Easily measure air quality with this industrial specification Industrial Volatile Organic Compounds Sensor from PMD Way. Unlike hobbyist-style modules, these are meant for indoor or outdoor mounting with the included solid enclosure. Use the options menu to select your required interface type of: RS485 4~20mA 0~5V DC or 0~10V DC analog output If you need a larger ppb value, please email us with your exact requirements. Specifications - RS485 Output DC power supply (default) DC 10~30V Maximum power consumption 0.5W Working environment -40°C~+85°C, 0%RH~95%RH TVOC measurement range 0~5000ppb Measurement object Volatile organic compounds TVOC display resolution 1ppb Data refresh time 1s TVOC measurement accuracy ±8%FS+125ppb Specifications - 4~20mA/analog outputs DC power supply (default) DC10-30V Maximum power consumption 0.4w Working temperature and humidity -40°C~+85C, 0%RH~95%RH TVOC measurement range 0~5000ppb Measurement object Volatile organic compounds Data refresh time 2s TVOC measurement accuracy ±8%FS±125ppb Output signal 4~20mA, 0~5v, 0~10V optional Installation method Wall-mounted installation Voltage output: output resistance≤250ohm Load capacity current output: ≤600ohm Dimensions: Don't forget to check out our full range of sensors if this doesn't meet your needs. And as always, all orders receive free delivery. And remember ... if you: can't find what you need not sure what to order want a bulk deal need technical support or just want to have a talk ... Please email us via [email protected]. To keep up to date with new products, news, tutorials and more - we're on x, Facebook, Instagram, threads, reddit, and instructables.