Explosion-proof linear displacement sensors are critical for die casting machines because they provide accurate shot position feedback in high-temperature, high-pressure, and potentially flammable environments. Their price usually ranges from USD 250 to USD 1,200 per unit, depending on stroke length, accuracy, output signal, housing material, cable protection, certification, and brand. A basic 100–300 mm sensor with IP67 sealing and 4–20 mA output may cost USD 250–450. Longer strokes, stainless steel housings, redundant outputs, ATEX/IECEx certification, and high shock resistance can push prices to USD 700–1,200 or more. When comparing quotes, buyers should not focus only on unit price. Installation labor, downtime risk, calibration, spare parts, and supplier support affect total cost. For die casting, choose a sensor with robust sealing, heat shielding, vibration resistance, and a proven explosion-proof rating. Verify stroke, resolution, repeatability, output type, connector, and operating temperature before ordering. A slightly higher-priced sensor with reliable certification and fast delivery often lowers maintenance cost and improves safety. Bulk orders and local stock may reduce lead time but may not lower certification-related costs. Request samples, datasheets, and warranty terms, then calculate cost per production cycle. Always confirm that the supplier can provide test reports and replacement support for die casting automation. In short, the right explosion-proof linear displacement sensor price is the best balance of safety, accuracy, durability, and lifecycle cost.