Home › Finds › Tester

24 cheapest tester on AliExpress

We picked 24 tester from AliExpress with real orders and good reviews. Prices go from $1.58 to $4.27, the average rating is 4.8 stars and the most popular one has 53.2k orders. Every product opens on AliExpress, where you pay with buyer protection.

Updated: 2026-11

1. 1-64%Key Switch Keychain Shaft Tester Mechanical Keyboard Fidget Button Fidget Button Finger$1.58 $4.33★ 4.8 · 11.4k soldView on AliExpress →
2. 2-55%Cute Cat Claw Key Chain Key Ring Fingertip Decompression Pressure Toy Keycap Tester Back B$1.72 $3.86★ 4.9 · 5.3k soldView on AliExpress →
3. 3-56%Intelligent Voltage Tester Pen AC Non-contact Induction Test Pencil Voltmeter Power Detect$1.99 $4.55★ 4.6 · 5k soldView on AliExpress →
4. 4-53%RELIFE XA5 Inductance Tester Electromagnetic Non-Contact Fault Detection$2.39 $5.13★ 4.9 · 23.3k soldView on AliExpress →
5. 5-55%Servo Tester RC 3CH Multi ESC Consistency Speed Controller Checker Steering Gear Tool CCPM$2.77 $6.16★ 4.7 · 56 soldView on AliExpress →
6. 6-50%BX100 1-8S Lipo Battery Voltage Indicator Tester Low Voltage Buzzer Alarm 3.7V 7.4V$2.99 $5.96★ 5.0 · 11 soldView on AliExpress →
7. 7-68%Universal Brake Fluid Tester Accurate Oil Quality Diagnostic Tools LED Indicator Liquid Te$3.01 $9.29★ 4.8 · 10k soldView on AliExpress →
8. 8-56%BT-168D Battery Tester Universal Digital LCD Tester AA AAA CD 9V 1.5V Button Cell Voltage$3.21 $7.37★ 4.6 · 2.6k soldView on AliExpress →
9. 9-59%Universal Brake Fluid Tester Accurate Oil Quality Diagnostic Tools LED Indicator Liquid Te$3.22 $7.85★ 4.9 · 20.9k soldView on AliExpress →
10. 10-60%Auto Car Brake Fluid Liquid Tester Pen With Intelligent Display$3.22 $8.04★ 4.9 · 14.3k soldView on AliExpress →
11. 11-50%Automotive Brake Fluid Brake Oil Testing Pen Vehicle Brake Fluid Tester Oil Quality Test D$3.25 $6.50★ 4.9 · 1.1k soldView on AliExpress →
12. 12-55%1/3 Pcs Portable LCD Digital TDS Water Quality Tester Water Testing Pen Filter Meter$3.38 $7.54★ 4.7 · 195 soldView on AliExpress →
13. 13-56%Four-Channel 18650 Battery Capacity and Internal Resistance Tester Automatic Charge-Discha$3.51 $7.96★ 4.8 · 509 soldView on AliExpress →
14. 1424 Pin Female ATX PSU Power Supply Starter Tester Start Up Jumper ON OFF Switch Cable$3.54★ 4.7 · 433 soldView on AliExpress →
15. 15-52%Car Voltage Tester Pen 6V-24V DC, Automotive Circuit Electrical Tester with Test Probe Nee$3.58 $7.46★ 4.8 · 985 soldView on AliExpress →
16. 16-54%ANENG BT189 Button Cell Battery Tester 9V N D C AA AAA Universal Household LCD Display Bat$3.63 $7.91★ 4.7 · 3.8k soldView on AliExpress →
17. 17-58%High Precision Car Tire Pressure Gauge Manometer Mini Dial AUTO Air Pressure Meter Tester$3.65 $8.72★ 4.6 · 1.6k soldView on AliExpress →
18. 18-55%20A 1000V Probe Test Leads Pin for Digital Multimeter Needle Tip Multi Meter Tester Lead P$3.68 $8.19★ 4.9 · 10k soldView on AliExpress →
19. 19-71%6V 12V 24V Car Truck Voltage Circuit Tester Auto Car Diagnostic Probe Test Pen Light Bulb$3.86 $13.09★ 4.8 · 42.1k soldView on AliExpress →
20. 20-56%12V LED Digital Voltmeter Waterproof Voltage Gauge Meter Battery Tester with Digital Touch$4.07 $9.31★ 4.9 · 1k soldView on AliExpress →
21. 21-57%Universal Brake Fluid Tester Accurate Oil Quality Diagnostic Tools LED Indicator Liquid Te$4.10 $9.59★ 4.8 · 10.7k soldView on AliExpress →
22. 22-46%DC 12V-24V Digital Display Cigarette Lighter Electric Voltage Meter Tester$4.10 $7.60★ 4.8 · 117 soldView on AliExpress →
23. 23-57%Non-Contact Voltage Detector Pen 12-1000V AC Tester, Live Wire Breakpoint Finder, Electric$4.27 $9.92★ 4.9 · 53.2k soldView on AliExpress →
24. 24-59%ANENG VD807 NCV Non‑Contact Voltage Tester Pen 12‑300V Sound Light Alarm Live Neutral Wire$4.27 $10.44★ 4.9 · 8.5k soldView on AliExpress →

Prices and ratings come from AliExpress and can change. We may earn a commission when you buy through our links, at no extra cost to you.