Kit (Optional)
Aliexpress UK
Battery Tester. simple instructions on tester. easy to read colour coded display. tests batteries and charging system. heavy Duty.
eBay
Noyafa Underground Cable Locator NF-817 Visual Fault Wire Tracer Anti-Interference Cable Tester Professional Cable Finder
Aliexpress UK
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. Designed with a high standard aluminum heat sink in the middle for better heat dissipation.
eBay
NOYAFA NF-916 4 In 1 Optical Fiber Tester Optical Power Meter VFL REF FC SC ST Visual Fault Locator LCD Display Network Tools
Aliexpress UK