Dew Point

0560 6053 605-H1 Humidity Stick with Dew Point by Testo

The thermohygrmeter you can bend. Small, compact and accurate. The long-term stable sensor guarantees correct measurement results even after years.

• Dewpoint calculation from -20 to +50 °Ctd
• Long-term stable Testo humidity sensor
• Ideal for measurements in ducts
• Display can be angled for easy readout of measurement values
• Air moisture, air temperature and dew point

0555 6742 Dew Point Transmitter (1/2 NPT) by Testo

The testo 6740 was especilally developed for trace humidity measurement in compressed or dry air (e. g. granulate dryers). Thanks to a special adjustment, optimum accuracy in the trace humidity range has been achieved. The result of the development of the testo 6740 is a measuring range of -45 °C_td to +30 °C_td and excellent accuracy.

For the display of the relevant trace humidity parameters, a freely scalable analog output is available, optionally with a switch contact plug for MAX monitoring. In addition to this, the testo 6740 stands out thanks to its compact and userfriendly design, such as the rotatability of the housing by 350° for the optimum positioning of the display.

• Measurement of dewpoints in the range from -45 °C_td to +30 °C
• Testo polymer humidity sensor with high accuracy and longterm stability
• Convenient operation via the display menu
• Analog output 4 to 20 mA (2-wire) and optional alarm plug with 2 integrated switch outputs
• Compact design with rotatable housing by 350° for optimum positioning of display
• Display with operating menu (optional)
• Trace humidity adjustment without reference measuring instrument possible on site with accessory (2-point adjustment device)

Measuring Range: -30 to +50 °C tpd
Measuring Range: 0 to +100 %RH

4021-DPX RAM 4021 Respiratory Air Monitor, Carbon Monoxide (CO) and Dew Point by GfG

The RAM 4021 AutoCal® series is the unit of choice where specific and accurate measurement of carbon monoxide, oxygen or dew-point levels are required. Designed to meet OSHA requirements for monitoring of Grade D respirable air, this unit is equipped with a reliable electrochemical sensor that accurately indicates the level of carbon monoxide on an illuminated liquid crystal display. Adding versatility, this unit offers optional oxygen or dew point sensors for applications where detection or measurement is needed.

Calibration and maintenance are simple with our innovative AutoCal® system. Additional features including alarm relay contacts, user adjustable alarm point, low flow alarm indicator and many more make this unit an intelligent choice. The RAM 4021 is available in four models, the 4021 (CO), 4021-1 (CO and O2), 4021-DPX (CO and dew point levels) and 4021-PR (CO and additional relay to signal power loss to monitor, complies with newest NFPA regulation). All models may be purchased with or without airline filter systems

Respiratory air specifications

All GfG Instrumentation RAM Instruments satisfy the requirements of OSHA rule 29 CFR 1910.134 (d) (2) (ii) for carbon monoxide monitoring. They will also monitor Grade E air, generally specified for breathing air in cylinders (SCBA).

Wall mounted filter panel option

The 25, 50 and 100 CFM panels filter out dangerous toxins from supplied air sources and ensure clean, breathable air. The threestage filter system efficiently removes particulates, oil vapors and hydrocarbons from an air supply. After filtration, the regulator sets the pressure for the respiratory equipment and the manifold assembly provides multiple outlets for airline hose quick connections. The model 8025 panel includes two user female quick connect outlets; the 8050 includes four, and the 8100 includes eight. A 1/2" FPT connection is standard on all 50 and 100 CFM panels, and a 3/8" FPT connection is standard on all 25 CFM panels.

