This Schneider Electric Merten System M 2A thermostat insert for ZigBee allows you to control the indoor temperature. This product is compatible with 2A relays for hydronic systems (hydronic radiators, hydronic UFH, circulators and motorized valves). The communication port protocol of this device is Zigbee 3.0, integrated into the Wiser Home System. The power consumption in standby state (not switching a load) must be less than 0.5W. The dimensions are (H) 52mm x (W) 52mm x (D) 28mm. This product acts as a room temperature controller for hydronic or electrical applications. This device also acts as heating or cooling for hydronic underfloor systems. Smart thermostat connection or stand-alone integrated with the Merten Design M, easy to set up with a capacitive touch display. The universal input allows you to save energy when combined with a proximity sensor when there is no one in the room. This device is compatible with gas boilers, heat pumps or oil boilers. This device is easy to install and configure using the local display steps. Remote access and easy scheduling with the Wiser Home app are available. The device can be installed in a CE60 wall box. The product must be powered with an input power of 230VAC single phase +/- 10% at 50-60Hz. It achieves IP30 protection. Its transmission frequency is 2.4GHz, and the range is 30m in free space. This device complies with CE and CB certifications. Quick installation solution, no internet connection required. Since the device is 2A, there is a voltage-free output compatible with NC and NO valves or other loads up to 2A resistive. Solution for Merten customers who need connectivity and remote control as part of the Wiser Home system.