An automated testing apparatus for detection of a chemical substance, the apparatus comprising: (a) a detector having a sensors operable to detect the presence of a chemical substance; (b) a storage container for storing a testing material; (c) a burst valve assembly in fluid communication with the storage container, the burst valve assembly comprising a burst valve, the burst valve operable to control an amount of the testing material releasable from the storage container through the burst valve assembly such that the burst valve assembly is operable to deliver a quantity of the testing material through the burst valve assembly, the burst valve assembly being positioned in relation to the sensors such that the burst valve assembly is operable to deliver the quantity of testing material in close proximity to the sensor, such that the testing material can be detected by the sensor; (d) a testing control module in communication with the burst valve assembly and the detector; the testing control module operable to provide a signal to activate the burst valve and to initiate flow of the testing material from the storage container through the burst valve assembly; (e) a remote user interface remotely located from the detector, the remote user interface in communication with the testing control module, wherein the remote user interface is operable to receive a detection signal from the testing control module and output a discernable signal that is operable to indicate whether the sensor is functioning; and (f) a pressure monitoring system in communication with the burst valve assembly, wherein the pressure monitoring system is operable to monitor the pressure of the storage container, the pressure monitoring system including a burst valve feedback line for delivering testing material from the burst valve assembly to the testing control module when the burst valve is in a non-energized state. (a) a detector having a sensors operable to detect the presence of a chemical substance; (b) a storage container for storing a testing material; (c) a burst valve assembly in fluid communication with the storage container, the burst valve assembly comprising a burst valve, the burst valve operable to control an amount of the testing material releasable from the storage container through the burst valve assembly such that the burst valve assembly is operable to deliver a quantity of the testing material through the burst valve assembly, the burst valve assembly being positioned in relation to the sensors such that the burst valve assembly is operable to deliver the quantity of testing material in close proximity to the sensor, such that the testing material can be detected by the sensor; (d) a testing control module in communication with the burst valve assembly and the detector; the testing control module operable to provide a signal to activate the burst valve and to initiate flow of the testing material from the storage container through the burst valve assembly; (e) a remote user interface remotely located from the detector, the remote user interface in communication with the testing control module, wherein the remote user interface is operable to receive a detection signal from the testing control module and output a discernable signal that is operable to indicate whether the sensor is functioning; and (f) a pressure monitoring system in communication with the burst valve assembly, wherein the pressure monitoring system is operable to monitor the pressure of the storage container, the pressure monitoring system including a burst valve feedback line for delivering testing material from the burst valve assembly to the testing control module when the burst valve is in a non-energized state.