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973 Dew Point Mirror

RH Systems’ 973 Dew Point Mirror is portable, equipped with an integral measuring head for both spot and continuous measurement of dew/frost point and temperature in air and gas mixtures. The 973 ensures direct and accurate humidity measurement, ready for immediate use, complete with built-in pump, flow meter, pressure sensor, and external temperature probe.
Convenience Of Connect And Go
Truly portable, the 973 is ready when you are, with built-in pump, flow meter, pressure sensor, external temperature probe and PC connectivity for remote data collection. 
Reliably Determine Dew/Frost
Configure the 973 for measurement of dew point, frost point, relative humidity, and other parameters. Our proprietary ForceFrost™ feature ensures reliable differentiation between super-cooled dew and frost.
Easy, Verifiable Calibration
Easily check the 473 system’s stability at any time using the built-in Ice-Test function, providing instant proof of system accuracy and integrity.
Direct and accurate humidity measurement

Laboratory Precision, Field Ready.

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Specifications

Operation

Documents

Warranty

Accessories

Specifications

Specifications

The 973’s specifications are outlined, below

Measuring range:
Frost/Dew Point -50 … +20°C
% RH 5 … 100%
Temperature -50 … +150°C
Accuracy:
    Frost/Dew point ±0.1°C
    Temperature ±0.07°C
Reproducibility:
    Frost/Dew Point ± 0.05°C
    Temperature ± 0.05°C
Thermoelectric Mirror cooling: 3-stage, 80°C depression
Cooling: Air
Display: Active Matrix Color Graphic LCD
Digital I/O: RS-232
Gas couplings: 1/4″ Swagelok
Mirror temperature sensor: PRT-100
Sample gas flow rate: 0.2 … 1.0 l/min
Sample gas circuit: PTFE (Teflon)
Sample gas maximum pressure: 2 bar abs (opt. 12 bar abs)
Operation temperature: -10 … +40°C
Storage temperature: -10 … +40°C
Ambient humidity: Instrument 90% RH max., non condensing
Voltage: 100 … 240 VAC, 50/60 Hz
Power consumption: 200 Watt
Width: 440 mm (600 mm with transport case)
Height: 155 mm (310 mm with transport case
Depth: 410 mm (450 mm with transport case)
Weight: 12 kg (22 kg with transport case)

Operation

Operation

To start using the 973 Dew Point Mirror right away, download the manual here and go to page 3, titled “Getting Started.” There, you’ll find out how to turn the 973 on and off, what you’ll see on the display, navigating menus, and more. We recommend you read through the entire manual to fully understand all of the 973’s ins and outs, but if you just can’t wait, the Getting Started section will, well, get you started in the meantime!

Documents

Documents

Learn more about our 973 Dew Point Mirror:

Warranty

Warranty

RH Systems (RHS) warrants the products it manufactures or distributes to be free of defects in material and workmanship under normal use and service when operated within the specified design limitations for a period of 12 months from date of initial shipment. Under this Warranty, RHS will, at its discretion, repair or replace any component that upon examination by RHS or its duly authorized representatives proves to be defective during the warranty period provided the system is returned to the factory for inspection and repair shipping prepaid. Improper or unauthorized maintenance, storage, repair, or alteration of any kind by personnel other than RHS or its duly authorized representatives may void all warranties. Warranty may also be voided for misuse, neglect, accident, corrosion, and improper installation. This Warranty is exclusive and in lieu of any and all other warranties of merchantability, fitness for a particular purpose, or any other warranty, expressed or implied, and all other liabilities and obligations on the part of RHS. RHS will not be liable for any other claims or damages, either direct, indirect, or consequential arising out of the use of its products.

Accessories

Accessories

The Convenience Of Connect And Go

Truly portable, the 973 is ready when you are, with built-in pump, flow meter, pressure sensor, external temperature probe and PC connectivity for remote data collection.

Reliably Determine Dew/Frost

Configure the 973 for measurement of dew point, frost point, relative humidity, and other parameters. Our proprietary ForceFrost™ feature ensures reliable differentiation between super-cooled dew and frost.

