RS-232 Transmit and Receive Comammand Summary
1.Control letter should use Capital Letter.
2.If you write you own program, the host computer must send the "A" letter to activate data transmission.
3.If you should stop data transmission the host computer must send the "B" letter to extend battery life.
4.Communication Parameters Baud rate: 1200
Parity check: EVEN
Data bits: 7
Stop bits: 1
"A" Activate data transmission "B" Stop data transmission "C" °C/°F Key
"D" HOLD Key
"E" TIMER
"H" Exit record mode "I" REL Key
"J" LIMITS Key
"K" REL RECALL Key "L" Hi/Lo RECALL Key "M" " 
" Key
"P" Turn off power of meter
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