Methane and Carbon Monoxide Detection MeterTwo Gas Concentration Handheld Meter
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- Split-Screen Color LCD
- Intrinsically Safe (Low-Energy) Design
- One-Button Operation
- Auto Zero Calibration
- Adjustable High and Low Alarms
- Separate Sensor Fault and Low Battery Alarms
- Self-Test Mode
- Rugged, Anti-Slip, IP65 Housing
- Includes USB Charging Cable
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The HHAQ-109 gas concentration meter simultaneously detects Methane and Carbon Monoxide making it the ideal device for detecting gas leaks in mines, chemical plants, refineries and construction tunnels. The HHAQ-109 displays the current level of each gas as well as the STEL (short term exposure limit) and TWA (time weighted average). Concentration alarms are programmable in three modes (audible, visual and vibrating). The catalytic/electrochemical sensor uses natural diffusion sampling (typical sensor life 2 years).
The HHAQ-109 is powered by a rechargeable lithium-ion battery and includes the charger.
CH4: 0 to 100% LEL (lower explosive limit)
CO: 0 to 1000 ppm
Measurement Accuracy: ±2% of full-scale value
Response Time: < 30 seconds to 90% of final value
Alert Levels: 200 ppm STEL +
35 ppm TWA for CO, 15 ppm STEL +
10 ppm TWA for H2S
High, Low Alarm Ranges:
CH4: 25 to 80% LEL with 50% LEL default, 10 to 25% LEL with 20% LEL default
CO: 100 to 500 ppm with 200 ppm default, 25 to 100 ppm with 35 ppm default
Sensor Type: Catalytic (CH4), electrochemical (CO)
LCD Size: 42 mm (15/8") diagonal
Enclosure: NEMA 4 (IP65)
Operating Life with Fully Charged Battery: 8 hours under non-alarm conditions
Operating Temperature: -20 to 50°C (4 to 122°F) @ 5 to 95% RH, non-condensing
Dimensions: 116 L x 66 W x 31 mm D (4.6 x 2.6 x 1.2")
Weight (with Battery): 200 g (7 oz)