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The HHAQ-104 is designed to measure Oxygen (O2) concentration, pressure, air temperature and relative humidity with visible and audible alarms. This O2 monitor is an ideal instrument for indoor air quality (IAQ) diagnosis and HVAC system performance verification. The HHAQ-104 features a remote probe and detachable soft in/out tube to reach air-ducts or where access with the probe is not possible.

SPECIFICATIONS

O2:

• Measurement Range: 5.0 to 30.0%
• Accuracy: ±1%
• Resolution: 0.1%

Temperature:

• Range: -10 to 60°C
• Accuracy: ±0.6°C 
• Resolution: 1°C 

Relative Humidity:

• Range: 0.1 to 99% RH
• Accuracy: ±3% RH [at 25°, from 10 to 90% RH], ±5% RH above and belo

• Pressure Range: 30 to 110 kPa
• Memory Capacity: 32,000 readings
• Storage Temperature: -40 to 70°C
• Interface: USB
• Response Time: @ 2 minutes to 100%

Dimensions:

• Meter: 160 H x 60 W x 40 D mm 
• Probe: 142 H x 32 W x 34 D mm 
• Weight: 550 g