The Grove - HCHO Sensor is a semiconductor VOC gas sensor.
Its design is based on the WSP2110 whose conductivity changes with the concentration of VOC gas in air. Through the circuit, the conductivity can be converted to output signal that corresponding to the gas concentration. This sensor can detect the gas whose concentration is up to 1 ppm. It’s suitable for detecting formaldehyde, benzene, toluene and other volatile components. This product can be used to detect harmful gas in the home environment.
The sensor value only reflects the approximated trend of gas concentration in a permissible error range, it DOES NOT represent the exact gas concentration. The detection of certain components in the air usually requires a more precise and costly instrument, which cannot be done with a single gas sensor. If your project is aimed at obtaining the gas concentration at a very precise level, then we do not recommend this gas sensor.
At Scientia Book House our goal is to offer you the best shipping options, no matter where you live. Every day, we deliver to hundreds of customers across the world, ensuring that we provide the very highest levels of responsiveness to you at all times.
The time frame for order delivery is divided into two parts:
Order verification, tailoring, quality check and packaging. All orders are processed & packaged within 24-48 hours after the order is placed.
This refers to the time it takes for items to be shipped from our warehouse to the destination.
Standard Shipping: 3-5 business days
Expedited Shipping: 3 business days
Priority shipping: 1 business day
Weekend delivery is not available for all locations. An item leaves the warehouse on Friday, may not arrive until Monday even if you choose Priority Shipping.International delivery:
Only express shipping is available for international delivery. usually takes about 3-7 business days. After processing and leaving the warehouse, items usually take between 2-3 days to arrive at their destination but can take slightly longer if the destination country requires additional customs processing for the receiver.
We ship with UPS and DHL Express to other countries.