Features

• Continuous compressed air CO monitor
• Integrated dew point measurement
• Robust easy-to-operate design

Features

• RAM 4021 Monitor
• Carbon monoxide (CO) sensor
• Other sensors (as specified)
• Manual

4021-DP RAM 4021 Respiratory Air Monitor, Dew Point by GfG

The RAM 4021 AutoCal® series is the unit of choice where specific and accurate measurement of carbon monoxide, oxygen or dew-point levels are required. Designed to meet OSHA requirements for monitoring of Grade D respirable air, this unit is equipped with a reliable electrochemical sensor that accurately indicates the level of carbon monoxide on an illuminated liquid crystal display. Adding versatility, this unit offers optional oxygen or dew point sensors for applications where detection or measurement is needed.

Calibration and maintenance are simple with our innovative AutoCal® system. Additional features including alarm relay contacts, user adjustable alarm point, low flow alarm indicator and many more make this unit an intelligent choice. The RAM 4021 is available in four models, the 4021 (CO), 4021-1 (CO and O2), 4021-DPX (CO and dew point levels) and 4021-PR (CO and additional relay to signal power loss to monitor, complies with newest NFPA regulation). All models may be purchased with or without airline filter systems

Respiratory air specifications

All GfG Instrumentation RAM Instruments satisfy the requirements of OSHA rule 29 CFR 1910.134 (d) (2) (ii) for carbon monoxide monitoring. They will also monitor Grade E air, generally specified for breathing air in cylinders (SCBA).

Wall mounted filter panel option

The 25, 50 and 100 CFM panels filter out dangerous toxins from supplied air sources and ensure clean, breathable air. The threestage filter system efficiently removes particulates, oil vapors and hydrocarbons from an air supply. After filtration, the regulator sets the pressure for the respiratory equipment and the manifold assembly provides multiple outlets for airline hose quick connections. The model 8025 panel includes two user female quick connect outlets; the 8050 includes four, and the 8100 includes eight. A 1/2" FPT connection is standard on all 50 and 100 CFM panels, and a 3/8" FPT connection is standard on all 25 CFM panels.

Features

• Continuous compressed air CO monitor
• Integrated dew point measurement
• Robust easy-to-operate design

Features

• RAM 4021 Monitor
• Carbon monoxide (CO) sensor
• Other sensors (as specified)
• Manual

4100-DP GMA 4100-DP Dew Point Monitor by GfG

The GMA 4100-DP continuously provides information on the measured dew point level, exceeded alarm thresholds and its operational status. As soon as the dew point exceeds one of the three pre-set levels, the GMA 4100-DP gives a warning by means of the LED display, the console mounted horn/strobe, and controls the relevant alarm relays. In addition to this, the GMA 4100-DP provides the measurement value as an analog output signal for further evaluation. The GMA 4100-DP is easy to operate and maintenance-free. The dew point sensor is self calibrating and lasts for years. Should unexpected failures or system faults occur, the comprehensive failure recognition allows a quick and specific service.

Alarm points

Each alarm can be adjusted separately. Relay chatter is eliminated with the adjustable alarm delay. The alarm point values can be freely adjusted using the keypads on the controller.

Alarm relays

The controller provides four voltage-free relays for the three alarms and one fault warning. The relays may be used to control additional alarm devices like lights or horns.

Features

• Dew point value readings on a 3-digit display
• Menu display
• 3 adjustable alarm thresholds (alarms must be +1 or higher)
• Peak value memory
• Adjustable relay functions: NC or NO contact
• Alarm hystereses prevents "flickering" of relays
• 4 20 mA analog output signal

Additional features

The 4100 control panel stores peak values and offers an additional 4-20 mA output.

Standard Accessories

• GMA 41B single channel controller
• Manual

90080-04 Traceable Remote-Probe Thermohygrometer with Dew Point and Calibration by Digi-Sense

Unit simultaneously displays humidity or dew point and temperature. One of the newest and fastest humidity sensors ever developed displays full-range humidity changes in 5-30 seconds. It records wide humidity variations on a second-to-second basis. Monitor labs, clean rooms, food processing, and all humidity-sensitive manufacturing areas with this high-resolution unit. Relative humidity resolution is 0.01%, accuracy is ±3% RH, and range is 10.00 to 95.00% RH. Dew Point is a calculated measurement, resolution is 0.01°, accuracy is sum accuracy of humidity and temperature. Range is -13.50 to 120.1°F and -25.30 to 48.90°C. Temperature resolution is 0.01°, accuracy is ±1°C, and range is 32.00 to 122.0°F and 0.00 to 50.00°C.

