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USB Temperature & Humidity Sensor with Datalogging Software


Item# RH-USB

 This item is available for quick shipping
Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $194.78
5-9 $185.04
10-24 $181.15
25-49 $173.35
50-99 $169.46
100+ $165.56

In stock

Lead Time ( If not in Stock): 5 Days

USB Temperature & Humidity Sensor with Datalogging Software RH-USB RH-USB
  • USB Probe for Humidity and Temperature
  • Free Software Converts Your PC into a Humidity and Temperature Meter, Data Logger or Chart Recorder
  • Accurate to ±3% Relative Humidity, ±1°C (±1.8°F) Temperature
  • 316 SS Housing and Removable Stainless Steel Sensor Filter
  • Suited for Wall or Duct Mounting
5 Year Warranty

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Measurement Type
Data Interface

Product Specs

The RH-USB relative humidity/ temperature sensor provides a standard USB output that directly feeds relative humidity and temperature directly into your PC. The free software displays,datalogs, and graphs the measurements. The compact design is ideal for wall or duct mounting. Each unit is factory calibrated to provide excellent sensitivity, fast response, and stability. The unit features a simple installation with a direct USB connection. The free user software converts your PC into both a humidity and temperature meter, chart recorder or data logger. The design features a 316 SS NEMA 4 (IP66) housing. A mounting kit is also available that allows for wall or duct mounting.

    Range: -17 to 49ºC (1 to 120ºF)
    Accuracy: ±1ºC (±1.8°F)
Relative Humidity:
    Range: 2 to 98% RH
    Accuracy: ±3% RH (@ 15 to 90% RH)
Repeatability: ±1% RH
PC Interface: USB
USB Cable: Integral to sensor, 2 m (6') (shielded) Type A plug
Software (Included): Requires Windows® 2000, XP, or Vista operating system
Housing: 316 stainless steel
Dimensions: 138 L x 16 mm D (5.5 x 0.625")
Weight: 67 g (0.18 lbs)

Rated 5 out of 5 by from Exactly what was needed! We have had this unit installed and working with a MS Access database that reads the Temp / RH on a timer and prints it on the calibration certificate. Working perfectly so far!
Date published: 2016-11-14
Rated 4 out of 5 by from Easy Temp/Humidity Logging I bought this temperature/humidity probe for our physical testing lab and attached it to the USB port of a PC attached to a test instrument running in lab ambient conditions. The probe was easy to install after downloading Omega's software and logs our testing conditions but I had to get help running the software. Omega's data logging team was able to help.
Date published: 2016-11-07
Rated 5 out of 5 by from Great product for awesome price! just bought this product a week ago and couldn't be more pleased. The usb and software makes using this device so easy and just requires downloading the software. The data is very very easy to copy and paste to excel. The software's plotting program is not the best but is good for a quick view of whats going on. 100% would recommend and I already thinking about how I can buy more sensors from omega... seriously so easy to use.
Date published: 2016-05-24
  • y_2021, m_9, d_20, h_20
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  • cp_1, bvpage1
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  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getReviews, 8ms

Does this unit have or even require CE approval for deployment in the EU?

Asked by: LeahM
Thank you for your inquiry. This unit does not carry any CE marking and cannot be sold in the EU.
Answered by: Application Engineer JB
Date published: 2020-09-23

Can this probe recover from condensation?

Asked by: NickBuner
Hi NickBuner. If the condensation dries clean before any corrosion builds up, it may survive. Suggest to dry quickly in warm dry air. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2021-02-09

do you have examples of using the telnet commands in visual basic? I have VB code that reads USB via Rs232 converter and want to automate a process. Do you have example code not using telnet?

Asked by: Dann
Hello, thank you for your inquiry. Unfortunately that example code is not available. Here is the command reference for that unit: ftp://ftp.omega.com/public/DASGroup/products/RH-USB/RH_USB%20Command%20Reference.pdf If you need further assistance please send a note to das@omega.com for more details.
Answered by: application engineer je
Date published: 2021-09-08
  • y_2021, m_9, d_20, h_20CST
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  • loc_en_US, sid_RH-USB, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getContent, 40ms
Wall/duct mounting kit
4 In Stock

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