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Sensors
Industrial Temperature Humidity Sensor with Alarm, RS485/4-20mA
$206.92
SKU: ATO-TAHS-TH6000
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.
Mechanical Limit Switch Box, 2-SPDT, IP67
$75.17
SKU: ATO-LSB-ITS
Mechanical limit switch box features a die-cast aluminum housing with a black polyester powder coating. 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. The limit switch box has a wide operating temperature range from -20℃ to +60℃.
Medical Oxygen Sensor, Lead-free, 0-100% Linear
$78.12
SKU: ATO-GS-O2-3100
Factory price medical oxygen sensor is for sale. It is based on the voltage divider electrochemistry principle, featuring linear measurement across the full range of 0 - 100%, a response time of less than 15 seconds, and high precision and efficiency. O2 oxygen sensor is lead-free and complies with the RoHS standard, can be widely used in medical equipment such as oxygen generators and medical ventilators.
Miniature Compression Load Cell 5kg/10kg/30kg/50kg/100kg
$134.39
SKU: ATO-LC-BU03
Compression load cell has a capacity range from 5kg, 10kg, 20kg, 30kg, 50kg to 100kg. It has a button type structure, miniature diameter 13mm and height 7mm, cable Φ2*2m. Compression load cell can be used in pressure testers, automotive installation, automated assembly line, robotics, etc.
Rail type Magnetostrictive Displacement Measurement Sensor 120mm
$1,218.89
SKU: ATO-MSR-A0120
Aluminum alloy rail type magnetostrictive linear displacement sensor for measuring mechanical displacement, external installation, compact structure, easy to use, good security, suitable for CNC machinery worked in large vibration.
RTD Sensor, Pt100, Thermowell
$91.54
SKU: ATO-RTD-TW
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.
Small Diffuse Photoelectric Sensor, 30cm, NPN/PNP
$52.06
SKU: ATO-PHOS-30CM
Small Diffuse Photoelectric Sensor has 30cm range. It offers reliable short-range sensing for confined automation spaces. Miniature housing eases integration into tight areas. Fast switching, stable diffuse sensing and NPN/PNP outputs ensure consistent performance. It is ideal for small-part positioning and assembly line verification.
Smoke Gas Sensor, 200ppm to 10000ppm
$25.92
SKU: ATO-GS-MP2
Semiconductor gas sensor can detect Propane (C3H8) and smoke at the same time, good sensitivity to LPG, smoke range 200ppm to 10000ppm, long service life and simple circuit. Cheap smoke gas sensor is suitable for use in household smoke leak alarms, industrial smoke gas alarms and portable smoke detectors.
Smoke Sensor Module, TTL Output
$46.33
SKU: ATO-GS-13
Smoke sensor module uses advanced chip thick film semiconductor gas sensors, which have extremely high sensitivity to smoke, propane, and other gases, TTL level output, self-diagnosis of faults, low power consumption, and long life. Cost-effective smoke sensor module is widely used in Household smoke alarms, industrial smoke alarms and portable smoke detection instruments.
True RMS Voltage Sensor, AC/DC 75mV-500V Input, DC 0-20mA Output
$168.96
SKU: ATO-VOS-TRMS20
The True RMS voltage sensor for sale, has AC/DC input voltages of 75mV, 30V, 50V, 100V, 250V, 300V, and 500V, output options include True RMS DC 4-20mA or 0-20mA. The voltage sensor requires DC +12V or +24V auxiliary power and has an accuracy class of 0.5. Ideal for use in applications such as Variable Frequency Drives (VFDs), motor control systems, power monitoring, and electrical equipment requiring accurate true RMS voltage measurement.
Alcohol Gas Sensor, 25ppm to 500ppm
$29.52
SKU: ATO-GS-3Q
This gas sensor has high sensitivity to alcohol gas and can resist interference from gasoline, smoke, and vapor. Quality semiconductor alcohol gas sensor has a detection range of 25ppm to 500ppm, widely used in household alcohol gas alarms, industrial alcohol gas alarms and portable alcohol detectors.
Digital Temperature and Humidity Sensor, RS485/4-20mA/0-5V/0-10V
$158.99
SKU: ATO-TAHS-9A
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 80°C and a humidity measurement range of 0% to 100% RH, it is ideally suited for industrial and built environments.
Micro Ir Diffuse Photoelectric Switch, M3/M4/M5/M6/M8
$49.12
SKU: ATO-PHOS-M
Compact micro IR diffuse photoelectric switch with 10–30V wide voltage range and multi-protection design. Features imported optical module, a stainless steel shell, and 5ms fast response for stable, accurate detection. Ideal for automation and small equipment applications.
Micro Load Cell, Button type, 5kg/100kg/200kg/300kg/500kg/1000kg
$144.97
SKU: ATO-LC-BU04
Micro load cell has a capacity range from 5kg, 10kg, 20kg, 50kg, 100kg, 300kg to 1000kg. It has a button type structure, diameter 20mm and height 9mm, cable Φ3*2m. Button load cell can be used in laminator, riveter, force tester, any automation equipment needs force monitoring.
Mini Limit Switch, Adjustable Rod Lever/Roller Lever, 6A/250VAC
$61.23
SKU: ATO-LS-WL
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.
Non-invasive DC Current Sensor 400A/1000A/2000A/10000A to 20000A
$122.98
SKU: ATO-CUS-DC20000
Hall effect DC current sensor is non-invasive current sensors, with split-core structure, 1ms fast response time, 1.0%FS accuracy, 4-20mA output signal, 12V/24V power supply, strong anti-interference capacity. Open loop current sensors are widely used for DC current monitoring of battery/power inverter/UPS/solar power supply.
Potassium Sensor for Water Quality, 0.7~98,000 ppm
$589.63
SKU: ATO-WQS-IK
Good price potassium sensor with 0.7~98,000 ppm measurement range for water quality for sale. It has 0.01 ppm resolution, ±3% FS measurement accuracy. Digital potassium water quality sensor offers RS485 output signal. Application for drinking water, industrial circulation, wastewater, soil, seawater, and biological fluid testing.
PPM Oxygen Sensor, 10ppm/10000ppm
$239.41
SKU: ATO-GS-O2-10
Low price ppm oxygen sensor is for sale. O2 ppm sensor adopts voltage-divider electrochemical principle, which can accurately detect trace oxygen concentrations at the ppm level or even ppb level, and has core advantages such as low detection limit, fast response (<7s), and high stability. The detection range is from 0-10ppm to 0-10000ppm.
RTD Sensor with transmitter, Pt100, 2 Wire
$112.31
SKU: ATO-RTD-T2W
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 ℃.
Vortex Flow Sensor, 0.5-150 L/min, DN6/DN10/DN20/DN25
$91.61
SKU: ATO-FS-AFD2
Good vortex flow sensor for sale, available in pipe diameters of DN6, DN10, DN20, and DN25 as optional configurations, offers a versatile measurement range of 0.5~10 L/min, 1.8~32 L/min, 5~85 L/min, and 9~150 L/min. It can withstand a maximum pressure of 1 MPa, voltage range of 11.4~25.2V. Widely used in water heaters, HVAC flow detection, heat recovery systems, medical fluid flow detection systems.
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