Extech MO270-X Wireless Moisture Sensor<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Detachable pin/pinless sensors transmit data to the receiver</li><li>Can be used up to 65ft (20m) from the receiver</li><li>Receiver can record up to 40 remote sensors simultaneously</li></ul></div><img src="http://ecx.images-amazon.com/images/I/316wM4toA-L.jpg" noproxy>