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Pressure transmitter. The series 662 can work with pressures up to 138 bar (2000 psi). Designed to measure and transmit pressures of liquids, gases or vapors in demanding, corrosive environments, this instrument has a housing of die-cast aluminum with epoxy polyester coating, rated NEMA 4X. The transmitter's 4-20 mA output signal, with ±0.25% accuracy FS, provides turndown to as low as 33.3% of the full scale range. Dwyer Instruments Inc, PO Box 373, 102 Indiana Hwy 212, Michigan City, IN 46361-0373. 219-879-8000. Circle 640.

Power supplies. The VLC series features one, two and three outputs, copper heat sinks, high efficiency, overvoltage and short circuit protection, fixed frequency, and a compact size of 3 x 5 inches. Each unit is burned in at elevated temperature and is 100% tested. These power supplies are ideal for disk drives, peripherals, test equipment and telecommunications. A wide range of output voltages are available. Converter Concepts, 100 Industrial Pkwy, Pardeeville, WI 53954. 608-429-3000. Circle 646.

Bayonet LED lamps. The energy saving Lumina Lamps are available in ultra bright blue, green, ultra bright pure green, hi-efficiency red, ultra red, orange, yellow, amber and warm white. The number of LEDs per lamp varies from 1 to 7 depending upon the model. The lamps have a life of 11 or more years under normal conditions. These lamps consume less than a half watt for most voltages and generate almost no heat. Lumina Electronics Inc, 23344 El Toro Rd, #317, Lake Forest, CA 92630. 949-588-8591. Circle 644.

Illuminated rocker switches. The K3 series of snap-in panel mounting rockers feature front panel re-lamping capability without disturbing the dusttight and watertight seal. There is a selection of illuminated and printed legends, thru-panel drain option, and switching capability from low level through 20 amps. The switches have a minimum 100,000 cycle mechanical life and 25,000 cycle electrical life at their full rated load. Otto Engineering Inc, 2 E Main St, Carpentersville, IL 60110. 847-428-7171. Circle 650.

Mass flow controllers. Side-Trak meters and controllers deliver a typical point accuracy of <1% across the entire flow range. In a 2-year test the maximum deviation (drift) of the platinum sensor was less than 0.5%. The sensor is straight, has a large internal diameter and provides access ports to facilitate cleaning. Side-Trak also incorporates a machined laminar flow bypass, which is easily removed with the inlet fitting for fast cleaning. Sierra Instruments Inc, 5 Harris Ct, Monterey, CA 93940. 800-866-0200. Circle 642.