SINGLE CHANNEL 2 1/16'' (52 mm) round traditional automotive style controller -  It can measure temperature, pressure and other important parameters such as battery voltage and air/fuel ratio.
One programmable alarm will turn on the LED in the front panel to get the driver's attention if the temperature/pressure is above the setting point. It will also close a relay output port that can be used to turn on a buzzer, shut off the fuel, or turn on a cooling fan. each channel contains one relay.
The meter stores the peak temperature/pressure with time stamps that can be checked later. It can also operate in the peak holding mode so that only the maximum value is displayed. The brightness of the LED display can be synchronized with headlight. When the headlight is turned on in the night, the display will be dimmed by the illumination signal. It can also be dimmed directly from the key pad.
Developed based on industrial grade instruments, this four digits gauge offers up to 10 times the resolution and accuracy of most 3 digits gauges on the market. For thermocouple sensor, this gauge have a cold junction compensation circuit to improve the accuracy at low temperature and reduce the temperature drift when a thermocouple sensor is used. 
It can also be set up to be switch boxed between similar sensors for more monitoring of more than two parameters - but only for identical type sensors
Electrical items are not returnable


Package includes:
1 x gauge
1 x pressure sensor
1 x instruction manual
Put custom requests in notes section at checkout - if it cannot be done your money will be immediately refunded

You need dual alternators to run any decent sized Hydrogen Generator system and the pump required to feed it at idle as a single alternator will not put out enough amps - even a high amp one