- Sensor Compatibility
- Typically accepts 'Smart Sensor' modules for detecting a wide range of gases, including toxic, flammable, and oxygen, with over 30 types commonly available.
- Detection Range & Accuracy
- Accuracy for this class of equipment is commonly within ±5% of the measured value, dependent on the specific sensor module in use.
- Display
- Units typically feature a backlit graphics LCD for visibility in various lighting conditions.
- Alarms
- Commonly includes three levels of gas concentration alarms, a low flow alarm, and a low battery alarm.
- Sampling Modes
- Supports both instantaneous and timed sampling modes for operational flexibility.
- Data Logging
- Often stores significant data points, with capacities of up to 12,000 data points and customisable intervals (e.g., 1–60 minutes) being typical.
- Power Supply
- Typically powered by D-cell alkaline batteries, offering extended operation, often supplemented by a NiCad rechargeable backup for shorter periods.
- Pump
- Units commonly incorporate an internal rotary vane pump, providing a consistent flow rate for sampling.