Just check coupons out (with price alert and history). Do you want to know what the best price is?
Detection method for PM: la-ser scattering, Detection temperature: -10°C~50°C, Display method: 4.3 Inch LCD screen display, Flow range: 180 L/min, Storage temperature: -10°C~60°C, Concentration unit for PM: ug/m3, Relative humidity: 20%~85%, Concentration unit for CO2: PPM, Concentration unit for TVOC: mg/m3, Material:ABS, Charging method: DC5V Micro USB, Item size: 145 * 97.2 * 78mm / 5.7 * 3.8 * 3.1in, Atmospheric pressure: 86Kpa-106Kpa, Package weight: 460g / 1.0lb, Item weight: 235g / 8.3ounce, Detection method for CO2: Infrared (NDIR), Package size: 180 * 170 * 90mm / 7.1 * 6.7 * 3.5in, Battery: 1 * lithium battery / 3000mAh(included), Sampling time: 1.5 seconds, Concentration unit for HCHO: mg/m3, Pixel: 480X270 pixels
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. I couldn’t find any coupon for this product on latest product update.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGherra, BG1cccd6
(there’s a little possibility that old coupon will work)
Price history and price alert
Price history (for all/most countries) for DM72B-wifi Air Quality Detector is here.
Price records source(s): Banggood
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You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).