SAF deals

Nothing from SAF is priced below its own normal range right now — these are the ones we watch.

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$189.00

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Comparison

Aranet4 HOME vs Qingping Air Monitor 2: Which Fits Your Room-Monitoring Routine?

Aranet4 HOME is the more natural fit for a portable CO₂-focused readout. Qingping Air Monitor 2 is the broader desk display, with seven readings, a touchscreen and Wi-Fi app access; plan to keep it connected to USB for routine use.

Read the decision guide →

1 product tracked

SAF

Aranet4 Indoor Air Quality Monitor, Wireless CO2 Detector for Home, Office | 4-year battery life, NDIR sensor. Tracks carbon dioxide, temperature, humidity, and pressure in real time. E-ink screen

$189.00

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Size: 70x70x24 mm / 2.76x2.76x0.94 inches

Price checked Nov 6, 2026, 9:34 AM PST