Sharp steel probe easily pierces wire insulation to inspect circuits. The circuit board has line protection function, which is safer and more resistant to burning. Can be used to detect power, ground, and find shorts and breaks in wires.
eBay
ANENG BT-168 PRO Battery tester Capacity Checkered load analyzer Digital Battery Tester Universal
Aliexpress UK
(battery not included). display: 1999. 2 x Test Leads 1 x English Manual. DC Current: 2mA-10A ±(1.0%+2dgts). Pls remove the pen and cut off the power before replacing battery and fuze.
eBay
Bt-168Pro Battery Tester Checker, Digital Display Battery Tester Checker for 9V 1.5V, AA AAA C D
Aliexpress UK
1 x Set of DY4100 Digital Earth Ground Resistance Tester. Earth Ground Resistance:0/20/200/2000Ω. Low Battery Warning. Power: AA 1.5V x 6(UM3)12v x 1(not include). Automatic range.
eBay
Digital Battery Tester LCD Display AA/AAA/9V/1.5V Coin Cell Battery Capacity Tester Check Load
Aliexpress UK
8 In 1 Digital Tester Pen Pool Water Quality Monitor. You may also like.
eBay
PH Meter & TDS Meter Digital Water Quality Tester 0-14 PH Meter Tester 0-9990PPM TDS&EC LCD Water
Aliexpress UK
Sharp steel probe easily pierces wire insulation to inspect circuits. Bulb: 3W, Bulb Cord Length: 102mm/4.0". The circuit board has line protection function, which is safer and more resistant to burning.
eBay
NEW! Handheld Rechargeable LED Integrated Circuit Tester Transistor Diode Triode Tester Digital
Aliexpress UK
Display: LCD. DC Current: 200uA, 2000uA, 20mA, 200mA. AC Current: (Take it only as reference) 200uA(±5% of rdg), 2000uA (±3% of rdg). Auto Range Resistance: 200Ω, 2KΩ, 20KΩ, 200KΩ, 2MΩ, 20MΩ. 20mA (±5% of rdg), 200mA (±3% of rdg) (Frequency Range: 40~400Hz).
eBay
USB Voltmeter Ammeter Current Voltage Tester LCD Digital Display Power Battery Capacity Tester
Aliexpress UK
WIDELY APPaLICATION: The multifunctional automotive circuit tester is the most versatile and practical test tool for circuit maintenance. Quickly check car headlights, taillights, turn signal circuits, faulty sockets, connections, fuses, broken wires, and more.
eBay
QHTITEC XL830L Digital Multimeter Esr Meter Testers Automotive Electrical Dmm Transistor Peak Tester
Aliexpress UK
(battery not included). 13: Low Battery Indication: Yes. Diode: Yes. 2 x Test Leads 1 x English Manual. DC Current: 2mA-10A ±(1.0%+2dgts). Pls remove the pen and cut off the power before replacing battery and fuze.
eBay
Digital LCD Display PC Computer 20/24 Pin LCD Power Supply Tester Check Atx Source Tester Power
Aliexpress UK