Combustible Gas Detector, Flush/Surface Mount, 12 to 24 VAC/9 to 32 VDC, 40 VDC 100 Milliampere Alarm, 900 Square Foot Coverage, White Plastic Case $115.01
Combustible Gas Detector, Surface Mount, 12 to 24 VAC/DC, SPDT, 4-1/2" Width x 1-5/8" Depth x 5" Height, Plastic Case, White $117.88
Combustible Gas Detector, Flush/Surface Mount, 3 Watt Power, 12 to 24 Volt AC/12 to 48 Volt DC, 24 Volt DC 75 Milliampere Alarm, 900 Square Foot Coverage, Dark Gray $379.82
AXIS A9188 A91 Series Network I/O Relay Module, I/Os with Supervised Inputs and Configurable Levels $740.91 6% less