The Honeywell Ademco 503 is a 135 degree fixed temperature closed circuit thermostat that covers up to 400'.
Product Specification
- Detects heat at a fixed temperature of 135?F (57?C).
- Closed-circuit design for reliable activation.
- Ideal for areas where smoke detectors may not work effectively.
- Compact and easy to install.
- Integrates with fire alarm systems for enhanced protection.
