Measurement and security 

Eyes and ears cannot be everywhere.

New
Ending item
Smoke detector
Smoke detector, 9V battery power, 20s response time, up to 100m range
New
Ending item
CO detector
CO concentration detector, LCD display, 3 × 1.5V AA battery power
New
Ending item
Gas detector
LPG gas detector (liquified propane-butane), natural gas, town gas, 230V AC power
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