Memory recalls minimum/maximum readings. HOLD button freezes display for reading later. Data logger captures 1000 readings manually at the push of a button or automatically when set between 1 to 3600 seconds. Computer output allows unit to be connected to a computer for down loading data logger results or constant monitoring. Jumbo-size display is 1-3/8-inch-high. Case is impact-resistant ABS plastic.

Traceable® Products have an individually-numbered Traceable® Certificate provided with each unit, that assures accuracy from our ISO/IEC 17025:2017(1750.01) calibration laboratory accredited by A2LA. It indicates traceability of measurements to the SI units through NIST or other recognized national measurement institutes (NMI) that are signatories to the CIPM Mutual Recognition Agreement. Each product goes through an intense vetting process before it can carry the Traceable name, thus saving you both time and money by not having to calibrate separately.

• Includes NIST-Traceable certificate from our A2LA accredited (1750.01) calibration laboratory

Includes

Probe (2/3-inch diameter x 8 inches length), 40-inch cable, 9-volt alkaline battery, and NIST-traceable calibration certificate with data.

Measuring Range: -60 to +50 °C tpd
Measuring Range: 0 to +100%RH

ARH5 Psychrometer Accessory Head by Fieldpiece

To assist HVACR professionals in getting the proper measurements, Fieldpiece engineered this in-duct psychrometer head to take measurements in the duct where they are supposed to be taken -- near the evaporator! So HVACR professionals can trust the results for tests like temperature splits, target evaporator exit temperature, target superheat, and CheckMe!® because measurements are taken without the interference of outside air temp or leaks in the duct work.

Plus, the ARH5 can make hustling from condenser, to attic, and back again to take indoor wet bulb and charge a system, a thing of the past! When attached to a wireless transmitter, ARH5 measurements can be sent wirelessly to any Fieldpiece wireless meter (HG3, LT17AW, EH4W), and SMAN4 Wireless Digital Manifold from anywhere on the job site. So results like indoor wet bulb, can be read in real-time on your wireless meter from up to 100' away.

Like all Fieldpiece products, the ARH5 accessory head was engineered specifically to put the right tools in the hands of HVACR professionals. For even more convenience and time savings, Fieldpiece designed the 38" telescoping probe with laser etching so techs know the sensor is in the correct location, and is facing in the proper direction. With the quick-response sensor it's a snap to complete target superheat, and take target evaporator exit temperature tests.

Designed specifically for HVACR professionals, the ARH5 InDuct Psychrometer is a great tool to properly charge fixed restrictor systems. More than 70% of A/C units are improperly charged, and therefore running inefficiently, but with the ARH5 it's easier to ensure units are running at their maximum efficiency.

• Measures temperature and %RH
• Calculates wet bulb and dew point
• Slim 38" telescoping probe
• Fast response time
• Depth and direction indicators
• Hands-free testing with stabilizing cone and magnetic hanger
• Can send wireless measurements from up to 100' away
• Target superheat and target evaporator exit temp with HG System Analyzers

Includes

• In-Duct Psychrometer Accessory Head - ARH5
• Telescoping Precision Thermistor Probe
• Stabilizing Cone - RCONE

98766-88 Traceable Relative Humidity Meter with Dew Point and Calibration by Digi-Sense

This pocket-sized thermohygrometer measures full-range relative humidity, temperature from -4 to 122°F (-20 to 50°C), and calculates dew point. Compact design features an electronic capacitance polymer film sensor - not affected by condensation.

Quickly recall minimum and maximum RH and temperature values, and freeze data readings with the press of a button. The dual-line display simultaneously shows humidity and either current or dew point temperature. Unit turns off automatically after 20 minutes of non-use to conserve battery life.

