Review on π Coreel Portable 4-Gas Detector: Sound Light Vibration Multi-Gas Monitor Meter with Rechargeable LCD Screen Backlight - Ready to Useβ¦ by Brian Manfre
O2 sensor not calibrated
20.3% O2 saturation returned from box, outdoors with a breeze. Fresh air 20.8 - 20.9 depending on humidity. The photo is shown next to an oxygen-only device calibrated in the USA. DO NOT BUY.
- Pleasing
- Almost never
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