Spark Plug Tester Features
- Dual testing holes for simultaneous testing of two spark plugs
- Comparative analysis for accurate judgment of spark plug condition
- Durable and high-quality material for long-lasting performance
- Portable and lightweight design for effortless use
Product Specifications
| Type | Car Spark Plug Tester |
| Material | Plastic |
| Color | Black |
| Input | AC 100-240V |
| Output | DC 12V 1A |
| Size | 14.5*8.5*4.0cm/5.7*3.3*1.6 (L*W*H) |
| Net Weight | 220.0g/7.8oz |
Operating Instructions
- Turn off power before placing spark plugs
- Avoid touching spark plugs during operation
- Place spark plugs in tester holes 1 or 2 for comparison
- Connect to power supply and adjust frequency as needed




