ANLCE SP20 Spark Plug Tester for $17.99

Amazon is offering the ANCEL SP20 Dual Port Spark Plug Tester for $17.99 with free Prime shipping. This deal presents a significant reduction from the original list price of $38, saving you $20.01. The tester is compatible with 12V gas engines such as cars, motorcycles, and lawn equipment, and features a dual-socket design, one-button operation, and a clear safety cover for easy inspection of spark plug condition. Shipping is free with Prime or on orders over $35. The discount makes this a good deal for those needing a spark plug tester, especially considering the price drop and the original price of $38.