Pay in 4 interest-free payments of $11.25 Learn more
Ships within 48 hours · Estimated delivery Jul 30 - Aug 4
dual-frequency
No compass cover is required because of the glass dome construction
Backlit LCD display for low-light visibility
More resistant to handling and UV light
can be placed on a horizontal surface or bulkhead mounted
Teledyne Flir Desktop Hygro-Thermometer Alert Extech RH35 Barometer dual-frequencyDesktop Hygro Thermometer Alert Extech RH35 The Extech RH35 monitors humidity, temperature, and dew point from the previous 24 hours. It then alerts users to indoor mold hazard conditions starting with a frown icon warning if humidity reaches 60% RH. If the RH exceeds 65%, a loud audible alarm and bright flashing red LED will be triggered. The frown icon will also appear if the environment is too dry (<40% RH) where static electricity becomes a
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