Easy, Verifiable Calibration

Easily check the 473 system’s stability at any time using the built-in Ice-Test function, providing instant proof of system accuracy and integrity.

Let’s Chat

Let's Chat
Joshua Stine
Chief Relationship Engineer

At RH Systems, we’re constantly pushing ourselves towards advancing our products and services for a wide range of clients, setting a new standard for accuracy and paving the way for future breakthroughs.

Customer satisfaction is the foundation of our reputation, so we never take a one-size-fits-all approach. We work with you to understand your needs and provide customized solutions that work seamlessly right from the jump.

Ready to chat with our Sales Team? Send an email to sales@rhs.com and we’ll get right back to you.

Let’s Connect

Fill out the form below and we’ll be in touch soon.

    Frequently Asked Questions

    What are your hours?

    9am – 5pm Arizona Time
    Where are you located?

    1225 West Houston Ave, Gilbert, AZ 85233
    Do you offer virtual or in-person training?
    Yes, please contact sales@rhs.com for a quote.
    What products do you service?
    We service the entire RH Systems line of products, you may find our products here.
    Do you service products not manufactured by RH Systems?
    Yes, please contact sales@rhs.com for more information.
    Are you accredited?

    As a NVLAP accredited laboratory, RH Systems is reassessed to ensure that our quality and practices maintain such standards (NVLAP Laboratory Code 600161-0). The National Institute of Standards and Technology (NIST) administers the National Voluntary Laboratory Accreditation Program (NVLAP), which accredits public and private laboratories based on evaluation of their technical qualifications and competence to carry out specific calibrations or tests. 


    NVLAP provides an unbiased third-party evaluation and recognition of performance. Accreditation signifies that a laboratory has demonstrated compliance with NVLAP management and technical requirements, including quality systems, personnel, accommodation and environment, test and calibration methods, equipment, measurement tractability, sampling, handling of test and calibration items, and test and calibration reports. Learn more here.

    Where can I find the range for each unit?
    On our Product Page, click the specific unit. Then, click on download brochure.

    Brand Warranty

    At RH Systems, we proudly stand behind the quality of our products with a 12-month warranty from the date of shipment. If any part proves defective in material or workmanship under normal use, we’ll repair or replace it—just send it to us prepaid for inspection. To keep your warranty intact, all maintenance or repairs should be handled by RH Systems or an authorized representative. While the warranty doesn’t cover misuse, accidents, unauthorized modifications, or corrosion, you can count on us for expert support and reliable service every step of the way.
    See Our Warranty

    REVIEWS

    “Bob is more interested in the subject matter and the science behind his products than in making a sale. He wants to make sure that a solution will work for us. Beyond their products, RH Systems will continue to innovate and amaze the humidity community with new systems and instruments that will advance the metrological community.”

    Tee Yee Zheng Supertron Sensing

    RH Systems helped me understand the systems better. That makes me ask better questions and ultimately become a better technologist. They show that their customers are clearly everything. From the way they treat us, you can tell that people must absolutely love working there.

    Paul Gomez Sandia National Labs

    “Bob and the staff at RH Systems are the greatest and their undying devotion to supporting the community is greatly appreciated. They are prepping the next generation of professionals in our community for a continuation of support unparalleled in temp and humidity and should be a beacon for all metrology.”

    Joseph Rindone Metrologist at Paladin Metrology Advocates

    “RH Systems goes the extra mile, without fail. And they stand behind what they do. Customer service is a dying art. RH Systems still gives you one-on-one attention and they always pick up the phone. In our industry, we have a lot of red tape. Bob helps us navigate this and wants to take on the challenge of forming a custom solution. He is invested in what his customers need. That speaks volumes.”

    Roger Free Calibration Technician at Haleon

    “RH Systems has created the best frost point generator in the world. The G3 is very fast, has high precision and is still very easy to use. The three separately flow-controlled outputs give you maximum flexibility when connecting measuring devices.”

    Helmut Hager CEO, Techmetrics

    “I’ve never met anyone who wants to do more than what his customers expect than Bob. I respect and admire that philosophy so much! You will never regret doing business with Bob Hardy!”

    Janne' Mummert Business Consultant, JM Consulting
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