Your fall top sellers are here. Check out what’s trending this season. Shop Now >

Link to Lowe's Home Improvement Home Page

Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

TRIPLETT Indoor Air Quality Monitor

Identifies the presence of combustible gases such as methane, propane, butane, ammonia, carbon monoxide and many others
TRI Mode Detection: Visual, audible and vibration alerts
Five red LEDs display threshold levels of measurement with two (Low and High) sensitivity settings

Best Price. Guaranteed

Find a lower price on an exact item? We'll match it. Some exclusions apply.

FREE Returns

Return it in store or ship it back for free. Eligibility rules apply.

Pay Your Way

Credit card, PayPal or Buy Now, Pay Later options available at checkout. Your choice.

The Triplett Model GSM100 Combustible Gas Detector identifies the presence of combustible gases such as Methane, Hydrogen, Carbon Monoxide, Propane, Ethylene, Ethane, Hexane, Benzene, Iso-Butane, Ethanol, Acetaldehyde, Formaldehyde, Toluene, P-Xylene, Ammonia, and Hydrogen Sulfide. It will also detect common mixtures that would include or emit more than one of these gases: Natural Gas (typically consists of a high percentage of methane and smaller percentages of propane and other gases), Paint Thinners, Industrial Solvents, Dry Cleaning Fluids, and Gasoline. The GSM100 has a 16" (406mm) adjustable gooseneck probe with replaceable heated sensor, TRI Mode Detection (visual, audible and vibration alerts), five red LEDs that display the threshold levels of a measurement with two (Low and High) sensitivity settings, plus audible tick (85dB) and vibration alert rates that increase as the detected gas level gets stronger. It has an auto zero calibration in fresh air, a Hold button that freezes the measurement, and an Auto power off with disable to conserve battery life. Includes a rechargeable Li-Po battery and AC charger. 1 year warranty.

Identifies the presence of combustible gases such as methane, propane, butane, ammonia, carbon monoxide and many others
TRI Mode Detection: Visual, audible and vibration alerts
Five red LEDs display threshold levels of measurement with two (Low and High) sensitivity settings
Audible tick (85dB) and vibration alert rates increase as the detected gas level gets stronger
16" (406mm) adjustable gooseneck probe with replaceable heated sensor
Auto zero calibration in fresh air
Hold button freezes the measurement
Auto power off with disable conserves battery life