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GasAlertMicro 5/PID/IR
User Options Menu
In the following order, press and continue to hold each button until 
Tech mode displays below the Language option.
1. Press and hold H with the right index finger.
2. Press and hold G with the right middle finger.
3. Press and hold C with the left thumb.
4. Press C to enter Tech mode. The options are as 
follows:
• Sensors
• Initialize
• Force Calibration (Force calibration)
• Bump Daily
 (Bump test daily)
• Stealth Mode
• Sleep Mode
Sensors
a Caution
To reconfigure the sensor type, physically change the 
sensor prior to entering Tech mode.
When a toxic sensor is physically removed and replaced by another toxic 
sensor, the detector must be reconfigured to recognize the change.
Note
If a sensor is replaced, the detector will classify the sensor as 
overdue for calibration. Calibrate the new sensor immediately.
1. Press H to scroll to Sensors. Press 
C within 20 seconds to confirm and 
access the toxic sensor menu.
2. Press G or H to scroll to Toxic 1 
or Toxic 2 and press C within 
20 seconds to confirm.