Description: -Designed for ignition systems with coil-on plug. -Test for no-start conditions & Measures available coil output. -Adjustable gap allows preset from 0 to 40kV. -Made in USA. -Quality is guaranteed. -MPN: Thexton 458 or THE458. Instructions: -Warning!! High Voltage!! Do not hold tester while checking for Spark! -Remove ignition coil mounting bolt(s) & remove ignition coil. Adjust spark tester gap to 35KV. -Plug spark tester into boot covering all ribs on the tester housing. Connect ground clip to a good ground. -Crank engine and check for spark. Spark intensity should be consistent during cranking. -Brand New in Factory Package. ***********************shipping via J&T Express if "other" shipping option is selected. Estimated 1 day delivery time, KL and Selangor only | Penghantaran menggunakan J&T Express jika pilihan penghantaran "other" dipilih. Jangkaan sampai 1 hari, untuk Kuala Lumpur dan Selangor sahaja ******************** FAQs Q: Are goods immediate stock?| Barang ada tak? A: If the photo not blur-blur meaning got stock | Ada. Q: How soon you can ship? | Bila boleh pos? A: The poslaju and J&T is beside my shop | Esok pagi.