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    WIFI Temperature and Humidity Sensor with Display

    $186.98
    SKU: ATO-TAHS-WIFI
    WIFI temperature and humidity sensors are designed for high accuracy and are suitable for a wide range of applications requiring environmental monitoring. Provides smart measurement of temperature and humidity with optional humidity accuracy of ±2%RH or ±3%RH. It supports 10~30V DC power supply, has a digital display for real-time monitoring of temperature and humidity data, and integrates a dual-band 2.4GHz and 5GHz WIFI interface to ensure efficient data transmission.

    Beam Load Cell, 10kg/20kg/30kg/50kg/100kg/200kg/500kg to 1000kg

    $126.98
    SKU: ATO-LC-B01
    Beam load cell can bear both tension and pressure. It is a cantilever beam load cell with bellows. Beam load cell has good anti-eccentric load and anti-fatigue performance, with low height, all sealed structure and protection class IP68. Multi cantilever beam load cells are suited to use for static and dynamic weighing system, such as variable belt scale, hopper scale, flatform weighing scale, material testing machine and other force measurement and process control.

    Carbon Monoxide (CO) Gas Sensor, 0 to 1000ppm

    $54.22
    SKU: ATO-GS-ACM3000
    Factory price CO gas sensor provides electrochemical principle, 0ppm to 1000ppm detection range, high sensitivity, low power consumption, fast response & recovery and simple driving circuit, perfect for Carbon Monoxide leak detection for residential or industrial use.

    Carbon Monoxide (CO) Gas Sensor, 5ppm to 5000ppm

    $30.03
    SKU: ATO-GS-702B
    The provided Carbon Monoxide gas sensor uses a simple circuit to convert conductivity changes in gas concentration into corresponding output signals. MEMS CO gas sensor with a detection range 5ppm to 5000ppm is a good choice for carbon monoxide leak detection in residential or industrial applications.

    Carbon Monoxide (CO) Gas Sensor, RS485/4-20mA/0-5V/0-10V

    $78.99
    SKU: ATO-GS-3002-CO
    Carbon monoxide sensors are available in a choice of models, RS485/4-20mA/0-5V/0-10V. high quality sensors with high accuracy, calibrated by standard gas multipoint calibration. The CO transmitter measurement accuracy up to ±5ppm or ±10%. Pressure range is 90-110Kpa. High-density material, accurate measurement, waterproof and moisture-proof, strong anti-interference. Suitable for many scenarios, floriculture, laboratories, agricultural greenhouses, industrial workshops.

    Clamp-on Ultrasonic Flow Sensor, 0-3000ml/min, RS485/4-20mA

    $932.37
    SKU: ATO-FS-AFD6
    Clamp-on ultrasonic flow sensor adopts non-contact installation, with a flow measurement range of 0-3000 ml/min, suitable for liquid flow monitoring. The sensor adapts to the ambient temperature range of 0~50℃, the humidity range of 35~85% RH (no frost), and supports 12~24VDC power supply.

    Explosion Proof Limit Switch, Roller Lever/Plunger, 220V/380V

    $61.72
    SKU: ATO-LS-LX5
    Factory price explosion proof limit switches for sale online, with roller lever and roller plunger designs available. The safety limit switch is rated at 5A and can be used in 220V/380V voltage systems, capable of stably controlling a variety of loads. Complying with IIB level explosion-proof standards and its aluminum alloy housing has excellent corrosion resistance and mechanical strength.

    Leaf Temperature and Humidity Sensor, RS485

    $145.65
    SKU: ATO-TAHS-LEAF
    Buy high accurate and durable leaf temperature humidity sensors are widely used in agro-weather stations, greenhouse control, smart agriculture and other fields. The temperature and humidity sensor supports RS485 output and ModBus protocol to ensure accurate and stable data transmission. Adopting IP67 protection design, it has excellent waterproof and dustproof performance, which ensures the equipment to run stably for a long time.

    RTD Pt100 to 4-20mA/RS485 Converter

    $76.82
    SKU: ATO-RTD-M1
    Higher quality RTD Pt100 to 4-20mA/RS485 converter for sale, supports measurement ranges up to -50~500°C or -200~50°C. It converts Pt100 resistance signals into 4-20mA or RS485 outputs, operating on 12~36VDC power. With high accuracy (±0.1% FS or ±0.2°C), a fast 20ms response time, and excellent stability (±0.05% FS/year), it ensures reliable performance. With IP54 protection and an operating temperature range of -40~80°C. Ideal for precise and durable industrial temperature monitoring.

    Silicon Pressure Sensor for Slurry/Wet Soil, 0~0.6MPa

    $487.58
    SKU: ATO-PRES-S38A
    The 0-0.6MPa silicon pressure sensor is designed for pressure detection in complex media such as wet soil and slurry. The pressure transmitter outputs RS485 and 4~20mA, and supports wide voltage power supply, which is convenient for compatibility with different devices. Its 316L stainless steel diaphragm and shell design makes it corrosion-resistant and compatible with the medium, suitable for harsh environments.

