Negative Air Conditioner 24v 20mA Pressure Switch

Place of Origin China
Brand Name Sier
Certification CE,RoHS
Model Number SPK21
Minimum Order Quantity 1piece
Packaging Details Carton
Delivery Time 7days
Supply Ability 5000 pieces each month
Product Details
Max. Voltage 5v 12v 24v Output 4-20mA(2 Wires)/0-5V/0-10V/0.5-4.5V
Accuracy ±0.5 %FS ±1 %FS Working Temperature -40~+125°C
Matierials Stainless Steel Max. Current 20mA
High Light

100kpa Pressure Switch


IP65 Pressure Switch


DIN43650 Pressure Switch

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Product Description

Product Introduction
SPK21 12v 24v Negative Low Air Conditioner Pressure Sensitive Controller Switch adopts all-stainless steel structure. The pressure sensing components are automatically tested by computer. The laser calibration process compensates the zero point and temperature performance over a wide temperature range, which enhances the long-term stability of the transmitter in industrial environments. It adopts laser welding technology, safe and leak-free.


Product Features
♦ Advanced temperature digital compensation, wide operating temperature range
♦ Stainless steel structure, and good medium compatibility
♦ High-precision, high-frequency response, and long-term stability


Applicable Scope
♦ Industrial process testing and control
♦ Automatic testing system
♦ Industrial machinery manufacturing
♦ Hydraulic and pneumatic control system
♦ Pumping station and water treatment system


Standard Range
Pressure Type: gauge pressure, absolute pressure
Pressure Range: -100kpa to 0 kpa to 20kpa 40 kpa 60Mpa


Technical Index
Signal Output: 4~20 mA 0.5~4.5V 0~5V 0~10V
Signal Line Specification: 2 Wire 3 Wire 3 Wire 3 Wire
Supply Voltage: 9~30VDC 5VDC 9~30VDC 15~30VDC
Accuracy: ±0.5 %FS ±1 %FS
Zero temperature drift: ±0.02 %FS/℃
Sensitivity temperature drift: ±0.02 %FS/℃
Longterm Stability (1 Year) :±0.1 %FS
Frequency Response (-3dB) : 3.2kHz
Compensated Temperature: -20~+85°C
Working Temperature: -40~+125℃
Storage Temperature: -40~+125°C
Overload temperature: 200%FS
Burst Pressure: 300%FS
Mechanical Vibration: ±20g
Impact (11ms): 100g
Environmental Protection: IP65
Wetted parts: 17-4PH
Electrical connection: Direct lead or Hirschmann(DIN43650), Watertight Connector(IP68)
Pressure connection: M20*1.5 G1/4 npt1/4



Q: Do you accept small orders ?
A: Yes. If you are a small retailer or corporation, we would absolutely like to grow with you. We look forward to working with you for the long term.


Q: How about the price? Can you make it cheaper ?
A: We will give priority to the interests of our customers. Under the most competitive conditions, we guarantee that our prices are negotiable.


Q: Do you accept Customization ?
A:Yes,we can do OEM and ODM for our customers.


Q: How Can I place an order ?
A:You can place your order directly through Alibaba. You can also send an inquiry to our foreign trade salesman to get detailed information about your order, and we will provide an explanation of the detailed process.