Omega Engineering, Inc.    Stamford, CT 06907
May 01, 2013 With iTHX-SD Transmitter, user can monitor and record temperature, relative humidity, and dew point over Ethernet network or Internet with no special software required. Unit serves Active Web Pages to display real-time readings, display charts of temperature and humidity, or log data in standard data formats for use in spreadsheet or data acquisition program such as Excel or Visual Basic. Using 2 GB SD Flash Memory card, iTHX-SD can store up to 7 years of readings taken at 10 sec intervals.

E+E Elektronik GmbH    Engerwitzdorf A-4209  Austria
Mar 14, 2013 Compliant with ATEX Directives for intrinsically safe equipment, Model EE300Ex can be employed in both hazardous and explosive gas and dust areas in zones 0/20. Sensor element ensures precise measurements in 0–100% RH and -40 to 180°C ranges, while 2-part stainless steel housing facilitates installation and permits rapid replacement of measurement unit. Designed using 2-conductor technology, transmitter delivers measured values on 2 analog outputs with 4–20 mA.

Dwyer Instruments, Inc.    Michigan City, IN 46361
Mar 14, 2013 Combining CO2, RH, and temperature in one device, Series CDTR minimizes number of sensors mounted on wall or in duct. Transmitters use single-beam, dual-wavelength NDIR sensor to automatically correct measurement in both occupied and unoccupied buildings against light source aging effects. Universal outputs for both carbon dioxide and relative humidity allow users to select transmitter output to be 4–20 mA, 0–5 Vdc, or 0–10 Vdc to work with virtually any building management controller.

Vaisala Oyj      Finland
Feb 04, 2013 Operating with minimal maintenance, INTERCAP® Series HMDW80 includes basic transmitters for walls and ventilation ducts as well as IP65-classified transmitters for wash-down areas and other humid spaces. Series also contains transmitters that measure temperature only as well as transmitters with optional display. In addition to direct output parameters, units provide calculated humidity parameters of dew point, wet bulb, and enthalpy. 

Vaisala Oyj      Finland
Dec 14, 2012 Using external or internal sensors, HUMICAP® HMT140 Wireless Humidity and Temperature Transmitter allows secure monitoring, alarming, and reporting of temperature, RH, CO2, differential pressure, contacts, and other critical parameters in Life Science applications. Two-channel IP65-rated system has temperature range of -20 to +60°C with display and -40°C to +60°C without display. On-board memory provides point-of-measurement recording by sensors so that data is protected from loss.

Predictive Sensor Technology    Lynchburg, OH 45142
Feb 21, 2012 Based on iStatus(TM) software, which checks each data transmission against user-configured alarm thresholds, PST-THD Wireless Environmental Temperature, Humidity, and Dew Point Sensor/Transmitter alerts user via e-mail or text when targets are reached. Battery-powered system uses 900 MHz wireless protocol to ensure that other communications will not be affected. With open field range up to 1,200 ft, sensor/transmitter measure temperature from -40 to 255°F and RH from 0-100%.

Vaisala Oyj      Finland
Jan 26, 2012 Designed for indoor environments requiring measurement accuracy and stability, HUMICAP® HMW90 Series measures humidity from 0-100% and temperature from 23-131°F. Units offer variety of options, including special scalings and calculated dew point and mixing ratio parameters. For maintenance, transmitters feature instructive display, which can be hidden behind solid cover. Front cover slides down so calibration and adjustment interfaces can be accessed without disturbing measurements.

Newport Electronics, Inc.    Santa Ana, CA 92704
Jan 17, 2012 Available for analog voltage and current, temperature from digital sensors and dual thermocouples, humidity, and barometric pressure, wSeries has weatherproof, polycarbonate NEMA4/IP65 housing and battery or ac power options. Users can view charts and graphs as well as monitor and record readings over Ethernet network or Internet from any computer, tablet, or smart phone via Web browser. Also, alarms can be set and to notify individuals/groups via email or text messages.

Omega Engineering, Inc.    Stamford, CT 06907
May 20, 2011 Featuring stand-alone battery-powered design, Model UWRH-2-NEMA transmits relative humidity, ambient temperature, signal strength, and battery status to host receiver up to 400 ft away in real-time. Transmit sample rate is programmable from 2 seconds to 2 minutes. Included software converts PC into multi-channel chart recorder or data logger so readings can be saved and later printed or exported to spread sheet file.

Vaisala, Inc.    Woburn, MA 01801 1008
Mar 22, 2011 Usable indoors/outdoors, HUMICAP® HMT120 and HMT130 have smooth enclosure finish that is resistant to dust and cleaning agents. Products can be wall-mounted or used with remote probe for installation in ceilings, chambers, or air ducts. To ensure accurate and stable measurement data in cleanrooms and HVAC applications, measurement probes are fully interchangeable. Calibration does not need to be done onsite, and probes can be replaced without removing and re-adjusting transmitter.

