Bacharach 21-7006 True Spot Kit for Smoke Testing is designed to determine efficient combustion by evaluating smoke density in the flue gases from distillate fuels. The Bacharach True Spot features smoke reading tests that take less than one minute and is recognized as the accepted standard for oil burner smoke tests.
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
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