The MultiRAE Lite is a great Multiple Gas Monitor and includes a PID for VOC measurements. It has many class leading features and benefits. It can simultaneously detect up to six threats if properly configured. It is intuitive and easy to operate. Is a rugged/robust design. Can be powered either by a rechargeable battery or an alkaline backup adapter. With no dedicated sensor slots it is the most configurable monitor in its class. it has a datalogger capable of storing over six months continuous run times worth of data at a line a minute with 5 sensors installed. The PID is a 10.6eV with a 0 - 1000ppm range and 1ppm resolution.