Traceable® Products have an individually-numbered Traceable® Certificate provided with each unit, that assures accuracy from our ISO/IEC 17025:2017(1750.01) calibration laboratory accredited by A2LA. It indicates traceability of measurements to the SI units through NIST or other recognized national measurement institutes (NMI) that are signatories to the CIPM Mutual Recognition Agreement. Each product goes through an intense vetting process before it can carry the Traceable name, thus saving you both time and money by not having to calibrate separately.

• Includes NIST-Traceable certificate from our A2LA accredited (1750.01) calibration laboratory
• Full-range response time less than 1 minute
• Sensor is not affected by condensation - measure up to 100% RH

Includes

Two AAA batteries, probe cover, and NIST-traceable calibration certificate with data.

0560 2605 03 605i Thermohygrometer Smart Probe 350 ft Bluetooth range by Testo

The testo 605i Smart Probe thermo-hygrometer is a humidity and temperature measuring instrument that quickly and accurately measures relative humidity, dew point, and temperature in rooms, ducts, registers, and environmental boxes/chambers. Users can read the measurements using the testo Smart Probes App installed on their smart device. Smart Probes can be used individually or combined with other Smart Probes to create measuring solutions for most HVAC/R applications. Great for setup and diagnostics of large and small HVAC/R systems!

The testo 605i works on smart devices with either Android or Apple operating systems.

The testo Smart Probes App is a powerful and easy-touse tool. It allows you to remotely read measurements from up to six (6) Smart Probes and easily document/report the results. Automatic calculations make it a snap!

All measurement data is displayed as instrument readings, tables, or graphs. The measurements can be quickly saved as PDF or Excel files. The App creates custom reports which can be saved and/or shared by email. All your data can be stored and retrieved saving you hours of time consuming paperwork!

• Quickly and accurately measures relative humidity and temperature in rooms, ducts, and chambers
• Automatically calculates dew point & wet bulb temperature
• Probe now foldable to 90°
• Bluetooth range of up to 350 feet
• Small diameter probe is ideal for in-duct measurements
• Tough, accurate, and easy-to-use
• For all HVAC/R technicians and contractors

0555 6743 Dew Point Transmitter (with display; G1/2) by Testo

The testo 6740 was especilally developed for trace humidity measurement in compressed or dry air (e. g. granulate dryers). Thanks to a special adjustment, optimum accuracy in the trace humidity range has been achieved. The result of the development of the testo 6740 is a measuring range of -45 °C_td to +30 °C_td and excellent accuracy.

For the display of the relevant trace humidity parameters, a freely scalable analog output is available, optionally with a switch contact plug for MAX monitoring. In addition to this, the testo 6740 stands out thanks to its compact and userfriendly design, such as the rotatability of the housing by 350° for the optimum positioning of the display.

• Measurement of dewpoints in the range from -45 °C_td to +30 °C
• Testo polymer humidity sensor with high accuracy and longterm stability
• Convenient operation via the display menu
• Analog output 4 to 20 mA (2-wire) and optional alarm plug with 2 integrated switch outputs
• Compact design with rotatable housing by 350° for optimum positioning of display
• Display with operating menu (optional)
• Trace humidity adjustment without reference measuring instrument possible on site with accessory (2-point adjustment device)

37803-83 Traceable® Digital Thermohygrometer with Dew Point and Calibration by Digi-Sense

The meter warns you of environmental conditions that are out of a desired range with an audible alarm and bright red LED indicator. Features include a super-large, triple display for relative humidity, temperature, and dew point; min/max with reset function; and switchable °F/°C units.

Traceable® products are calibrated to NIST-traceable standards and ready to use as soon as you receive it. Each product goes through an intense vetting process before it can carry the Traceable name, and it includes NIST-traceable certification. This means that a 17025-accredited calibration test lab has confirmed that the product meets or exceeds all stated specifications, saving you both time and money by not having to calibrate separately.

