
STEM S.R.L.
About us
Founded in 1987, STEM S.r.l. began its production activity by manufacturing magnetic proximity sensors and magnetic units. Over the years, the range of products has expanded with the introduction of level switches for industrial applications, sensors and control units for lifts and systems for machine functional safety designed to integrate sensors and coded magnetic units used to transmit signals to a dedicated safety control units.
Inclinometer and magnetic angular sensors are the latest product added to our portfolio to approach hydraulic and agriculture machine builder market
STEM product quality is guaranteed by the achievement of the ISO 9001:2015 system certification (First quality certificate issued by DNV in 1997) and by the product approvals granted by TUV, IMQ, UL.
Products & services
Proximity magnetic sensors
Proximity magnetic switch based on reed or Hall effect technology

L3xx Level Switch
Vertical float switch based on reed technology with Liquid Sucking tube

NCMAT02 Safety module
The NCMAT02 safety module is used to control pressure-sensitive mats, safety edges, and bumpers. The device can be powered by 12Vdc or 24Vdc and is equipped with transistor safety outputs that make it particularly immune to vibration issue

N55RF Multichannel coded magnetic sensor with RFID technology

KLC1 Capacitive liquid level sensor
KLC detects the presence / absence of water or similar liquids in a tank of non-conductive material (ABS plastic, acrylic…). The sensor uses non-contact capacitive technology and is designed to detect liquids through a wall of a non-metallic tank.

KSA4 Angular sensor
Low-cost sensor for detecting the absolute angular position of a rotating permanent magnet. Reliable measurement even with a large distance between sensor and magnet. Application fields: Angular limit switches Angular position feedback for motor control Angular position measurement Valve opening and closing position detection Main features Power supply: 9–30 VDC Resolution: up to 12 bit Sensor–magnet distance: up to 10 mm Measurement outputs: ABZ, 4–20 mA, 0–10 V