Perspective view of the orange and black Klein Tools ET190 gas leak detector featuring a slim pen-style design with a heavy-duty pocket clip, multi-level LED indicator, and high-precision combustible gas sensor.
Product infographic listing the 10+ combustible gases detected including Methane, Butane, Propane, and Natural Gas, featuring a 1-second response time for professional HVAC safety inspections.
Key features infographic highlighting the multi-level visual and audio alerts, the built-in LED work light for dark environments, and the removable battery compartment for the included 2x AAA batteries.
Product dimensional view showing the 6.4-inch compact design of the gas detector with a circular inset demonstrating the tool being carried in a shirt pocket using the integrated pen clip.
Four-panel application graphic illustrating the gas sniffer's use for kitchen appliances, gas stoves, HVAC boiler systems, residential gas meters, and outdoor propane tank inspections.
Action shot of a technician using the ET190 gas detector to inspect a residential HVAC furnace unit, highlighting the 30-second auto-zeroing feature for fast jobsite setup.
Macro action shot of the gas leak detector pinpointing seepage on a black iron gas pipe fitting, demonstrating the wide 50 to 2,000 ppm detection range for minor and major leaks.
Action detail showing the high-powered integrated LED work light illuminating a dark mechanical furnace cabinet, allowing for precise sensor placement and visual alert monitoring in low-light areas.
Klein Tools Manufacturing promotional video
Perspective view of the orange and black Klein Tools ET190 gas leak detector featuring a slim pen-style design with a heavy-duty pocket clip, multi-level LED indicator, and high-precision combustible gas sensor.
Product infographic listing the 10+ combustible gases detected including Methane, Butane, Propane, and Natural Gas, featuring a 1-second response time for professional HVAC safety inspections.
Key features infographic highlighting the multi-level visual and audio alerts, the built-in LED work light for dark environments, and the removable battery compartment for the included 2x AAA batteries.
Product dimensional view showing the 6.4-inch compact design of the gas detector with a circular inset demonstrating the tool being carried in a shirt pocket using the integrated pen clip.
Four-panel application graphic illustrating the gas sniffer's use for kitchen appliances, gas stoves, HVAC boiler systems, residential gas meters, and outdoor propane tank inspections.
Action shot of a technician using the ET190 gas detector to inspect a residential HVAC furnace unit, highlighting the 30-second auto-zeroing feature for fast jobsite setup.
Macro action shot of the gas leak detector pinpointing seepage on a black iron gas pipe fitting, demonstrating the wide 50 to 2,000 ppm detection range for minor and major leaks.
Action detail showing the high-powered integrated LED work light illuminating a dark mechanical furnace cabinet, allowing for precise sensor placement and visual alert monitoring in low-light areas.
Klein Tools Manufacturing promotional video
KLEIN TOOLS

Klein Tools ET190 Gas Leak Detector Combustible Gas Sniffer Methane Propane Butane 50 to 2000 ppm Range Escalating Audible LED Alert HVAC Plumbing Tool

Only 2 left
SKU: ET190
$34.98

Description

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Professional Pocket-Sized Safety: Fast and Accurate Combustible Gas Detection for HVAC and Plumbing Experts

The Klein Tools ET190 Gas Leak Detector is a high-precision safety instrument engineered for professionals who need to identify combustible gas leaks in seconds. Built with a sophisticated sensing element, this tool offers a wide detection range from 50 to 2,000 ppm, allowing you to pinpoint everything from minor seepage to major hazardous leaks. Whether you are inspecting gas lines, water heaters, or commercial boilers, the ET190 provides instant feedback through a multi-level visual LED display and escalating audible alerts. Its slim, pen-style design with an integrated pocket clip ensures that life-saving detection is always within reach and ready for duty on every service call.

Simplicity meets industrial reliability with the ET190's advanced software features. The tool utilizes a 30-second automatic zeroing process upon startup, ensuring that your baseline is perfectly calibrated to the current environment for trusted accuracy every time. Technicians can easily toggle between High and Low sensitivity modes, allowing for specialized detection in drafty areas or narrow spaces while minimizing false alarms. Constructed from high-impact materials and powered by two included AAA batteries, this gas sniffer is the definitive choice for plumbing, HVAC, and facility maintenance professionals who refuse to compromise on jobsite safety and technical precision.

Key Features

  • Wide Detection Spectrum: Accurately senses low and high levels of combustible gases from 50 to 2,000 ppm for comprehensive jobsite coverage.
  • Dual-Mode Sensitivity: Toggle between High and Low settings to customize detection accuracy based on the environment and specific gas concentration.
  • Instant Multi-Alert System: Features a bright LED visual scale and escalating audible tones to ensure warnings are noticed in noisy or low-light work zones.
  • Auto-Zero Calibration: 30-second automatic zeroing upon startup provides a reliable baseline and fast setup for immediate use.
  • Ultra-Portable Design: Lightweight, pocket-sized housing with a heavy-duty pen clip allows for convenient transport in tool pouches or shirt pockets.
  • Integrated Work Light: Built-in LED light provides additional visibility in dark cabinets, crawlspaces, and mechanical rooms.

What's Included

  • (1) ET190 Combustible Gas Leak Detector
  • (2) AAA Alkaline Batteries
  • (1) Instruction Manual

Specifications

Specification Details
Brand Klein Tools
Model Number ET190
Detection Range 50 to 2,000 ppm
Gases Detected Methane, Propane, Butane, and more
Calibration Time 30 Seconds (Auto-Zero)
Power Source 2 x AAA Batteries (Included)
Display Type LED and Audible Alarm
Working Temperature 32° to 122° F
Overall Length 6.34 Inches
Overall Width 1.14 Inches
Product Weight 1.8 oz
UPC 092644694998

Pro-Tip: Always power on the ET190 in a "clean air" environment (away from the suspected leak site) to allow the 30-second auto-zeroing feature to calibrate correctly. Once the startup sequence is complete, use the High sensitivity mode to sweep the general area, then switch to Low sensitivity as you move closer to the pipes or fittings to isolate the exact point of the leak.