


Milesight EM500 CO2 Sensor (4 in 1)
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Milesight EM500 CO2 Sensor (4 in 1)Milesight EM500 CO2 Sensor (4 in 1) EM500 CO2 is designed for measuring gaseous carbon dioxide (CO2) concentration in harsh environments. It is useful in the application where knowing CO2 level is important as a greenhouse, building ventilation, fruit and vegetable storage. Besides, it also supports temperature, humidity and barometric pressure measurement. 4 in 1 (CO2, barometric pressure, humidity, temperature) Measuring ranges from 400ppm to
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- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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★★★★★ 5
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Good value
Good watch for a low price.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Had to look hard to find it again
My husband loves this watch. This is his second one, and it was hard to find this one, exactly like the last one - which lasted for years. Good overall watch, easy to read, reliable.
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Reviewed in the United States on March 3, 2022
★★★★★ 2
POOR PACKAGING
Disappointed that the watch arrived only in plastic bag without bubble wrap envelope. The plastic box was broken and the paper box old , I bought it for my father as a gift, and I had to buy other box because it seemed like used. Good: it arrived on time.
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BE CAREFUL WITH PACKAGING!!!
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Reviewed in the United States on June 21, 2024
★★★★★ 1
Don't buy its a waste.
Very cheap watch. Sharp edges and adjustment of the band although easy to do, the parts are very flimsy. Don't wase your money.
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Reviewed in the United States on March 17, 2025