The following product guides are available for the Guardian GS & GR range:
Guardian air curtain with Signal Pro - Product Guide - July 2022 - https://www.reznor.co.uk/wp-content/uploads/2025/11/D301725-Reznor-Guardian-air-curtain-with-Signal-Pro-sales-brochure-EN-2022-07-Iss-0.pdf
Reznor Product Overview March 2020 - https://www.reznor.co.uk/wp-content/uploads/2023/11/Reznor-Product-Overview-Mar-20.pdf