Sensors

Get a gas flow sensor at low price. It measures the flow of air, Nitrogen(N2), Oxygen (O2) and other non-aggressive gases with high accuracy. This air flow sensor operates with a 5V supply voltage, -10~200SLM flow range, and digital IC interface, Mainly used in ventilators, medical, environmental monitoring and laboratories.

High accuracy piezoelectric pressure sensor can measure pipeline pressure and explosion pressure in the range of 10/50/100/200/400/600 MPa. Stainless steel pressure transducer has characteristics of small size, lightweight, wide frequency response and high rigidity.

Indoor pipe thermocouple temperature sensor offers a measurement range of -50 to 100℃ with insertion depths of 100mm, 150mm, or 200mm. The thermocouple sensor provides output signals in 4~20mA and RS485, with a response time of 18 seconds and stability of ±0.1% FS per year. The temperature sensor has a protection level of IP65 (after electrical connection) and operates in environmental temperatures of -40 to 85℃ with humidity levels up to 95% RH (no condensation). It has an accuracy level of 0.25%FS and 0.5%FS. Ideal for precise temperature control in indoor environment, ventilation ducts, HVAC systems, and other temperature and humidity-controlled environments.

Pt100 RTD sensor is a platinum resistor temperature sensor, with small diameter, good flexibility, good vibration resistance, high accurate and fast thermal response time. RTD sensor can directly measure the temperature in the range of -200~+420 ℃ in various production processes.

Buy a compact sensor for humidity and temperature online. It uses the optical cold mirror principle to directly measure temperature and humidity. High-precision temperature and humidity sensor is equipped with standard Modbus RTU communication, widely used in measurement and testing, aviation, university scientific research, meteorological environment, electronic power, medicine and other industries.

Factory price temperature and humidity transmitter can switch the temperature range of 0~50℃ or -40~+60℃, and the RS485/0~10V/0~5V signal output is optional. High-precision rail-type temperature and humidity sensor is used in scientific research, chemical industry, environmental protection, medical and health, food and other occasions where air temperature and humidity need to be measured and controlled.

Ultrasonic level sensor has integrated structure and mainly consists of LCD display, ultrasonic probe and waterproof connector. Ultrasonic level sensor can be used for non-contact level measurement of various medium, such as liquid (water/fuel/oil), solid (metal or nonmetal), or powder (chemical materials), etc. The measuring range can be from 0-5m, 0-10m, 0-15m, 0-20m to 0-60m. The output signal can be 4-20mA or RS485/232. Ultrasonic level sensor also has optional power supply DC 24V or AC 220/50Hz.

Factory price AC current sensing switch for sale online. It can accurately monitor 0.5A to 50A AC, NO contact mode, self-power supply, fireproof housing, and adjustable operating current. This current sensing switch is widely used in AC measurement and monitoring, AC motor overload protection and electronic switch control systems.

Buy an adjustable AC current switch online. It has normally open or normally closed form, 0.5A-200A (AC) high range, and self-powered mode, which is designed for monitoring or detecting the current of electrical equipment safely and conveniently. Low-cost current sensing switch is suitable for automated industrial control equipment and power monitoring.

Flameproof sensing switch is used to accurately monitor AC from 0.2A to 30A, with optional normally open or normally closed modes. Low price current sensing switch can control various automated industrial control equipment, flashlights, buzzers, relays, microcontrollers or other electrical load equipment.

Precision 24VDC door limit switches with 1NO+1NC contacts in PA66 flame retardant housing with green indicator light, rated at 1mA, protection class IP67, long life of up to one million mechanical operations, and a wide range of operating key options. Suitable for various safety and different door limit switch applications.

Buy duct air flow sensors/transmitters from ATO for measuring airflow velocity and flow rate. Supports multiple output modes such as RS485, 4-20mA, 0-5V, and 0-10V, with a power supply voltage range of 10-30VDC, capable of stable operation at temperatures ranging from -10℃ to 50℃. The duct air flow transmitter can accurately measure in various media such as air, nitrogen, and oil fume exhaust gas.

Stainless steel explosion-proof pressure sensor manufacturer direct sale online. Factory price pressure transmitter equipped with 0.1-0-60MPa measurement range, threaded connection, 4-20mA, 0-5V, 1-5V, 0-10V, RS485 output signal, DC 12V/24V power supply and 5-15 cooling fins, suitable for measuring and controlling steam and fuel oil at -20℃~350℃.

Buy an industrial temperature and humidity sensor with sound and light alarms. Factory price temperature and humidity transmitter comes with a high-brightness LED display, optional RS485, 4-20mA & relay output signals, IP66 rating, Ex db lIC T6 Gb/Ex tb ib IC T80℃ Db explosion-proof level and operates in 10-93% RH and -40°C to 70°C environments.

This model of limit switch box features a die-cast aluminum housing with a black polyester powder coating, ensuring corrosion resistance and durability. The 2-SPDT mechanical microswitch offers precise control and is compatible with 250VAC/DC voltages. It comes with a special gift of a waterproof junction and cover to enhance the product’s waterproof capabilities. Optional activity mounts are available in two different materials to meet various installation requirements. The product has a wide operating temperature range from -20℃ to +60℃ ensuring stable operation regardless of environmental temperature changes.

Pt100 RTD sensor is a platinum resistor temperature sensor with protection head and stainless steel thermowell, high pressure resistant, fast thermal response time and long operating life. RTD sensor can directly measure the temperature in the range of -200~+420 ℃ in various production processes.

Buy a stainless steel pressure transmitter for steam/fuel oil. This medium-high temperature pressure sensor probe can work stably for a long time at a high temperature of -20℃~350℃, with a 0-60Mpa measurement range and an output signal of 4-20mA, 0-5V, 1-5V, 0-10V, RS485, DC 12V/24V power supply and 5-15 cooling fins, suitable for measuring and controlling liquid and steam pressure in high temperature fields.

The digital temperature and humidity sensor is available now in hot sale with RS485 output and current and voltage output (4-20mA, 0-5V, 0-10V) for a wide range of monitoring and control needs. With a temperature range of -40°C to 120°C and a humidity measurement range of 0% to 100% RH, it is ideally suited for industrial and built environments.

Mini limit switches for sale online offer a choice between adjustable rod lever or roller lever options to suit specific application requirements. Compact limit switch features a rated current of 6A at 250VAC and are designed with an IP66 rating, ensuring protection against dust and water ingress. The electric limit switch includes normally open (NO) and normally closed (NC) contacts, providing flexibility for circuit design and application.

RTD sensor built-in small transmitter. It converts temperature to 4-20mA standard signal proportional to the electrical signals of thermistor, and outputs to display instrument or DCS system in control room. Transmitter adopts silicone rubber seal structure, good anti-interference ability, shock and humidity, apply to harsh environments. Measuring temperature range -200~+420 ℃.