B03 Professional HCHO/TVOC Tester Formaldehyde Tester with Tri-Color Indicator Light Air Quality Monitor Gas Detector Gas Analyzer
Instructions for Use
|Green light is on||Indicates good air quality;|
|Yellow light is on||Indicates that the detected gas exceeds the standard, and it is recommended to open the window for ventilation;|
|Red light is on||Indicates that the detected gas is seriously exceeding the standard, and it is recommended to carry out comprehensive air treatment indoors;|
|Red light is flashing||Indicates that the detected gas has exceeded the detection range and it is recommended to leave the environment immediately.|
|TVOC concentration <0.1mg/m³;||Green light is on|
|TVOC concentration ≥0.1mg/m³ and <0.3mg/m³,||Yellow light is on|
|TVOC concentration ≥0.3mg/m³ and <3.888mg/m³,||Red light is on|
|TVOC concentration ≥3.888mg/m³||Red light is flashing|
|Formaldehyde concentration <0.1mg/m³;||Green light is on|
|Formaldehyde concentration ≥0.1mg/m³ and <0.3mg/m³,||Yellow light is on|
|Formaldehyde concentration ≥0.3mg/m³ and <2.0mg/m³,||Red light is on|
|Formaldehyde concentration ≥2.0mg/m³|| Red light is flashing
(1) FREE Shipping 10 - 15 business days, (2) Standard Shipping 7 - 12 business days.
Shipping and Delivery Estimates
We ship in-stock orders as soon as possible. This is often within two business days, but there are situations where it may take longer. All estimates are based on business days.
(1) The shipping time mentioned above refers to the estimated time of business days that the shipment will take after an order has been shipped.
(2) Business days do not include Saturday/Sunday and any public holidays.
(3) These estimates are based on normal circumstances and are not a guarantee of delivery times.
(4) We are not responsible for the failures or delays in delivery resulting from any force majeure event, such as natural disaster, bad weather, war, customs issues, and any other event beyond our direct control.
Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can't offer you a refund or exchange. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
for more information please visit our Refunds & Returns Policy page.