Software communication problems can occur due to a few reasons. Please click on the appropriate troubleshooting guide (link) below for assistance. WT Meter – Digital Psychrometer and Portable Thermometer Hygrometer with LCD Monitor,. Extech RH Precision Dual Display Hygro Thermometer Psychrometer. RH Dual Display Hygro-Thermometer Psychrometer. On Sale Extech RH ✅ Engineers on staff. ✅ FAST quotes ✅ We accept POs.

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What are the thread sizes for the pressure transducers for model ? What is the frequency bandwidth of your Sound Level Meters? Items returned for credit must be new, unused, and in the original packaging including any accessories, manuals, and documentation that shipped dxtech the product. Extech has some temperature probes that can measure high temperatures.

Extech RH490 Precision Hygro-Thermometer

EST via overnight service are normally delivered by 4: My meter seems to provide readings that are too high or to low when measuring metal surfaces. What tachometer will best fulfill my application – Photo, Contact, Laser or Strobe? All Extech User’s Guides can be found on the website. What is the correct procedure to make measurements with my light meter? However, breaking the circuit may not be possible. Once your order has prepared for shipment or has extsch, we are unable to change the shipping address.

For no additional charge, Fondriest offers shipment on your account for most popular carriers. Do you sell longer leads for my meter? Once your order has been prepared for shipment and ships, you will receive a Shipment Notification email with carrier and tracking information.


The operation manual for your light meter will provide you with the basic information on how to make light measurements with your meter. The manual will also provide you with diagrams for these connections.

Extech RH Precision Hygro Thermometer Hygrometer | eBay

View our complete Privacy Policy. How do I set my meter up to measure specific 3 phase power applications? If you have questions, please contact our Tech Support team.

Rb490 days are Monday through Friday, excluding federal holidays. Title and risk of loss to all products will pass to you on delivery. This ability extedh known as emissivity and is based upon the material of the object and its surface finish.

Complete the fields below for an instant quote via email. Do you have temperature sensors that are rated to read very high temperatures? Most organic materials and painted or oxidized surfaces have an emissivity factor of 0.

This calibration is valid for one year. Extech has various light meters that are designed to measure the intensity of visible light, white LEDs, white and color red, yellow, green, blue, purple LEDs, and UV sunlight.

The meter can make measurements from a distance, however the accuracy can be affected by multiple factors like light reflections on the target, air temperature and humidity, also the size of the target and how shiny the target is.

The bandwidth measured is The amount of IR energy emitted by an object is proportional to an object’s temperature and its ability to emit energy. Fondriest can ship orders extecy the 50 United States only. Fondriest makes every effort to supply the products you order, but there rh40 be extehc when Fondriest confirms orders and later learns that it cannot supply the products, either at all or in the quantities ordered. Although Fondriest makes every effort to ship your order according to the lead time provided, shipping dates may change due to changes in supply.


Check with the regulatory body you are testing to. Insertion into the wood should be to at least a 0. The thermometer’s optics sense emitted, reflected, and transmitted energy.

RH Precision Hygro-Thermometer | Extech Instruments

To send your meter to be NIST calibrated please contact our return department for a return authorization number and other return information. Do you carry clamp meters specifically made to measure low current? For an rhh490 charge, Fondriest offers this expedited shipping option for most products. Please use the following formulas to calculate the area.

Extech RH490 Precision Hygro Thermometer Hygrometer

Contact Fondriest for earlier overnight delivery options. The operations manual for your meter will contain complete product details as well as specifications and resolution specs for each range.

The 48VFL has a single active output and the 96VFL has 2 active outputs, one main and the other secondary which operates opposite to the eextech output. Please email your request for a calibration procedure to support extech. Extech meters should be calibrated annually. How do I set up and calculate for measuring CFM’s for applicable models? Contact tachometers are used by pressing and holding the tip of the meter against a rotating object.