Comments: I bought 2 temp sensors.. One for outside and one to monitor the koi pond water temp. The one by the koi pond went bad after the first rain. Sent the unit back to vendor as instructed which was replaced with another unit with the exception of it costing me the postage to send it to pinpoint. The new temp sensor I received.. when it actually transmits to the recorder is 10 degrees off the temperature showing on a regular mercury thermometer. You might want to learn from my experience.

Comments: The design is good, but the functionality is weak. If you turn the receiver off, you have to reset all of the sensors. Plus, the receiver scans all four sensors regardless of how may are actually activated. Additionally, the receiver provides erroneous temperature readings on channels with no sensors activated. There is no way to turn off unused sensor channels.
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<br />However, the sensors are accurate and the receiver works as advertised.
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<br />I am not certain that I would recommend this item to anyone until the sensor scan and power off problems are corrected.

Comments: I bought this unit to monitor the temperature in my koi pond with additional senders for my quarantine tank and hospital tank. This works great, I do not have to go outside to check the temperature but can do it from in the house. I monitor the temperature several times a day to compare the outside ambient temperature with what the tanks are doing. Our outside temperature here can rise and fall as much as 40 degrees or more in a single day. The unit seems very accurate and well worth the money.

Comments: Ordered the thermometer and one additional sensor. After few days one of the sensors malfunctioned - it started to report first 100F then HHH. Sent it to American Marine, received the replacement which acted exactly the same (could be the very same unit). Sent it again and received another replacement. Now I have two sensors sitting next to each other with the readings different by at least 1.5 degree and the difference varies.

Comments: good product works well easy to set up no problems for me

Comments: I bought this because I couldn't find another outdoor wireless thermometer that I liked better. BUT I find the cycling between readouts of the two sensors I own to be problematic. Sometimes the display picks up a blank reading for a third sensor I don't have and it is necessary to turn the display off to correct this. I would recommend to my friends only with this caveat.

Comments: Quality made, very accurate.
<br />Two disappointments though.
<br />The probe cord is not long enough unless you are going to put sensor on a platform right next to aquarium. It will not be long enough for a shelf typical(underneath)on retail tank stands. I had to velcro my sensor to side of my tank.
<br />The probe wire also should have come with a suction cup attached like some of the other digital thermometers.
<br />Other than that an excellent product.

Comments: Great service would recommend a longer probe length (10ft).

Comments: very accurate and well built transmitter assembly, long battery life (AAA batteries)since the transmitter only sends a signal when the temp changes 1/10 of a degree.

Comments: Great purchase.