Hydrolevel 48-145 OS-200 Wireless Outdoor Sensor Kit for HydroStat 3200-Plus and 3250-Plus

The Hydrolevel OS-200 Wireless Outdoor Sensor Kit is designed to enhance the efficiency of your boiler system by monitoring outdoor temperature and automatically adjusting boiler water temperature accordingly. This wireless kit activates outdoor reset functionality and warm weather shutdown capability when used with HydroStat 3200-Plus and 3250-Plus control systems.

Key Features:

• Wireless design eliminates the need for long cable runs between outdoor sensor and boiler control
• Activates outdoor reset feature that adjusts boiler temperature based on outdoor conditions for maximum fuel efficiency
• Warm weather shutdown prevents boiler from heating when outdoor temperature reaches preset level
• Reset ratio function regulates boiler temperature with 20-degree differential for burner operation
• Thermal boost feature continuously increases reset temperature by 10 degrees every 30 minutes until thermostat is satisfied
• Long battery life with minimum 10-year lifespan using lithium batteries
• FCC and IC approved for reliable wireless communication

Technical Specifications:

• Transmitter dimensions: 5-3/16" H x 2-3/4" W x 2" D
• Receiver dimensions: 4-3/4" H x 2-7/8" W x 7/8" D
• Transmitter enclosure: White ABS plastic, NEMA 4X rated for outdoor use
• Receiver enclosure: White PVC plastic, NEMA Type 1 rated for indoor use
• Operating range: Transmitter -40°F to 140°F; Receiver 32°F to 122°F
• Receiver power: 24V AC ± 10%, 1 VA
• Sensor type: 10K Type 2 thermistor

This kit includes both the outdoor wireless transmitter with integrated temperature sensor and the indoor receiver module that connects to your HydroStat control. The system overrides the Thermal Targeting feature on HydroStats and uses a reset ratio method to optimize boiler performance based on real-time outdoor temperature conditions, resulting in significant fuel savings.

Compatibility: Compatible with Hydrolevel HydroStat 3200-Plus, 3250-Plus, and 4200 HydroStat-IC models only.