Sensortechnics Inc.    Dublin, CA 94568
Mar 27, 2013 Offering flow ranges from 0 to 200 or ±200 sccm and 0 to 1 or ±1 slpm, WBI series includes unidirectional and bidirectional sensors that achieve accuracy of ±2.0% of reading +0.25% FSO. Linear output signal is available via digital I²C bus interface; analog output is available upon request. Utilizing sensitive thermal measuring principle to detect air and gas flows, sensors operate from 2.7–5.5 V supply and are sized to enable space-saving and flexible PCB mounting.

Honeywell Sensing and Control    Golden Valley, MN 55422
Dec 13, 2012 Integrating bypass to main flow channel of sensor, digital versions of Zephyr™ HAF Series are designed for direct implementation into main flow channel and provide airflow ranges of 0–20 SLPM (standard liters per minute) and 0–200 SLPM. Total Error Band is ±4% of reading, and accuracy is rated at ±3.5% of reading. Configurable and customizable with multiple interface and package options, flow ranges, and custom calibration, sensors feature interfaces that facilitate integration.

Dwyer Instruments, Inc.    Michigan City, IN 46361
Aug 09, 2012 Suited for use with air velocity gauges, transmitters, and switches, Series MAFS utilizes evenly distributed total and static pressure measuring points to deliver accurate measurement of flows in ducts. Blade profile provides optimal performance with minimal flow disruption in air stream. Air flow measuring probe can be completely installed from outside of round or circular ducts. Available from 4-48 in., Series MAFS is useful in HVAC industry.

POSIFA Microsystems Inc    San Jose, CA 95112
Jun 05, 2012 Replacing membrane-cavity structure with solid-state thermal isolation structure on sensor die, PMF2000 Series eliminates field failures associated with pressure shock, humidity, and contamination. Using internal microcontroller, sensors cover ranges from 10-2,000 sccm for both unidirectional and bidirectional flow, and provide 1-5 Vdc linear output with better than 2% FS accuracy. Units are fully calibrated and compensated over temperature range of 0-50°C.

Honeywell International, Inc.    Morristown, NJ 07960
Mar 07, 2012 Providing flow ranges from ±50 to ±750 SCCM, Zephyr(TM) Analog and Digital Airflow Sensors offer Total Error Band as low as ±2.25% FSS, allowing accurate airflow measurement. Stability minimizes errors due to thermal effects and null shift, providing accurate readings over time and often eliminating calibration after PCB mount. Potential applications include fuel cells, gas meters, and HVAC filters as well as hospital diagnostics, patient monitoring, and ventilators.

POSIFA Microsystems Inc    San Jose, CA 95112
Feb 28, 2012 As drop-in, pin-compatible upgrade to Honeywell AWM3000 series, PMFc3000 series incorporates MEMS and microelectronics technologies and replaces membrane-cavity structure with solid-state thermal isolation process. This promotes reliability by eliminating field failures associated with pressure shock and contamination. While meeting same packaging and calibration specifications of AWM3000, PMFc3000 series offers initial output tolerance to less than 2% FS.

Climatecraft    Oklahoma City, OK 73101
Feb 06, 2012 MatrixMonitor(TM) gauges airflow in arrays with 3-98 fans, with max airflow of 300,000 cfm per array. Offering alternative to fan inlet and piezometric flow monitors, this digital instrument consists of sensors and internal wiring for each fan connected to embedded processor. Solution operates on 100 W power supply and generates one airflow signal for entire fan array. With dual fan array capability, product can operate as stand-alone system or integrate with building automation system.

TRIATEK    Norcross, GA 30093
Jun 13, 2011 LITE monitor series includes HMS1650-LITE surface-mounted fume hood monitors that are accurate to within ±2 fpm, and FMS1650-LITE room pressure monitors with accuracy to ±0.5% of full span. Room pressure monitors measure to 0.0001 in. WC and are offered in either surface mounted or stainless steel mounted versions. Both devices feature digital sensors, programmable touchscreens, as well as visual and audible alarm to alert when readings fall outside allowable limits.

Sensirion Inc.    Westlake Village, CA 91361
Dec 07, 2010 With 0-3,500 Pa measuring range, fully calibrated and temperature-compensated SDP2108-R offers 8 msec response time and analog output signal with 0-4 V range. Root square output enables measurements at minimal differential pressure (DP) levels, while simultaneously allowing coverage wide dynamic measurement range. Sensor utilizes thermal flow measurement and exhibits freedom from zero point drift.

Degree Controls Inc.    Milford, NH 03055
Nov 18, 2010 Supplied in 1.0 x 0.25 x 0.5 in. package with 0.1 in. pitch, F600 enables electronics manufacturers to anticipate thermal rise before it occurs by directly monitoring airflow at critical board locations. Board level sensor, used for continuous monitoring of airflow in small locations, has air velocity range of 100-1,000 fpm and offers output to sound alarm or reduce system power if loss of air velocity occurs. Communication to sensor is accomplished via I²C or UART interface.

