| old version. The old version was very slow to respond and sometimes gave false triggers. The new one is much better. It takes a separate 12V for powering it and then a separate wire from the pump controller for knowing when the system should be working. It has adjustable trips for delay & flow rates. Before, the 12V going to your pump would also power the Safe Injection. Not great because the pump controller could be doing PWM to control the pump, meaning the Safe Injection Unit is seeing the same to power itself.
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