Limited Modular Approval. This device is authorized for installation in Conductix-Wampfler devices, and may not be marketed to the general public. The antenna(s) used for this transmitter must not transmit simultaneously with any other antenna or transmitter, except in accordance with FCC multi- transmitter product procedures. The use of other antenna requires a Class II Permissive Change filing. End -users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance and transmitter operating conditions for complying with FCC multi-transmitter product procedures and RF exposure requirements.