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PM2.5 O₃ Ozon TVOC Luftqualitätstester USB-Instrument 2,8-Zoll-LCD-Bildschirm Kohlendioxid Formaldehyd Staub Dunstmesser
US$118.99

Q: Hello, do you have the accuracy of the device?

gefragt von BG401155535 auf 2021-01-05 13:56:31

sgal Nosign of accuracy; resolution on display can be seen on photos; O3: 9.999 ppm; PM2.5: 999 microgramm per m3; TVOC 9.999 mg per m3

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PM2.5 O₃ Ozon TVOC Luftqualitätstester USB-Instrument 2,8-Zoll-LCD-Bildschirm Kohlendioxid Formaldehyd Staub Dunstmesser
US$118.99

Q: what's the range of the Ozone meter? Do I need to calibrate and how often? Can I calibrate device myself?

gefragt von BG937183824 auf 2020-08-11 23:26:56

sgal 9.999ppm; it calibrates itself; only temperature can be set

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NanoVNA Vector Network Analyzer 50KHz - 900MHz Digitales LCD Display HF VHF UHF Antennenanalysator Stehende Welle USB STROMVERSORGUNG
US$56.00 US$75.00

Q: Is this a clone or made by the original manufacturer?

gefragt von b4535493 auf 2019-09-11 22:29:50

sgal NanoVNAopen source, without akku

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