Bests & Worsts Reviews from Amazon

This wireless thermometer works extremely well and is easy to set up - but you absolutely must follow the directions exactly. Range is excellent - but just make sure that some large object such as a metal shed or a large oak tree is not in line-of-sight between any of the transmitters and the receiver. I am using 3 of these temp sensors with the 915 MHz receiver. One sensor came with the receiver, and I just purchased two more, since the receiver can display up to three different temperatures from three sensors. However be advised that if you carry one or more of these sensors out of range and the receiver loses track of it, you absolutely must take the batteries out of all three sensors and out of the receiver and re-initialize all of them. This is not a difficult step, since I did it several times while playing around with the sensors to see how much range they had - which resulted in the receiver losing track of one of them. When you first see the instruction booklet that comes with the receiver, it looks daunting, but not to worry, since only a tiny part of it is in English, with all the rest in other languages. Once all the temp sensors are initialized, then it takes only a few seconds to set the clock. I read in other reviews that some buyers had problems getting their receiver to respond to some sensors, but that is because the buyers failed to properly re-initialize their units. Also be advised that if you buy a display unit that receives transmissions at 915 MHz, then you absolutely must buy sensors that also transmit at 915 MHz. Several of the sensors that are sold by Amazon look alike, but not all of them use 915 MHz, so carefully read the tech specs to make sure that both the transmitter and the receiver operate at 915 MHz.