4 Gas Monitor O2 H2S CO LEL 2.8in Color Screen Sound Light Vibration Alarm for Confined Space Industrial Safety

The 9000A is a 4-in-1 gas detector for O₂ (0-30%VOL), H₂S (0-100ppm), CO (0-1000ppm), and LEL (0-100%LEL). Features 2.8" color screen, sound/light/vibration alarm, 2500mAh battery (10h+), 3000 alarm records, and sensor life up to 2 years. Perfect for confined space, chemical plant, metallurgy, oil & gas, and fire rescue.

 

✅ Warm tips about charging:The battery socket in our Gas Detector is unplugged, and the customer needs to open the battery cover and plug in the battery.

 

Descriptions:

⚙️ Features

✅ 4-Gas Simultaneous Detection – Measures O₂ (0-30%VOL), H₂S (0-100ppm), CO (0-1000ppm), and LEL (0-100%LEL). Electrochemical + catalytic sensors with 2-year lifespan.

✅ 2.8" Color LCD Display – Large full-color screen shows real-time concentration values for all four gases. Battery level, alarm status, and time displayed simultaneously.

✅ Triple Alarm System – Sound (buzzer), light (flashing LED), and vibration alerts. Adjustable high/low alarm thresholds for each gas. Stores up to 3000 alarm records for review.

✅ Long Battery Life & Portable – 2500mAh lithium battery provides ≥10 hours continuous operation. Type-C charging. Weighs only 260g. Includes crocodile clip for easy carrying.

✅ User-Friendly Operation – Power-on self-test with light/vibration/sound check. Intuitive menu with left/right/center buttons. Calibration settings password-protected (for professionals).

📊 Specifications

🔬 Detection Gases : O₂ / H₂S / CO / EX (combustible)
🔬 Sensor Type : Electrochemical (O₂/H₂S/CO), Catalytic (EX)
📏 O₂ Range : 0 ~ 30%VOL, resolution 0.1%VOL, ±5% FS
📏 H₂S Range : 0 ~ 100ppm, resolution 0.1/1ppm, ±10%
📏 CO Range : 0 ~ 1000ppm, resolution 1ppm, ±10%
📏 EX Range : 0 ~ 100%LEL, resolution 1%LEL, ±5% FS
⚡ Response Time : T < 45 seconds
📟 Display : 2.8" LCD color screen
🔔 Alarm : Sound + light (flashing LED) + vibration
💾 Alarm Records : 3000 records storage
🔋 Battery : 3.7V lithium battery, 2500mAh
⏱️ Standby Time : ≥10 hours
🔌 Charging : Type-C (use in safe area only)
🌡️ Operating Temp : -20℃ ~ 50℃
💧 Operating Humidity : <95% RH (non-condensing)
⚖️ Weight : 260g
📏 Dimensions : 165 × 82 × 33mm
🔄 Sensor Life : 2 years (typical)
🧪 Calibration : Recommended every 6 months
🔒 Explosion-proof : Complies with national standards (do not modify structure)

 
 

🧰Ideal for:

  • Industry: chemical plants, oil refineries, mining.
  • Security: Fire brigade, emergency services, enclosed spaces.
  • Environmental monitoring: emission control, job security.

 

⚠️ Important:

  • Regular calibration recommended (every 6 months).
  • Charge only in safe areas.
  • 2-year sensor life – easy replacement via specialist service.
  •  We require Paypal payment only.  
  •  Your order will be cancelled if the payment is not received in one week
  • The item will be shipped within 1 business days from our factory or warehouse in AU/US/UK/DE,within 2-3 business days from our factory or warehouse in China
  • The parcel are usually delivered in 3-5 business days from US/UK/AU/DE,10-35 Business days from China (the Batteries are not included )
  • We will do our best provide best products and high quality service for you.
  • We offer a 30 day money back guarantee for all goods shipped correctly that are no longer required - only if they are unused.
  • For items which are faulty on receipt, you must notify us within 14 days by e-mail via eBay only. We will then inform you of the next steps.
  • If a wrong item is received, the item must be returned to us within 7 days of receipt and we will send the correct item as soon as possible.
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