Sensors

Stainless steel photoelectric level sensor, 1/4 NPT thread type, is NPN/ PNP signal output directly driving the relay. It is a kind of liquid level controller which detects with infrared ray to avoid inducting wrong action by interference of sun or light. The optical water level sensor is easy mounting and can be used in impure or adhesive liquid. The maximum current consumption of the liquid level sensor is less than 15mA, with low power consumption and fast response.

Discounted tetrahydrothiophene (THT) gas sensor for sale at a low price, with a 0-50 ppm measuring range. The THT gas sensor has 0-50ppm measuring rang, 0.5ppm resolution, ±10% precision. It can be used in air quality testing, industrial robots, chemical plants, coal mines, instrumentation, underground pipelines, security workshops, fire emergencies and so on.

Hydrogen (H₂) gas sensor detects 0-1000/2000/5000 ppm using an electrochemical three-electrode system. It offers 7.5 ±2.5 nA/ppm sensitivity, 10 ppm resolution, and T90 <100s response time. Operating at 0 mV bias voltage, The H₂ gas sensor supports 5-30Ω load resistance and works in -30°C to 50°C, 15%-90% RH (non-condensing). Used in environmental quality testing, industrial robots, chemical plants, coal mines, instrumentation.

Photoelectric level sensor with 3 wire for sale, M12 thread type, NPN/ PNP signal output directly drives the relay. Photoelectric switch is a kind of liquid level controller which detects with infrared ray to avoid inducting wrong action by interference of sun or light. It is easy mounting and can be used in impure or adhesive liquid. The level sensor is available in two specifications: common type and high-temperature resistant type to meet the needs of different applications.

This Methanethiol (CH3SH) gas sensor is a high-performance, cost-effective solution for detecting methanethiol concentrations in the range of 0-10ppm or 0-100ppm. This compact and low-power sensor is ideal for reliable gas monitoring in various industrial and environmental applications, providing accurate and dependable performance.

Tuning fork level switch online for sale. The vibrating fork level switch has optional standard type/ high temperature type/ extended type and flange type, g1" thread/ 1" NPT two threads can be chosen, input voltage DC24V/ AC220V are available. The sensor material of the tuning fork level switch is 316 stainless steel, and the connector material is 304 stainless steel, which has good corrosion resistance.

Chlorine (Cl2) gas sensor sold at a discount, measures 0~20ppm, 0~50ppm, and 0~100ppm ranges with ±10% accuracy and resolutions of 1ppm or 0.1ppm, operates on 10~30V DC with RS485 and 4-20mA/0-5V/0-10V output signals, consuming 0.12W or 0.25W. Suitable for workshops, chemical plants, electronic industry, confined living places and other occasions that require real-time monitoring of chlorine concentration.

The provided 1m magnetic flap level gauge can be used for medium liquid level detection of various towers, tanks, spherical containers and boilers. Side-mounted/bottom-mounted/top-mounted magnetic level indicator with 4~20mA transmission mode, has a protection class of IP65, and an operating temperature range of -40℃ to 350℃, suitable for various environments such as low temperature to high temperature, vacuum to high pressure, etc.

This sulfur dioxide (SO2) transmitter is designed for accurate monitoring of sulfur dioxide gas and features RS485/4-20mA/0-5V/0-10V output options. It utilizes a 10-30V DC power supply, has a measurement accuracy of up to 20ppm/2000ppm selectable, and operates over a temperature range of -20°C to 50°C. Ideal for home gas detection and industrial monitoring, this device ensures safety and reliability.

Sulphur hexafluoride (SF6) gas sensor for sale. RS485/4-20mA/0-5V/0-10V are available at good prices. Wireless transmission, no wiring. SF6 measurement range of 0~500ppm, 0~1000ppm. High sensitivity, gas calibrated, no fear of condensation. IP65 high-density material housing, built-in waterproof strip, moisture and dust-proof. Adoption of NDIR spectral absorption technology and active extraction of the gas to be measured. Can be used in harsh environments such as industrial plants/traffic tunnels/energy and electric power/oil and petrochemicals/coal mine tunnels.

