ThermoPro Indoor Outdoor Thermometer Wireless, 500 ft Outside Thermometer with Cold-Resistant Sensor, Outdoor Thermometers for Patio Waterproof with 3.3″ LCD Display, Backlit Outdoor Temperature Gauge

Easy to set up way to monitor inside and outside temperature
This is handy as it can be, easy to mount the outside unit and use the inside unit to monitor indoor and outdoor temperatures and humidity. Mine is across the house and through 4 walls and it works fine. Love it.

THERMPRO OUTDOOR THERMOMETER
WORKS GREAT. IT’S A THERM PRO NOT MUCH ELSE COMPARES

Accurate with good display, good transmission and max-min feature
I was surprised how good this unit is after a month’s use. The only feature I’m not sure of yet and which could affect future review is battery life, but so far it is much better than the Oregon Science unit it has replaced in that:• the sensor transmits easily from outside one end of the house to the room completely at the other end and through metal siding; the last unit could not do that• While initially I had the sensor indoors right next to the receiving unit and the indoor and outdoor temps differed by a few degrees, I found this was from handling the sensor. The difference went away with time. Outdoors, the sensor sends a temperature which is within one half degree of my expensive and accurate Davis Vantage View weather station. The two devices are in someone different places in the yard, one in sun the other not, but on cloudy, calm days when the readings should be the same, they are• The contrast on the display makes it very easy to read. The display unit is relatively small but the digits completely fill the whole screen and are readable from across the room• The backlight works very well with a tap in the center top of the display• The max-min feature is not explained well in the manual but works this way: you reset the max-min by holding that button for 5 seconds, then there is another button that gives you the choice of showing the max-min temps from the last time you did a reset or the max-min temps within 24 hours of that reset. So if you reset at 11:58 PM and use the 24 hour choice it gives you the max-min since the last 11:58 PM and then starts all over for the next 11:58 PM. It counts 24 hours internally. There is no clock. If you choose the “all time” setting instead of 24 hours, the max-min never resets and you will see the max-min since the last time you reset which could have been a month ago. The unit only operates in one of the max-min modes at a time. If you set it to “all time” you cannot display the 24 hour value.• The only”con” I would register is that there is no beep or other indication that the max-min reset has been successful. You can check to see if the max-min are both the current temp when you do the reset, but a beep would be nice.

Precaución al tomar las medidas con los aparatos en la mano o alguna fuente de calor-frio o humedad cercana a cada aparato, pues la medición se basa en una pequeña succión de aire de los alrededores, la temperatura de la mano puede alterar la medición mientras se le manipula.

I am using these temperature units on my RV. The remote is mounted externally away from rain and wind when driving. It tells me the most important aspects, temperature and humidity, that I feel is required. I can mow determine if I need to put the AC on ir just open windows and vents, based on the differences between inside and outside air.I ran these two units side by side in our home’s kitchen for a few weeks. The two units were mostly identical or only 1/10 different. To try this test you need to have them right next to each other. Even 6 inches apart there is a slight difference in air movement in the kitchen. I put good quality alkaline leak proof batteries in each unit. Hopefully I get a year or so use out of them.I love the large display with the two readings. In normal room lighting the display is easily read. The touch sensor at the bottom is good and sensitive. Only a light touch and the back light comes on.I am super happy with this product.6 months later: It looks like the outside unit now has the batteries flat. The battery symbol was showing on the display for both in and outside units. Today I noticed there is no data from the outside unit. That is six months with very good quality alkaline batteries. I am a bit dissapointed about only six months out of the batteries. The outside unit it cable tied under the van at the back of the electric step. Oh well, lay on my back and shimmy under the van to get at the unit………..maybe I will reconsider where I put it, seeing it looks like every six months the batteries need to be changed. I will still give 5 stars. They are very good units.