ECOTEST MKS-05 TERRA Operating Manual page 86

To proceed to the submode of time and date correction, press and hold
the THRESHOLD button until a stripe (1) "moving" across the instantaneous
value indicator appears on the LCD, and the digits of minutes (2) start
blinking (Figure 22).
Figure 22 – LCD of the dosimeter
(the submode of time and date correction – time programming)
85