SBS-C3H8 Propane Gas Detector Complete Propane Detection System The SBS-C3H8 Propane Detector is a propane detection system with visual and audible alarms and 25%LEL and 50%LEL propane relays. The system comes complete with the main control, a highly accurate propane gas sensor and a 25 ft. cable. This unit can be powered with AC and/or DC power and can be mounted directly to a wall or to an electrical box, making it extremely versatile and very user-friendly. The SBS-C3H8 includes relays for remote connection to alarm/monitoring systems and for control of external relays or an exhaust fan. • Main control • Propane sensor • 25 ft. cable Businesses Warehouses (heating) Hospitals Restaurants Food preparation Propane fueled forklifts Propane fueled vehicles Agriculture / livestock Homes Gas fireplaces Propane fueled back-up power systems Universal power inputs: 110/220 Vac and/or 12–48 Vdc input Strobe light for visual alerts Sensor status indicator LEDs on the main control Modular design for optimal placement of sensor(s) • Wall or 2-gang junction box mountable • Mechanical relays are easily accessible: • Warning 25% relay, 15 A @ 120 Vac; 10 A @ 277 Vac; 10 A @ 28 Vdc • Alarm 50% relay, 0.5 A resistive @ 28 Vdc, 0.5 A @ 125 Vac • Redundant power supply capability; dual AC and/or DC power supply connections (DC power supply will operate as backup power source) • Indicator LEDs can be tested by pushing the red “TEST” button • Sensors can be tested in the field with the P/N C3H8-TESTKIT Main Control Mounting and Power Options Protects life, property and company profits Ideal for remote locations Fail safe mode in event of loss of power Up to three (3) sensors can be installed to main control to meet space coverage requirements 2-Gang Junction Box Hardwired AC and/or DC (optional)

Alarm Settings: Should the propane gas concentration reach 50%LEL by volume, the “50% Alarm” red LED will light up, the strobe will flash and an audible alarm will sound. In addition, the 50%LEL internal relay will energize and can be used to activate a building management/alarm system (via SCADA/Modbus). Available Accessories Ordering Information Part No. Propane detector with (1) sensor and 25 ft. cable Accessory Ordering Information Part No. Additional propane sensor with 25 ft. cable Additional propane sensor with 50 ft. cable Additional propane sensor with 100 ft. cable Test kit (includes...