Hydrocarbon level alarm

The control unit can control up to 3 sensors. The unit controls the connected sensors every 30 minutes (adjustable frequency). The current status is displayed on the 2X16 LCD screen located on the front of the unit. Oils are detected by conduction, the water behaves like a conductor while the oil behave like insulator. The sensor consists of two stainless steel parts, where one part is immersed in oil, a signal is sent to the control box which triggers the alarm. The control unit detects the alarm condition of the sensor, it comes in two versions : - one reported alarms with a visual sound signal. - the second transmits the state of the sensors by GSM (SMS on mobile phone). A central alarm signal, a modem, or others external alarm devices can also be connected to the relay.