Xintex S2-A Propane/CNG Monitor & Control - Plug-In Sensors

S-2a propane / cng monitor and control. The s-2a propane monitor / controller features include low current draw, plug-in sensors (second sensor optional), display module fault light / alarm and fault light / alarm to indicate a malfunction in either one of the sensors. (fault indicators show that the module or sensors are not working and may need repair). Ms-2 sensor and 1 sv-1 solenoid valve included. The system is calibrated at 20% lel (lower explosive limit) to eliminate most nuisance alarms while allowing enough time to take action. A microprocessor-controlled two-channel monitor with automatic solenoid valve on / off switch. A "press to test" button for each channel confirms function. Module size: 4.75?¦ñ inch x 3.75?¦ñ inch x 7/8'' inch. Manufacturer: fireboy-xintex. Fume type = propane. Voltage - input range (volts) = none. Blower relay = none. Sensors included = 1. Generator shutdown = none.