- New 4-IN-1 Thermometer and Hygrometer for PM2.5 & AQI only as it considered the most hazardous pollutant to human health due to its tiny sizes can be inhaled and absorbed.
- Temtop 3rd generation laser particle sensor combined with a unique particle swarm optimization algorithm makes particle measurement more accurate and stable.
- Touch screen and backlight give clear readings on particle pollutants and their relative AQI level.
- Switchable temperature unit Fahrenheit and Celsius
- Built-in 1800mAh lithium battery that runs up to 8 hours after full cycle charging.
- Dimensions: 5.9 x 3.6 x 3.1 in.
- Display: 4.6" touch screen
- Battery capacity: 1800mAh
- Battery life: 8h on a full charge
- Battery voltage: 3.7VDC
- Input voltage/current: DC5V; 1A
- Operating environment: 0-50℃(32-122℉); 0-90%RH
- Atmospheric pressure: 1 atm standard atmosphere
- Temperature measuring range: 0-50℃(32-122℉)
- Accuracy: ±1℃(±1.8℉)
- Humidity measuring range: 0-90%RH
- Accuracy: ±5%RH
- PM2.5 Sensor: Laser particulate matter sensor
- Measuring range: 0-999ug/m³
- Resolution: 0.01 ug/m³(0-9.99ug/m³); 0.1 ug/m³(10-99.9ug/m³); 1 ug/m³(100-999ug/m³);
- Accuracy: ±10 ug/m³(0~100 ug/m³) ; ±10%(100~500 ug/m³)
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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply contact us over online chat or email. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
Free Standard shipping in US: The products will be shipped out by USPS if you choose standard shipping at check out. Generally, it takes about 1~2 days to process the products and then 3-5 business days for delivery.
USPS Priority Mail, 2-Days Delivery: If you are urgent to receive the products, please contact us over online chat or call (+1)408-844-4070 directly. Our customer service will help you.
Worldwide Shipping: We can ship to virtually any address in the world. Generally, it takes about 1~3 business days to process the products and then 5~10 working days for delivery. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.