Module with an analog sensor of carbon monoxide and combustible gases (methane, propane) MQ9. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0134

Finder 26.08.8.230.0000 is an impulse relay with a 230 V AC coil, featuring two normally open contacts (DPST-NO) with a maximum switching current of 10 A. This relay allows control of electrical circuits in industrial and building applications, offering reliability and durability.

Module with 8 digital inputs and 8 digital outputs. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in an industrial housing. Wellpro WP8028ADAM

Finder 12.61.8.230.0000 is a weekly time switch with one 16 A contact, designed for automating the operation of electrical devices and systems. It offers flexible programming options and can be configured both locally and via NFC.

Module with an analog MQ4 methane sensor. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0129

Finder 12.A1.8.230.0000 is a digital time switch with an astronomical function, designed for precise control of lighting and devices based on the sun\'s position. It is used in both outdoor and indoor installations where automatic control depending on daylight conditions is required.

Finder 12.51.8.230.0000 is a digital time switch with daily and weekly programming options, designed for DIN rail mounting (35 mm width). It features a single-pole double-throw (SPDT) output with a 16 A load capacity at 250 V AC, allowing for precise control of electrical devices. Thanks to NFC technology, users can easily configure the device using a smartphone.

Finder 7M.24.8.230.0210 is a compact, bidirectional single-phase energy meter with RS-485 and NFC communication, designed for advanced energy consumption monitoring. It is used in photovoltaic installations, building automation, and energy management in distributed systems.

Power module with a USB Type-C connector based on the STUSB4500 system. It enables powering devices with voltages ranging from 5 V to 20 V and currents up to 5 A. Configuration via the I2C interface. SparkFun DEV-15801

Finder 22.22.8.230.4000 is a modular installation relay with two normally open (NO) contacts, each with a 20 A load capacity at 250 V AC, made of AgSnO₂ contact material. The relay is designed for DIN rail mounting (17.4 mm width) and operates with a 230 V AC coil voltage. Additionally, it features a test button for manual operation, facilitating diagnostics and easy control.

Pololu High-Power Motor Driver 18v25 CS

Finder 18.31.8.230.0031 is a PIR sensor for flush mounting, controlling a single NO contact rated at 10 A at 230 V AC. Ideal for automatic indoor lighting control, it is mounted in suspended ceilings and ensures reliable and safe operation.

Real time clock (RTC) module. It allows you to read data about the date and time. Communication with the module takes place via the I2C interface. SparkFun BOB-16281

Finder 70.41.8.400.2030 is a voltage monitoring relay for three-phase AC networks with an interphase voltage of 380–415 V AC. The device allows for delay adjustment in the range of 0.5 to 60 seconds, and its output is a single-pole double-throw (SPDT) contact with a 6 A load capacity at 250 V AC. The relay is designed for DIN rail mounting and is equipped with screw terminals.

Optical Time of Flight sensor with Pmod I2C connector. The built-in ISL29501 digital signal processor calculates the time it takes for the light emitted by ToF to reach the destination and back. The calculated time is proportional to the distance. Pmod ToF has a range of up to 5 m. Digilent 410-392

Module with three optical inspection sensors (spectrophotometers) from the AS7265x series. The module consists of three sensors; AS72651, AS72652 and AS72653 which can detect wavelengths from 410nm (UV) to 940nm (IR). SparkFun SEN-15050

Pololu High-Power Motor Driver 24v20

Module with the MQ3 analog alcohol sensor. It enables gas detection and construction of a simple breathalyzer. The module is powered by 5 V and has an analog output. DFRobot SEN0128

W25Q128JV flash memory module with 128 Mbit (16 MB) capacity. It supports communication via SPI, Dual or Quad SPI interface. Waveshare W25QXX DataFlash Board