Y201 Combustible Gas Detector Manual
※ Before use of this product, please read the instruction manual carefully.
General Instructions
Yeezou 201 combustible gas detector (hereinafter referred to as “detector”) has a high-
performance semiconductor gas sensor with excellent sensitivity, used for detection of leaking
combustible gases such as natural gas or propane in households, factories, hotels, apartments,
and other areas where gas leak localization is desired.
The detector is powered by 3 AAA batteries (not included). The hand-held portable design allows
you to check for gas leaks almost anywhere. The visual LED and audible alarm notify user of
presence and relative concentration of combustible gases. The varying audible ticking rate and
number of lit LEDs help a user determine the rate of gas leak. The quick response sensor bulb
with varying sensitivity dial allows detection of leaks both large and small.
Important Notes
To avoid damaging the sensor’s molecular membrane from overpressure, never use test gas
sources with directed high pressure (such as from a gas pressure nozzle) to do a gas leak test. We
suggest turning on and off a lighter or gas stove to leave gas in the air, then subsequently moving
the detector probe to the gas area to check functionality.
Test use of ultra-high concentration of combustible gas may reduce usability of the detector and
also lead to a flammable hazard.
Technical Specifications
1. Resolution: 50 ppm
2. Alarm range: 10% - 40% LEL
3. Operating temperature: 0 - 55 ℃
4. Relative humidity: ≤ 95% to avoid condensation
5. Warm up time: around 10 seconds
6. Response time: ≤ 2 seconds (10% LEL, Lower Explosive Limit)
7. Gas indication: Visual: 6 red LEDs,
Audible: variable speed ticking
8. Power: 3 x 1.5V AAA battery
9. Battery life: approximately 2 hours of continuous operation under normal usage conditions.
10. Weight: 8.9 oz (240 g) (without batteries)
11. Size: 18.5”x 2.76”x1.38” (47.0cm x 7.0cm x 3.5cm), housing material: plastic
Product Layout
1. LED gas level indicators
2. Warm-up indicator (yellow)
3. Power indicator (green)
4. Low battery indicator (red)
5. ON/OFF Power switch
6. Sensor tip and built-in sensor
7. Goose neck 12” (30 cm)
8. Speaker
9. Sensitivity adjustment dial
10. Battery cover
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