Honeywell International, Inc.    Morristown, NJ 07960
Nov 17, 2010 Suited for customers that are replacing legacy analog parts or who prefer to operate with analog sensors, Zephyr(TM) HAF Series measures mass flow of air and other non-corrosive gases over specified full scale flow span and temperature range. Units provide 2.5% accuracy with maximum stability, minimizing errors due to thermal effects and null shift to provide accuracy over time. With 3.3 Vdc voltage option, units are suited for battery-powered and portable applications.

Degree Controls Inc.    Milford, NH 03055
Sep 23, 2010 Cambridge AccuSense(TM) ATM-2400 accepts up to 36 airflow and temperature sensors, which can be used simultaneously. Plug-and-play, USB-based system provides ability to measure air velocity over 3 pre-calibrated ranges from 30-4,000 fpm and air temperature with UAS1000 Series sensors. During test, system can also monitor surface temperature via UTS1000 Series Thermocouples and relative humidity via UHS sensors.

Greenheck    Schofield, WI 54476 0410
Sep 03, 2010 Combining accurate airflow measuring station and low leakage damper into one compact assembly, Air Measuring Damper series measures and regulates airflow volumes to a target set-point. It includes 4 models; AMD-23 with 3 V blade control damper, AMD-33 incorporating fabricated airfoil blade control damper, AMD-42 made of extruded airfoil blade control damper, and AMD-42V having vertical extruded airfoil blade control damper. Series is compatible with various controllers.

Dwyer Instruments, Inc.    Michigan City, IN 46361
Jul 27, 2010 Operating from 9-24 Vdc line power or 9 V battery, DigiMag® Series DM-1200 is field-programmable for pressure, air velocity, or flow operations. Units feature full-scale accuracy of 1% on ranges down to 2 in. wc and 2% accuracy in range of 1-0.25 in. wc. Housed in NEMA 4X enclosure, gauges have added feature for filter applications where set point can be input. When filter is dirty, display will blink, alerting user that maintenance is needed.

Degree Controls Inc.    Milford, NH 03055
May 26, 2010 Utilizing constant deltaT architecture, AccuSense F333 measures air velocity from 40-2,000 fpm while maintaining better than ±10% accuracy across 15 to 60°C range with 2% or better repeatability. User-configurable, linear voltage output of 0-5 or 0-10 V facilitates integration, while UART or I²C interface enables specific memory location access. Offering dedicated open drain alarm pin, RoHS-compliant sensor is aimed at ducting applications, fume hoods, and biological safety cabinets.

Critical Environment Technologies    Delta, BC V4G1M3  Canada
May 18, 2010 With ability to sense dust, particulates, cigarette smoke, pollen, and fibers, YESDUST runs on internal rechargeable NiMh batteries providing approximately 5 hr of run time, or supplied wall adapter, providing continuous operation. Product is designed to be used with multi-sensor indoor air quality (IAQ) monitors. Measured readings are shown on LCD display and data logged to internal flash card of IAQ monitors.

Carlo GAVAZZI Automation Components    Buffalo Grove, IL 60089
Apr 30, 2010 Able to measure indoor environmental parameters such as CO2, humidity, temperature, and air velocity, CE-approved and RoHS-compliant CGES Series can help increase supply of fresh air into building, improve indoor air quality, and contribute to compliance with ASHRAE 62-1989. Each sensor operates on 24 Vac/Vdc and can be mounted in walls or ducts. Output options include 0-10 V, 4-20 mA, and switching, while auto-calibration ensures proper tuning for continuous, worry-free operation.

Honeywell International, Inc.    Morristown, NJ 07960
Apr 20, 2010 Delivering airflow reading accurate to 2.5%, Zephyr(TM) HAF Series features digital output and is customizable to suit specific requirements. Design, in addition to being optimized for sensitivity, offers minimal susceptibility to thermal effects and null shift. Along with linear output, products feature ASIC-based I²C digital output that facilitates integration to MPUs/MCUs. Low voltage option and power supply requirements allow use in portable applications.

Labconco Corp.    Kansas City, MO 64132 2696
Apr 19, 2010 Permanently-installed on Labconco fume hoods and other enclosures, Guardian 500 continuously monitors airflow and alerts user of abnormal airflow conditions. Setpoints can be selected and calibrated between 30 and 250 fpm. Green light indicates normal flow conditions, while red light is activated along with audible alarm when flow conditions lower than setpoint are encountered. If configured, amber Sash High light flashes when sash is raised above safe working opening.

Dwyer Instruments, Inc.    Michigan City, IN 46361
Jan 21, 2010 Series 670 Fume Hood Monitor continuously senses air flow through face of fume hood, ensuring safe levels of fresh air are exhausting potentially hazardous fumes. Featuring hot-wire sensor to detect low flows common on fume hoods, it also includes LED safe and alarm status indicators, audible alarm with temporary or permanent horn silence, relay alarm output, and input for night set-back. Mounting bracket, 2 in. of tubing, and 120 Vac power adapter are included.