Aranet, a brand of SAF Tehnika in Latvia, makes wireless sensors best known for the Aranet4 CO2 monitor. Its devices use long-range, low-power radio to track CO2, temperature, humidity and pressure, with long battery life and an E-ink display. Aranet is widely used in offices, schools and homes for reliable, accurate CO2 monitoring.
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TaiwanSynology is a Taiwanese company founded in 2000 that specializes in network attached storage, backup appliances and surveillance recorders. Its DiskStation Manager (DSM) operating system is the most established in the category, covering Btrfs snapshots, cloud sync, and a Surveillance Station package that turns a NAS into a local network video recorder for IP cameras. Models with Intel or AMD processors run Container Manager, which is the usual way people self-host Home Assistant and similar services at home.
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NASSynologyDS124
7% OFF$149.99$138.99
NASSynologyDS1525+
$897.25
NASSynologyDS1823xs+
$2049.99
NASSynologyDS1825+
$1249.99
NASSynologyDS223
6% OFF$304.99$285.99
NASSynologyDS223j
$209.99
NASSynologyDS225+
$364.99
NASSynologyDS2422+
$1999.99
NASSynologyDS3622xs+
$3449.99
NASSynologyDS423
$399.99
NASSynologyDS425+
$599.99
NASSynologyDS725+
$547.11
NASSynologyDS925+
$705.83