Apollo MSR-2 with CO2 vs SwitchBot Meter Pro (CO2 Monitor)

Updated April 2026

Data from Amazon and official Apollo Automation and SwitchBot sites.

2026 verdict

Taken as a whole in 2026, SwitchBot Meter Pro (CO2 Monitor) wins this matchup. Its clearest strengths are weather resistance, connectivity, and screen, and it still looks stronger on integrations and alerts. Choose Apollo MSR-2 with CO2 only if price and sensors matters more to you than the broader advantage from SwitchBot Meter Pro (CO2 Monitor). As a general recommendation, SwitchBot Meter Pro (CO2 Monitor) comes out on top.

Apollo MSR-2 with CO2

$56.09

Winner

15% OFF

$69.99

$59.49

Feature	Apollo MSR-2 with CO2	SwitchBot Meter Pro (CO2 Monitor)	Winner
Price	$56.09	$59.49	Apollo MSR-2 with CO2
Weather Resistance	NO	IP65	SwitchBot Meter Pro (CO2 Monitor)
Connectivity	2.4 GHz Wifi	2.4 GHz Wifi, Bluetooth	SwitchBot Meter Pro (CO2 Monitor)
Screen	NO	YES	SwitchBot Meter Pro (CO2 Monitor)
Integrations	Home Assistant	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, IFTTT, Matter	SwitchBot Meter Pro (CO2 Monitor)
Sensors	CO2, Temperature, Atmospheric Pressure, Ambient Light, UV, Occupancy	CO2, Temperature, Humidity	Apollo MSR-2 with CO2
Alerts	Temperature Alerts, Air Quality Alerts	Temperature Alerts, Humidity Alerts, Low Battery Alerts	SwitchBot Meter Pro (CO2 Monitor)

$56.09

Winner

15% OFF

$69.99

$59.49

+ Weather Resistance: IP65
+ Connectivity: 2.4 GHz Wifi, Bluetooth
+ Screen: YES
- Price: $59.49 vs $56.09
- Sensors: CO2, Temperature, Humidity vs CO2, Temperature, Atmospheric Pressure, Ambient Light, UV, Occupancy

Which is better overall: Apollo MSR-2 with CO2 or SwitchBot Meter Pro (CO2 Monitor)?: SwitchBot Meter Pro (CO2 Monitor) has the stronger overall profile in this comparison, especially for weather resistance, connectivity, and screen.
What is the biggest difference between Apollo MSR-2 with CO2 and SwitchBot Meter Pro (CO2 Monitor)?: Price is one of the clearest differences: Apollo MSR-2 with CO2 lists $56.09, while SwitchBot Meter Pro (CO2 Monitor) lists $59.49.
Which one looks better on price?: Apollo MSR-2 with CO2 is listed at $56.09, while SwitchBot Meter Pro (CO2 Monitor) is listed at $59.49. Apollo MSR-2 with CO2 (better spec).
Who should buy Apollo MSR-2 with CO2?: Choose Apollo MSR-2 with CO2 if your priority is price and sensors and that matters more than weather resistance.
Who should buy SwitchBot Meter Pro (CO2 Monitor)?: Choose SwitchBot Meter Pro (CO2 Monitor) if your priority is weather resistance and connectivity and that matters more than price.