Economical price electrode level sensor for sale, with 240VAC/24VDC 5A, SPDT contact, optional power supply 220V AC or 24V AC. The wetted material can be stainless steel or other materials. Conductive liquid level sensor is a switch used to measure the level of liquids in a container by utilizing the principles of conductivity. As the liquid or material rises or falls, it comes into contact with the electrodes, creating electrical connections.

Smoke gas sensor with sensing probe is for sale at factory price. It adopts the semiconductor principle, with a power supply adapted to 10~30V DC, a response time less than 35s and an accuracy of ±5% FS. Smoke gas sensor is paired with a measuring range of 2000-10000ppm, can work stably in an environment of -20~50℃, and has both high sensitivity and high adaptability, suitable for smoke monitoring in multiple scenarios.

Favorable price paddle level switch for sale, with SPDT contact, stainless steel blade, blade speed 1rpm, optional power supply 220V AC, 110V AC, 24V DC. This rotary paddle level switch features low power consumption of just 4W and a stable blade rotation speed of 1 rpm. It is used to detect and monitor the level of material in tanks, bins or silos etc.

Buy favorable price rotary paddle level switch online. This is a sensor device designed to monitor and control the level of bulk solids in bins, hoppers, and silos. Optional voltage of 220V AC, 110V AC, 24V DC, blade speed 1rpm. It operates reliably within a temperature range of -20℃ to 80℃. Consisting of a rotating paddle, this switch is inserted into the container, and as the material level rises or falls, the paddle's rotation is impeded.

Cost-effective vibrating rod level switch for sale online. This is a vibration level sensor for point-level detection, with 250V AC/30V DC 5A SPDT contact capacity, 2.5W power consumption, and optional voltage of 220V AC or 24V DC. Rod level sensor is widely used in manufacturing, agriculture and chemical processing fields to monitor and control the material level in storage tanks, silos or containers, etc.

Shop RF admittance level switch online at economical price, with 250V AC 5A contact capacity, SPDT output, and optional voltage of 220V or 24V DC. This RF admittance level switch offers low power consumption of up to 2.5W and operates reliably in ambient temperatures ranging from -40℃ to 65℃. It is widely used in various types of silos, containers, and pipelines for empty and full material measurement.

Best hall effect flow sensor is for sale at low price. It is made of stainless steel, resistant to a water pressure of 1.75Mpa, and compatible with 1.5-inch interfaces. Water flow meter supports a wide voltage range of 3.5-24VDC, with a flow range of 5-150L/min and a pulse accuracy error of ≤5%. Its large pipe diameter design is suitable for high-flow scenarios, and the hall element ensures stable flow detection.

Buy a submersible level sensor with a ceramic core design and a shell made of PVDF, which has excellent corrosion resistance. The anti-corrosion submersible level sensor supports 4-20mA or RS485 output signals. It supports 9~28VDC voltage power supply. Its protection level is IP68, and the range is optional from 0~20kPa to 0~200kPa, which is used to measure corrosive liquids.

Home or industrial turbine water flow sensor features a large DN80 interface and a wide 20-500L/min flow range. Turbine-type operation ensures consistent performance with a clear pulse output for easy integration and accurate data. Constructed from electroplated aluminum, this liquid flow sensor offers durability for demanding applications. Excellent value and dependable service are guaranteed for both domestic and commercial settings, providing reliable flow measurement with a simple pulse signal output.

The all-stainless steel water flow sensor for sale, with a variety of DN15~GN50 optional interfaces, is corrosion-resistant, high-pressure-resistant, highly accurate, and provides high flow rates, accurate measurement, and meets precision requirements. Compatible with a standard 5V power supply, it is easy to connect. This versatile sensor is a reliable choice for industrial fluid monitoring.