For all orders exceeding a value of 100USD shipping is offered for free.

Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.

Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.

High Precision - This detector adopt NDIR(non-dispersive infrared)sensor what is a new type of infrared sensor, It works quickly, stably and wont be affected by temperature or other conditions than outdated Chemosensor. Itâ€s detection accuracy is

(50ppm+5% reading).

24H Record - It has built-in storage for continuous data logging, you can track 24h record trend data of the co2 concentrations, temperature, humidity, and it display the Max min value.

Automatic manual calibration - This instrument has 2 calibration model, manual calibration and automatic calibration. We has calibrated it manually in factory, and it can automatic calibrate during the detection.

If you have any questions, please contact me and wish you a happy life.