How do you find a cost-effective solution? Two aspects must always be considered: the purchase price of the sensor and its cost of installation.
Often a customer-specific solution greatly reduces installation and adjustment costs. It should also be kept in mind that the manufacturing cost is less dependent on the complexity of the sensor than on the quantity produced. It can be assumed that for every factor 10 increase in quantity, the costs reduce by about 16% due to the economies of scale.