Sierra Monitor Corporation T10008 - Manual (Page 13)

OXYGEN DEFICIENCY MONITOR PAGE 11
9. Remote Sensor Option
9.1 Use the remote sensor option to check the confined environment
before entry.
9.2 Plug the probe into the top of the monitor and loop the cable
securely around the belt clip. When the remote probe is plugged
in the internal sensor is disabled and the display reads the
remote probe concentration.
9.3 The remote probe will require 5-10 minutes to stabilize
depending upon the time since last use.
9.4 Calibrate, if necessary, by following the instructions in Section 6
except that the adjusting screw is located in the back of the
remote sensor head.