Coway is a South Korean home appliance manufacturer based in Seoul, best known outside Korea for its Airmega air purifiers, along with water purifiers and bidets. Its purifiers pair a washable pre-filter with activated carbon and True HEPA media, report air quality through a coloured indicator ring and the IoCare app, and support Amazon Alexa and Google Home. Most Airmega models are AHAM Verifide and Energy Star certified.
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Heiman is a Chinese manufacturer of smart safety and security sensors, including smoke alarms, gas detectors, water leak sensors and door/window contacts. The company produces Zigbee and Z-Wave devices used across many smart home hubs and is a common original equipment supplier for other brands. Heiman focuses on affordable, safety-oriented sensors for home automation.
View HeimanEvery product, compared
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Door & Window SensorsHeimanWindow Door Alarm
$19.98
Motion SensorsHeimanSmart Motion Sensor
$23.99
Motion SensorsHeimanWiFi Smart Motion Sensor
$12.98
SirensHeimanSmart Siren HS2WD series
$79.99
Smoke & CO DetectorsHeimanHS1SA Series Smoke Alarm
5% OFF£16.99£16.14
Smoke & CO DetectorsHeimanMatter Smoke Detector S1-M
$39.99
Smoke & CO DetectorsHeimanSmart CO Alarm
17% OFF$59.99$49.99
Vibration SensorsHeimanSmart Vibration Sensor HS1VS series
$14.90
Water Leak SensorsHeimanSmart Water Leakage Sensor
$19.99
