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- Loud 90 dB horn
- Battery status indicator
- Real-time clock
- Hydrophobic filter
- Dust inhibiting particulate filter (inside inlet)
- LED alarm indicator
- Voice Assist speaker, with four language options
- User selectable internal sampling pump/diffusion
- Multi-use port (charger, data logging)
- Field interchangeable NiMH or alkaline batteries
- Interchangeable plug-in sensors
- Simple one-button operation
- 4-line automatic backlit display
- Easy calibration
- Non-intrusive battery compartment
- Rugged RFI/EMI resistant aluminum case
