OKS1: Spark Plug Sensor- Spark Tester
 | A new way to test for spark, voltage, and misfiring
in three easy steps and with only one tool!
Step 1 - Turn the unit on & select “real time-engine running” or “snapshot-no start” mode
Step 2 - Simply place the probe at the end of the spark plug boot without having to remove any wires or plugs
Step 3 - Instantly detect if their is voltage (red LED) present and if the spark plug (green LED) is firing while under compression
• No need to remove spark plug, tests for spark under full engine compression - provides more accurate test results
• Instantly detect spark and voltage
• Quickly identifies misfires |
See What Mike Allen, Senior Automotive Editor, wrote in "Popular Science"
"I turned the old pickup's key and knew instantly--it was dead. There was no juice left in the battery. Someone had rescued a garage-find dead battery, charged it and shoehorned it into the truck on the cheap. The bad battery fried the aging alternator, and it wound up in my shop for a charging-system transplant. Hours later, after a new battery and alternator had been installed and I'd chased a couple of parasitic drains, the engine still wouldn't start. I'd been tinkering around in the fuse box, so I figured I had jiggled some of the shaky wiring harness loose. In these situations, one of the first things to do is check for spark. Just pull a plug wire, clip on the spark tester, crank the motor and look for spark jumping the gap, right?
There's an easier way: the OK Spark plug tester.
Just hold the tester's probe near a plug wire (or even near a coil-on-plug coil assembly) and you can tell if the plug is firing. It will even detect a fouled plug, something a conventional spark-gap type of tester won't do without removing the plugs. It's a huge time-saver. I just had to hold the probe near any of the plug wires while someone cranked the engine. I found my problem in the injection harness easily, knowing for certain I had spark. OK Spark means you don't have to pry stubborn plug connectors off, keeping you clear of the engine's red-hot exhaust manifolds."
; "OKS1: Spark Plug Sensor- Spark Tester")
