Topcon RL-SV2S - Height Alert ON;OFF Setting

7. Applied Operation and Setting of Various Functions
46
 Height Alert ON/OFF
C6.2 Height Alert Function(p. 28)
1 Press the key.
2 Press the or key and select Safety Lock ON/OFF (Hl.ALr), and press the key.
3 Press the or key and select ON or OFF, and press the key. Setting is
complete.