We have the following requirement: Our Customer has the following ranges of flow 1” dia pipe for models up to 3000LPH, 1 ½” dia for above 3000 and up to 6000 LPH and 1 ¾” dia for above 6000 LPH and up to 10000LPH.We have the totalizer pcb, we are looking forward for a sensor which can give a pulse output or a 4-20mA output.Kindly suggest your best solutions and proforma invoice for 1 number each on the below mentioned address.