Turck BI2-CRS343-AP4X Proximity Sensor Indicator

The Turck BI2-CRS343-AP4X Proximity Sensor-Indicator delivers non-contact hydraulic piston position detection and high-pressure cylinder monitoring in a compact stainless steel package. Built for hydraulic cylinders, injection molding machines, clamping systems, metal forming equipment, and automated production machinery, it remains reliable under magnetic interference, vibration, and harsh operating conditions. This inductive, high-pressure sensor features a sensing distance of 2 mm with a 34.3 mm probe, PNP NO output, and 3-Wire DC configuration; it operates on 10-65 VDC, draws up to 200 mA, and switches at 30 Hz, with an operating temperature range from -25°C to +70°C. The unit's smooth barrel housing is 12.7 mm in diameter (1/2") and made from stainless steel (AISI 303), with flush-mounting and IP67 protection, rated for static pressure up to 200 bar and dynamic pressure up to 100 bar. It supports reverse polarity protection, cyclic short-circuit protection, and is resistant to both DC and AC magnetic fields, with dual LED indicators for status. Commonly used for hydraulic piston position monitoring, end-of-stroke detection, and machine sequencing in PLC-controlled systems, the BI2-CRS343-AP4X is compatible with variants offering cable or connector electrical connections. Common replacements include BI2-CRS343-AN4X, BI2-CRS476-AP4X, and BI2-CRS603-AP4X.