DOL 41 Capacitive Relay Sensor

DOL 41 is a reliable capacitive relay sensor designed for general detection of feed, grain and solid materials.

The sensor offers extensive functionality and is easy to operate.

The DOL 41 capacitive sensor has no time delay. The relay switches when the sensor is activated and remains in that position until activation ceases.

Benefits

  • Highly reliable
  • Multiple mounting options
  • Robust design for harsh environments

DOL 41 capacitive sensor for general detection of feed, grain and solid materials

The capacitive sensor is typically used as an empty, full and level indicator in tanks, silos and containers. DOL 41's powerful built-in relay can directly control many functions. DOL 41 LEDs show when its switches are activated. DOL 41 has NO (normally open) and NC (normally closed) outputs. All settings can be easily changed at any time.

Improved usability

The sensor features several special functions that improve usability:

  • Reset the sensor to factory settings
  • Switch LED indicators on/off

The DOL 41 capacitive sensor has a built-in high-power 5A relay with a changeover function. It is available in two voltage variants: 10–30 V AC/DC or 90–250 V AC

The sensor has no time delay. The relay switches when the sensor is activated and remains in that position until activation ceases.

Sensitivity is easily adjusted with two buttons.

Highly reliable sensor

Electronic rather than mechanical switches provide exceptional reliability, particularly because the electronics are fully enclosed in a special plastic. This gives maximum protection against moisture and other external influences in harsh environments.

The sensor is CE, UL and C-UL certified and highly resistant to interference from electrical communication, such as mobile phones, and transients, such as those from motors and contactors. This makes it highly reliable.

Multiple mounting options

DOL 41 is easily mounted in a plastic gland, also available as a flanged solution for easy external mounting. A threaded version provides further mounting options. DOL 41 can be installed inside a feeder or through an opening in a feeder, hopper or silo using the supplied plastic gland.

View all dol-sensors capacitive proximity sensors here

DOL 41 variants

41

DOL 41 smooth housing

41

DOL 41 threaded housing

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Downloads

English
Brochure
DOL 41_Onepager
English
Declaration
DOL 40 Series_DOL-41-DOL-43-DOL-45-Declaration_EU_EN
English
Technical information
DOL 40 Series_DOL 41-43-45_Technical Information_EN
English
Technical User Guide
DOL 40 Series_DOL 41-43-45_Technical User Guide_EN
English
Brochure
Capacitive Sensors Brochure
English
Brochure
Corporate Brochure_Pig
English
Brochure
DOL 41 Fittings

Price-list variants

June 2026 price list · EUR

Product codeProductPrice, EURView in shop
100672DOL 41R Capacitive sensor, 10-30 V AC/D100.27 EURView in shop →
100671DOL 41R Capacitive sensor, 90-250 V AC100.27 EURView in shop →
100771DOL 41R-G Cap. sensor, thread, 90-250 V100.94 EURView in shop →
100772DOL 41R-G Cap. sensor, thread 10-30 V100.94 EURView in shop →

Prices from the price list dated 1 June 2026. The manufacturer reserves the right to price adjustments and product alterations.

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