Chúfáng zuòcài yóuyān tài dà, bǎ yānwù bàojǐngqì xiǎng le.
The smoke from cooking set off the smoke detector.
Tips
usage
烟雾报警器 detects smoke; the related 燃气报警器 (ránqì bàojǐngqì, gas alarm) detects natural-gas leaks and is increasingly required in Chinese kitchens. Both 报 (bào, report) + 警 (jǐng, alert/warning) literally make 'alarm.'