Temperature sensor measures temperature from -50.0°C to +125.0°C, with a 0.1°C resolution.</p> <p><strong>No batteries required – Connect direct to any heating device</strong><br /> As it is connected directly to either 230VAC or 24VDC, no batteries are required.</p> <p><strong>Hidden thermostat - clean walls</strong><br /> There is no need to have big room thermostat on the wall, because the temperature set point is set through a Z-Wave network.</p><br> <font color="#FF8040"> item also available in: <br> 908.4 MHz - USA/Canada, México, Chile <br> 921,40 MHz - Australia, Brazil, New Zealand <br> <a href="http://www.eurox10.com/ContactForm.htm">Contact for details</a> on minimal quantities and deadlines for these frequencies </font>">