ProtiSen(TM) monitors perform linear sensing of hydrogen in air from 0 to 40,000 ppm (4% volume in air) with 200 ppm resolution and fast start-up/response time. The environmental operating range is -40 to +80 degrees Celsius and 0 to 99% R.H. The devices can be powered from 5 to 24VDC and consume about 750mW. Output signal options include 0-3VDC proportional, voltage-encoded state (normal, warning, alarm, fault), TTL, and open drain (2A at 60V). The devices are compatible with Neodym's PK-Port(TM) single-wire digital signaling protocol for PC-based real time monitoring and data logging.

ProtiSen(TM) monitors employ catalytic sensing elements with in-line VOC filters and feature good long-term stability, increased tolerance of silicone-based contaminants, and immunity from sensor damage in the event of hydrogen overexposure from massive gas leaks or during aggressive testing.

ProtiSen(TM) monitors are housed in anodized aluminum enclosures, measure 51mm by 51mm by 19mm, and weigh about 50g. The devices are manufactured in Canada by Neodym and cost approximately USD150. Ordering information and specifications are available at Neodym's website: www.neodymsystems.com.

Neodym Technologies Inc. specializes in gas measurement systems for the Alternative Energy industry. Neodym's customers include major international corporations, the military, governments, universities, and research laboratories. The Company was established in 1999 and is listed on the TSX Venture Exchange.