NIST-traceable calibration also helps you meet quality standards and regulatory compliance for ISO, FDA, cGMP, VFC, CAP, CLIA and Joint Commission requirements.

• Get accurate, reliable measurements with included NIST-traceable calibration
• Monitors relative humidity, temperature, and dew point
• Sound and light alarm activates when humidity level exceeds three presets

Includes

Built-in desktop stand, wall-mounting bracket and hardware, NIST-traceable calibration certificate with data, and two AA batteries.

90080-03 Traceable® Digital Thermohygrometer with Dew Point, Wet-Bulb, and Calibration by Digi-Sense

This thermohygrometer monitors temperature, humidity, dew-point, and wet-bulb. Displays current conditions along with minimum, and maximum readings. Settable high/low alarm for all four readings (dew-point, wet-bulb, humidity, temperature) may be set in 0.1 increments, and will sound for one minute and red LED will flash until readings return to non-alarm condition.

Traceable® products are calibrated to NIST-traceable standards and ready to use as soon as you receive it. Each product goes through an intense vetting process before it can carry the Traceable name, and it includes NIST-traceable certification. This means that a 17025-accredited calibration test lab has confirmed that the product meets or exceeds all stated specifications, saving you both time and money by not having to calibrate separately.

NIST-traceable calibration also helps you meet quality standards and regulatory compliance for ISO, FDA, cGMP, VFC, CAP, CLIA and Joint Commission requirements.

• Get accurate, reliable measurements with included NIST-traceable calibration
• Adjustable stand allows for wall mounting or desktop placement
• Can be switched from Fahrenheit to Celsius

Includes

NIST-traceable calibration certificate with data and one AA battery

0555 6744 Dew Point Transmitter (with display; 1/2 NPT) by Testo

The testo 6740 was especilally developed for trace humidity measurement in compressed or dry air (e. g. granulate dryers). Thanks to a special adjustment, optimum accuracy in the trace humidity range has been achieved. The result of the development of the testo 6740 is a measuring range of -45 °C_td to +30 °C_td and excellent accuracy.

For the display of the relevant trace humidity parameters, a freely scalable analog output is available, optionally with a switch contact plug for MAX monitoring. In addition to this, the testo 6740 stands out thanks to its compact and userfriendly design, such as the rotatability of the housing by 350° for the optimum positioning of the display.

• Measurement of dewpoints in the range from -45 °C_td to +30 °C
• Testo polymer humidity sensor with high accuracy and longterm stability
• Convenient operation via the display menu
• Analog output 4 to 20 mA (2-wire) and optional alarm plug with 2 integrated switch outputs
• Compact design with rotatable housing by 350° for optimum positioning of display
• Display with operating menu (optional)
• Trace humidity adjustment without reference measuring instrument possible on site with accessory (2-point adjustment device)

0555 6741 Dew Point Transmitter (G1/2) by Testo

The testo 6740 was especilally developed for trace humidity measurement in compressed or dry air (e. g. granulate dryers). Thanks to a special adjustment, optimum accuracy in the trace humidity range has been achieved. The result of the development of the testo 6740 is a measuring range of -45 °C_td to +30 °C_td and excellent accuracy.

For the display of the relevant trace humidity parameters, a freely scalable analog output is available, optionally with a switch contact plug for MAX monitoring. In addition to this, the testo 6740 stands out thanks to its compact and userfriendly design, such as the rotatability of the housing by 350° for the optimum positioning of the display.

• Measurement of dewpoints in the range from -45 °C_td to +30 °C
• Testo polymer humidity sensor with high accuracy and longterm stability
• Convenient operation via the display menu
• Analog output 4 to 20 mA (2-wire) and optional alarm plug with 2 integrated switch outputs
• Compact design with rotatable housing by 350° for optimum positioning of display
• Display with operating menu (optional)
• Trace humidity adjustment without reference measuring instrument possible on site with accessory (2-point adjustment device)