Displays "0" or remains blank until gas is detected.
with a detector that is explicitly certified for your region. jkd-512com user manual
80dB audible siren with a flashing red LED light. Displays "0" or remains blank until gas is detected
Due to reported failures in meeting UL 217 and EN 50291-1 standards, safety authorities recommend replacing the JKD-512COM safety authorities recommend replacing the JKD-512COM