Ozone levels are shown on the easy-to-read multicolor graphical display. LED readout changes color as ozone levels increase: green indicates a safe level, yellow is caution level, and red is the danger level. Both models feature a heated metal oxide semiconductor (HMOS) sensor for excellent sensitivity and quick response time. Compact monitors measure only 2-3/8"W x 3-¼"H x 1-3/8"D.

Fixed Ozone Monitor with Alarm has a range of 0.02 to 0.14 ppm (0.2 to 0.30 or more ppm with an external data readout). The audio alarm is triggered at 0.1 ppm (danger level). Features include an output for datalogging and a connection for external equipment control.

Portable Ozone Monitor has a range of 0.02 to 0.14 ppm. Permanently install for on-site use or carry it with you to detect leaks throughout your plant. Features a rechargeable eight hour NiMH battery and an AC adapter/recharger.