Agreto hour meters are suitable for all types of machine. Depending on the version, counting is by vibration/movement or by sensor. The VibroCounter II is for all machines generates vibrations during his operation.
The 202 model is designed to enable accurate and precise measurements of ozone ideal for use in field deployments in remote areas, in situations requiring low weight/small size/low power consumption, and where accurate and precise FEM-quality measurements are desired.
The Model 108-L provides accurate measurements of ozone in air over a wide dynamic range extending from a few parts-per-billion by volume (ppb) to an upper limit of 100 parts-per-million (ppm) based on the well-established technique of absorption of ultraviolet light at 254 nm.