Sensors

110V/220V DC side mounted float switch level sensor for sale online. It is made of corrosion-resistant PP material, optional 10W or 30W power, 1/2" NPT threaded connection, low price, high quality, ideal for measuring container liquid levels.

Reliable side-mounted float switch is available with 304 tainless steel, 100V/220V AC or DC, 10VA/50VA power, threaded connection, suitable for liquid levels in water machines, water heaters, solar energy, air conditioners, humidifiers, bathroom equipment, oil tanks, water towers, and chemical industries.

This smart air quality sensor with display and RS485/Modbus-RTU output is a versatile device for comprehensive environmental monitoring. It can detect a wide range of parameters including PM2.5, formaldehyde, CO₂, TVOC, and various special gases like ozone and hydrogen sulfide. Featuring a compact design, it supports 24-hour continuous monitoring and is ideal for applications in smart buildings, industrial settings,and IoT air quality solutions.

The Smart Human Presence Sensor operates on 12–24V DC and uses a 5.8GHz microwave module with 360° coverage, offering adjustable detection range, delay time, and photocontrol. It supports weak-current dry-contact output, suits ceilings up to 3.5m, and provides IP42 protection for indoor and various other environments.

The provided capacitive proximity switch is a square proximity sensor with a PBT plastic shell and a protection level of IP67. The sensor supports four output modes: NPN NO/NPN NC/PNP NO/PNP NC, with an adjustable detection distance of 1-10mm and an operating voltage range of 10-30V DC. Square proximity sensor adopts a non-flush installation method (Not Flush) and can effectively detect all static objects.

Temperature and humidity sensor includes a capacitive humidity sensor and a digital temperature sensor, built-in one high-performance 8-bit SCM, optional one-wire/I2C communication mode, with small size, excellent quality, fast response, all automated calibration, completely interchangeability, high cost performance, low power consumption, long signal transmission distance.

Buy best thermal flow switch with the measuring range of water 3-300cm/s, gas 200-3000cm/s, oil 3-300cm/s. Liquid, air, oil can be measured, accurate to ±1-±10cm/s. G1/2, G1/4 male thread or G1 thread, 100 bar working pressure, 15-60mm sensor length, PNP/ NPN/ relay/ 4-20mA output signal.

E type thermocouple has the highest thermoelectric force and sensitivity in base metals. Sheath thermocouple have shielded thermocouple wire of common length 500mm and sheath diameter Ф3~Φ8mm, with flexibility, high pressure resistant, fast thermal response time and long operating life. E type thermocouple can directly measure the temperature of liquid, vapor, gas medium and solid surface in the range of 0~700 ℃ in various production processes.

High frequency ultrasonic transducer (sensor) for sale online, 100-700mm detection distance in ultrasonic power transducer. Small ultrasonic transducer consumption current less than 50mA, IP67 waterproof grade for protection, is designed to deliver good performance and efficiency at an economical price.

This ultrasonic label sensor is designed for high-speed, high-precision label detection in various labeling machines. Utilizing powerful ultrasonic technology, label detection sensor reliably detects transparent, non-transparent, metallic, and other challenging labels, unaffected by color, pattern, or ambient light. With a rapid response time of 250 µs, it ensures excellent process stability and is ideal for demanding industrial applications.

Ultrasonic level sensor has high accuracy 0.3%FS and measuring range 0-5m, 0-10m, 0-15m to 0-40m. It also adopts integrated structure and mainly consists of OLED display, waterproof connectors and ultrasonic probe. Ultrasonic tank level sensor using advanced non-contact ultrasonic measurement technology can be used for liquid/solid/powder level of tapered/spherical tank, tapered feed outlet tank, sewage tank, river, lake, etc. It has optional output signal 4-20mA, RS485, HART, 2 relays or 3 NPN, optional power supply DC 12-16V, DC 24-28V, AC 220V or built-in battery.

Water leak transmitter features RS485 or (NO) relay output, with a maximum detection distance of up to 2000 meters and an IP65 protection level. The water leak sensor supports DC 10-30V power supply, is easy to install and connect to existing systems, and is used in industrial, warehouse, and home locations.

Water level float switch is a device used to monitor and control the Water level float switch is a device used to monitor and control the liquid level in a container. Low price liquid level sensor is available in lengths of 2m~10m, AC 220V operating voltage, 1100W rated power, strong corrosion resistance, good insulation, suitable for industrial, commercial and residential applications.

Waterproof limit switch adopts fully sealed structure, can be used in the industrial occasions required for oil-resistant, waterproof and dustproof. There are different types of actuator for waterproof limit switch, such as roller plunger, roller lever, top plunger and coil spring. It contains two contact switches 1NO+ 1NC and can be used in the environment temperature -25~+70℃ (-13~+158℉). Waterproof limit switches apply to AC-15, 5A/250VAC, 3A/125VAC. Other rated current/voltage is customizable, such as 0.4A/125VDC, 0.2A/250VDC, etc.

High-precision weighing bucket rain gauge sensor to measure precipitation intensity, with RS485, pulse and other output forms, can be adapted to different collection equipment. All type of precipitation monitoring in solid, liquid and mixed solid-liquid state can be carried out. The rainfall sensor can output precipitation intensity and cumulative precipitation, and the real-time precipitation intensity measurement range is 6~1800mm/h, which can ensure high measurement accuracy under various rainfall intensity conditions such as light rain and heavy rain.

Magnetostrictive linear displacement sensor for injection machine, high precision, no temperature drift, anti-jamming performance, long life, high temperature resistance, corrosion resistance, high pressure resistant.

Aluminum alloy rail type magnetostrictive displacement transducer for measuring linear displacement, external installation, compact structure, easy to use, good security, suitable for punching machine.

Magnetostrictive liquid level transducer for servo cylinder, high precision, no temperature drift, anti-jamming performance, long life, high temperature resistance, corrosion resistance, high pressure resistant.

Radar level sensor has a frequency range of 120 GHz, it delivers high accuracy of ±3mm and includes IP68-level. The radar level transmitter outputs data via RS485 and supports calibration through Bluetooth/Modbus protocol. It has angle compensation and temperature compensation, operates on a 3.6V or 12V power supply. Applications in river channels, wells, lakes, and front shoals.

1-phase AC voltage transducer for sale at a low price, 0-120V/300V/450V/600V input, compressive strength AC2Kvrms/min, output voltage 0-10VDC/0-5VDC/1-5VDC, output current 0-1mA/0-10mA/0-20mA/4-20mA, stable output signal. Suitable for residential, commercial equipment and single-phase industrial circuit monitoring.