Johnson Controls GRD10-1R Wire Guard Els PW 17895 This refers to the High/Low

This refers to the High/Low voltage separation

The integrated circuit breaker provides essential overcurrent protection

if it is too high

The front-load battery compartment allows for rapid maintenance without removing the thermostat from the sub-base

maintaining system integrity under fluctuating thermal loads

Johnson Controls GRD10-1R Wire Guard Els PW 17895 This refers to the High/LowThe Johnson Controls GRD10 1R Wire Guard is a heavy duty field accessory designed to protect critical environmental controls from physical damage, tampering, and unauthorized setpoint adjustment. This steel wire thermostat guard features a robust, open web design that ensures maximum airflow to the sensing element while providing a physical barrier in high traffic or hostile environments. With inside dimensions of 6. 19" x 3. 81" x 2. 56", the GRD10