QRAE 3 is applications include confined space entry and general safety and compliance in:
Industrial safety, oil and gas, Fireground "Toxic Twins" detection, environmental, fire and emergency response

Other Features include
Check on your team from a reomte location.
IP-65/67 water- and dust-resistant case
Strong, protective, concussion-proof design
Real-time gas concentration readings and alarm status enabled by state-of-the-art wireless technology
Unmistakable five-way local and remote wireless notification of alarm conditions
Large graphical display icon-driven user interface through intuitive, simple-to-operate two-button
user interface.
Multi-language support: 17 languages encoded
Easy access to pump, sensors, filter and battery compartment

Running time 14 hours continuous non-wireless, diffusion 11 hours continuous non- wireless, pumped. 10 hours continuous with wireless, diffusion
8 hours continuous with wireless, pumped
Note: All battery specifications at 20 °C; lower temperatures and alarm conditions will affect runtime.

Multi-tone 95dB buzzer (at 11.8"/ 30 cm, typical), vibration alarm, and flashing red LEDs and on screen indication of alarm conditions
Alarms: latching, non latching or manual override
Additional diagnostic alarm and display message for low battery
Pump stall alarm (pumped version only)
Man Down Alarm