Hefei WNK Smart Technology Co.,Ltd
21 Year Professional Manufacturer Pressure, Level & Temperature Sensors and Transmitters
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Low Cost IOT Small Pressure Sensor With SPI I2C 0.2-2.9V Output Sleep Function
WNK has 13-year experience of research, development, production and sales of sensors. With the concept of smart water management system, smart fire control, sponge city, smart city, and internet of things, WNK quickly seizes opportunities to develop low cost, low power, small size, with temperature measurement function ceramic capacitive pressure sensor.
After two years of research, development and repeatedly testings, our ceramic capacitive sensors have
entered big quantity production stage. For different applications and installation methods, we offer
OEM, ODM and customization services.
| >> Quick information |
1. Temperature range: -20 to 85℃
2. Wide operation temperature range -40~125℃
3. High performance ceramic capacitive pressure sensor
4. Various 4~20mA/0.5~4.5V/1~5V/ 0~5V/ SPI/ I²C outputs available
5. Small dimensions, dimension customizble
6. Optional packard, M12, Small Hirschman connectors
7. OEM, ODM, customization service available
8. Process connector: G1/4, M12*1.5, 1/4NPT, 7/16-20UNF female
| Input | |
| Pressure type | Gauge pressure, sealing pressure, absolute pressure |
| Measure range | 0.005~10MPa |
| Output | |
| Analog | 0.5…4.5V, 4…20mA |
| Digital | I2C, SPI |
| Accuracy | |
| 0.5% | Linearity, hysteresis, repetitiveness:<0.5% sensor full range |
| 1% | Linearity, hysteresis, repetitiveness:<0.1% sensor full range |
| Thermal effects | |
| Compensation Temperature | -20…70℃, |
| Temperature effect | |
| Accuracy 0.5% | In compensation temperature, accuracy is ±0.5% for LRV & URV are lower than sensor full range |
| Accuracy 1% | In compensation temperature, accuracy is ±1% for LRV & URV are lower than sensor full range |
| Housing material | Stainless steel 304 |
| Ingress protection | IP65/IP67 |
Power supply
| Supply voltage | 5V 24VDC regulated power supply, |
| Supply voltage effect | 5V supply voltage effect: min.3V/max.5.5V For 0.5…4.5V output sensor, voltage has no effect for linearity and temperature compensation, voltage is proportional to LRV and FRV. For I2C and SPI digital output sensor, voltage has no effect for linearity, LRV, URV and compensation temperature. 24V supply power effect: min.9V/max30V
For 4…20mA current output sensor, voltage has no effect for linearity, LRV, URV and compensation temperature. |
| >> Dimensions |
1. Lifelong service
Hefei WNK offers lifelong service for our products.
2. Warranty
Warranty of transmitters offered by WNK is 12 months after shipment.
3. Maintenance service
Service response time of customer in Hefei city ≤2hours after received customer repairing notice; service response time of customer in other cities of China≤12hours; service response time of overseas customers ≤24hours.
4. Spare parts and replacement
WNK pays much attention to generality and interchangeability at products design stage. Each transmitter has a sound technical file and tracking number, considerable spare parts are stocked in our factory, so as ensured timely and efficient maintenance.
Q: Are you manufacturer or trading company?
A: We are 13-year professional manufacturer of Pressure/ Level/ Temperature transmitters with 4~20mA, Hart, Profibus & FF protocols, pressure sensors with SPI, I2C, 4~20mA, 0.5~4.5V and etc, and electronic switches. We provide high quality products with high competitive factory price.
Q: What’s your quality control system?
A: As an ISO9001:2015 certificated manufacturer, we have strict quality control system, and each product is done fatigue testing, calibration, temperature compensation before shipment. High quality is guaranteed.
Q: Is there MOQ with your product?
A: We have no MOQ limits, 1pc for testing purpose is acceptable.
Q: Can we print our logo on the products? Do you provide customized products?
A: Yes, we can print your logo on our products; OEM, ODM&customization are welcomed.
Q: What is the warranty of your products? And after-sales service?
A: Our warranty time is 12 months after shipment, and our after-sales dpt will respond with your questions in 24hrs, remote instruction by PC network is always available.
Q: What is lead time of your product?
A: We are factory, our lead time is always within 7 working days for products without customization, but lead time for flange products is a little longer.