Rotronic Instrument Corp.    Hauppauge, NY 11788
Jan 13, 2011 Available in space, wall, or duct mount configurations, HygroFlex3 employs %RH sensor with 2% RH accuracy and AirChip 3000 technology. Space mount version also supports optional display. Also offered as hygrostat/thermostat, product features range of analog output choices and can be configured with dew point output. Uses include measurement in applications such as HVAC and BAS environments as well as pharmaceutical clean rooms, warehouses, and manufacturing areas.

Process Measurement & Controls, Inc.    Danbury, CT 06810
Sep 03, 2010 Contained within rugged housing measuring less than 1.1 in. diameter, Model SF52 features dew-point temperature range of -40 to +140. Communication is via 4-20 mA or voltage signal for either dew-point or absolute humidity with less than 3.6°F accuracy and less than 1.8°F annual stability. Transmitter's ½ in. NPT port contains flush filter disc to minimize flow disturbance.

Michell Instruments    Rowley, MA 01969
Sep 03, 2010 Supplied in weatherproof aluminum die cast housing with analog and digital RS485 outputs, wall-mount WM291 has measuring ranges of 0-100% RH and -22 to +160°F with respective accuracies of less than ±2% RH and ±0.7°F. Stability is less than ±1% RH/year, accommodating long-term measurement applications, and integrated interchangeable HYGROSMART module facilitates sensor replacement to minimize maintenance concerns over downtime stemming from recalibration.

CAS Data Loggers    Chesterland, OH 44026
Aug 16, 2010 Powered by external 12 V supply with internal NiMH back-up battery that can provide up to 100 hours of operation, Eltek GD47 collects temperature, humidity, and CO2 measurements and sends them wirelessly to receiver for storage, display, and alarming. Equipped with NDIR sensor, unit measures CO2 from 0-5,000 ppm, temperature from -20 to +65°C, and humidity from 0-100% RH. Wireless range can be several hundred feet to almost 1 mile, depending on transmitter frequency and environment.

E+E Elektronik GmbH    Engerwitzdorf A-4209  Austria
Aug 16, 2010 Suitable for demanding operating conditions and outdoor applications, IP65-rated EE240 Series enables up to 3 intelligent probes to be connected to each transmitter. Each probe operates independently, can be hot swapped, and allows sensing head to be placed up to 10 m away from transmitter. Measured values can be read directly off display on transmitter or remotely via web browser from any PC in network. Base station includes 4 analog outputs for connection to system controller.

Rotronic Instrument Corp.    Hauppauge, NY 11788
May 21, 2010 Based on HygroClip2 probe fitted with AirChip3000 technology, HygroFlex5 Series provides compensation of humidity and temperature at 30,000 reference points, recording of 2,000 data points, and calculation of current dew point. If sensor accuracy declines significantly, AirChip3000 recognizes problem and will issue alarm. Available in duct-mounted and wall-mounted versions, transmitters enable any psychometric calculation to be output as analog signal.

Dwyer Instruments, Inc.    Michigan City, IN 46361
May 07, 2010 Featuring polycarbonate enclosure with vented design, wall mount Series RHP-W is available with integral LCD or remote display that can be ordered for building balancing or LEED validation. LCD indicates ambient temperature and either humidity or dew point, which are measured using capacitive polymer sensor that recovers from 100% saturation. Humidity and dew point can have current or voltage output, while optional temperature output can be current, voltage, RTD, or thermistor.

E Instruments International LLC    Langhorne, PA 19047
Apr 19, 2010 Capable of measuring from 0-100% RH and -40 to +356°F, TH300 includes functions for relative and absolute humidity, dew point, wet and dry temperature, and enthalpy. It can display 1-4 parameters simultaneously, and features Smart-Pro system interchangeable probes (PC or Stainless Steel). Other features include 2 output 4-20 mA or 0-10 V (4 wires), RS 232, 2 RCR relays 6 A/230 Vac, external transmitter inputs, and 2 visual (dual color LED) and audible (buzzer) alarms.

Rotronic AG      Switzerland
Apr 07, 2010 Suited for fixed-installation applications, HygroFlex8 Series is based on AirChip3000 technology and communicates with all HygroClip2 probe types. All-in-one units measure humidity from 0-100% RH and overall temperature from -100 to 200°C with accuracy of 0.8% RH and 0.1°C. Each transmitter has 4 analog outputs and 4 alarm relays, programmable to any probe input and any probe parameter. With data logging function, transmitters can record up to 20,000 data points with date and time stamp.

E Instruments International LLC    Langhorne, PA 19047
Nov 04, 2009 Suited for pharmaceutical and industrial applications, Model TH200 includes functions for relative and absolute humidity, dew point, wet and dry temperature, and enthalpy. Unit offers measuring ranges of 0-100% RH and -40 to +356°F with accuracy as tight as ±1.5% RH and ±0.3% Rdg ±0.45°F with resolution of 0.1% RH and 0.1°F/°C. Enclosed in IP65 ABS housing with or without 2-line backlit display, it provides simultaneous display of 2 parameters and includes visual and audible alarms.