Ambient WeatherF007TH Wireless Thermo-Hygrometer for WS-07 Weather Stations

Have the main bar station, these are additional sensors to distribute in my humidifier to control humidity and temperature

Works as advertised. when calibrating, all sensors were within 2% and 1 degree. Alarm function is hit and miss - alarms randomly going off during the night.

worked great as soon as i put the batteries in

Second additional purchase. Expensive and unreliable. Buy Something else.

It is accurate and easy to connect but don't sit it in direct sun! I put it on top of a fence post temporarily to connect it and when it did it read 107. Entirely my fault and now it reads similar to other in the area so accuracy is no problem. It simply connects by restarting the little box on the wifi and it showed right up.

I liked the initial kit enough to buy another 5 transmitters to max out the units capacity to a total of 8. (each transmitter sends out both temperature and relative humidity readings). I found the transmitters to all be reasonably consistent and accurate when calibrated with a trusted thermometer and a salt chamber for verifying the RH readings. You can even fine tune each reading on the central display to compensate for any calibration errors if necessary. Mostly I wanted the transmitters to monitor the performance of a multi chambered root cellar, but I also use it for monitoring the efficiency of my HRV system for interior air quality. I live in an ICF house with a lot of concrete walls blocking the signal from the transmitter to the central display. I did finally find a location in the house that could get a signal from all the transmitters. Dont expect much more than 30 feet distance if the signal has to pass through concrete walls and floors. The transmitters work fine from inside a PVC pipe but not at all from inside a metal pipe. Note: only three transmitter displays are fixed. The fourth readout on the central display can be set to continuously scroll through the other 5 transmitters. Each transmitter takes two batteries, so factor in that cost when buying multiple extra transmitters. I think it is a pretty good value for those looking to remotely monitor multiple locations for temperature and relative humidity.