    Suspended Solids Sensor for Water Quality, 0.5~2000mg/L

    $895.88
    SKU: ATO-WQS-SS
    Smart online suspended solids sensor for professional water quality monitoring, measuring range 0.5~2000mg/L, has dual electrodes, RS485 communication, and IP68 protection. Offers reagent-free operation, eco-friendly design, and strong anti-interference capability. With automatic cleaning brush to effectively eliminate air bubbles. Suspended solids water quality sensor suitable for industrial wastewater, sewage treatment, aquaculture.

    Visibility Sensor for Atmospheric, RS485, 10-30V

    $1,698.76
    SKU: ATO-VS-NJDN01
    Atmospheric visibility sensor uses the 35° forward scattering principle to measure the visibility in the atmosphere in real time. The visibility sensor supports RS485 output, the power input range is 10-30V, and provides multiple measurement range options (5-10000m, 5-50000m, 5-80000m) to meet the visibility monitoring needs under different environmental conditions.

    Accurate Temperature Humidity Sensor, Stainless Steels Duct

    $175.88
    SKU: ATO-TAHS-300ATH
    Accurate temperature and humidity sensors at low cost, with stainless steel duct construction, designed for high accuracy measurement, support RS485, 4-20mA, 0-5V and 0-10V output signals, and measurement temperature can be upgraded from -40°C to 120°C, providing stable and durable temperature and humidity monitoring solutions.

    Beam Load Cell, 200kg/500kg/1000kg/3 ton/5 ton to 10 ton

    $119.96
    SKU: ATO-LC-B02
    Cantilever beam load cell has two ends, one end for fixing, one end for loading, with sealed well, high accuracy, easy to install, easy to use, good interchangeability. It can bear both tension and pressure, and has good automatic self-aligning performance after force. Load cell can be applied for ultrathin electronic truck scale, platform scales, hopper weigher and other weighing instruments.

    Chroma Sensor for Water Quality, 0~500 NTU

    $1,355.98
    SKU: ATO-WQS-COL
    Good price chroma sensor for water quality with a measurement range of 0–500 NTU and 0–500 Hazen. It supports RS485 communication and self-cleaning function. No chemical reagents, no secondary pollution, with turbidity compensation function. The water quality sensor widely used in surface water, groundwater, secondary water supply, pipe network water, industrial wastewater and other online monitoring.

    Explosion Proof Vibration Transmitter

    $510.55
    SKU: ATO-EPVT
    The explosion proof vibration transmitter has a wide velocity range from 10 mm/s to 50 mm/s, 4-20 mA output current. This type of explosion proof vibration sensor is used with a variety of test systems, provides high reliability and measurement accuracy. It is your best choice.

    Flammable Gas Sensor, 300ppm to 10000ppm

    $5.83
    SKU: ATO-GS-MQ2
    High-quality gas sensor has good sensitivity to flammable gases and smoke from 300ppm to 10000ppm. This combustible gas sensor has long life, low cost and simple drive circuit, used for household gas leak alarms, industrial combustible gas alarms and portable gas detectors.

    Height Limit Switch for Lifting, 4 NO 4 NC, 380V 10A

    $79.84
    SKU: ATO-LS-DXZ
    Lifting height limit switch for sale online, equipped with a 4 normally open (NO) + 4 normally closed (NC) contact combination. The voltage of the height limit switch is 380V, and the conventional thermal current is 10A. The working environment adapts to a wide temperature range of -20℃ to +80℃. The transmission system provides options from 1:13 to 1:960. The high limit switch is suitable for long-term high-frequency lifting control of equipment such as cranes and high-bay warehouses.

    Micro Flow Sensor for Air/Oxygen/Nitrogen, 0~±0.2L/min

    $84.92
    SKU: ATO-FS-AFS01
    Micro flow sensor has a flow range of 0 to ±200 sccm (0 to ±0.2 L/min) and an accuracy of ±3% reading, and can be used for air, oxygen and nitrogen flow measurement. Its operating voltage range is 4.75V to 5.25V, and the operating current is 7.5mA to 10mA, which is suitable for many fields such as medical, industrial and laboratory.

    RTD Pt100 Temperature Sensor, Waterproof

    $72.69
    SKU: ATO-RTD-WZP
    Waterproof RTD Pt100 temperature sensor for sale at a good price. The waterproof RTD sensor is made of high-quality stainless steel to ensure long-term stability and high precision. The waterproof RTD temperature sensor probe has a measurement range of -20~450℃ and a measurement accuracy of ±0.1℃. It can be used in petrochemical, food and pharmaceutical, electric power shipbuilding, papermaking and textile and other fields.
    Sensors