Klein Tools Gas Leak Detector Provides Fast and Accurate Detection Of Combustible Gases In A Compact, Pocket-Sized Design. Featuring A Wide Detection Range From 100 to 2, 000 PPM, It Identifies Both Minor and Major Leaks With Precision and Reliability. Multi-Level Led Visual and Audible Alerts Provide Instant Feedback, Ensuring Visibility and Awareness Even In Noisy or Low-Light Environments. 30-Second Automatic Zeroing Upon Startup Allows Quick Setup and Trusted Accuracy.