网页Power: 104-126 VAC, 50/60 Hz. 1 ampere standard; 204-240 VAC, 50/60 Hz. optional. 4-20 mA, proportional to gas analysis range selected. This output is isolated and self-powered with a compliance of 10 VDC. Two independent alarm relays, form C, with a rating of 5 amperes at 120/240 VAC (resistive).