Bresser Wireless HCHO + VOC Sensor

Whether as a standalone air quality sensor or extension for your existing weather station - with the high-quality HCHO/VOC sensor with LCD screen, you can keep the air clean Important: This outdoor sensor is only compatible with Bresser weather stations with item numbers 7003700 and 7003240, you can find the item number on your device or packaging Wireless sensor for formaldehyde measurement (HCHO) with integrated display (37 x 21 mm) for displaying HCHO value and VOC content (volatile organic compounds); 4 channels selectable; range: up to 150 m Power supply for the HCHO/VOC meter via USB port and/or 3 x AA batteries, 1.2 V (USB cable and batteries included) Dimensions: 82 x 120.5 x 43 mm, Display size: 37 x 21 mm; Package Content: HCHO/VOC sensor, 3 AA batteries, USB cable, instructions; Weather station not included