Petrochemical 250MPa IP65 Water Pump 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
Pressure Range -0.1~250MPa Max. Working Pressure 250MPa
Lora Frequency 433MHz, 470MHz, 868MHz, 915MHz, 923MHz Response Time 10ms
Protection IP65 Ambient Temperature -20~60°C
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IP65 Water Pump Pressure Switch


250MPa Water Pump Pressure Switch


Petrochemical Water Pump Pressure Switch

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Product Description

Lora Pressure Sensor Digital Water Pump Pressure Switch




4-bit LED display, low power, high speed data acquisition

Lora/Lorawan/NB-iot for wireless network. remote reading and control

19000 mAh Li battery for long time power consumption

Data collecting interval 5 miniutes, Data transmitting interval 30 minutes

High sensitivity, high precision, no data delay

Wireless pressure sensor, temperature sensor and depth sensor are available



Measurement Range -0.1~250MPa
Pressure type Gauge, absolute
Lora/Lorawan frequency 430MHz, 470MHz, 868MHz, 915MHz, 923MHz
Display 4-digit LED display
Accuracy (%FS) ±0.25% ±0.5%
Nonlinearity (%FS) ≤0.2 ≤0.5
Hysteresis (%FS) ≤0.2 ≤0.5
Repetition (%FS) ≤0.2 ≤0.5
Stability ≤0.25
Temperature Error- Zero (%FS/℃) ≤0.1
Temperature Error –Span (%FS) ≤0.02
Ambient temperature -20℃~60℃
Battery 19000mAh Li battery
Overload (%) 200
Life >9 Millions pressure cycles
Load impedance(Ω) ≤750
Response time (ms) ≤0.1
Measuring material Compatible with 316L
Diaphragm material 316L or ceramic
Connector material 304, 316, Titan, Polytef
Pressure port M20×1.5 G1/2, G1/4, 1/4 NPT or customize
Protection IP65



1. Petrochemical power

2. Hydraulic / pneumatic system

3. Energy and water treatment system

4. Automation equipment

5. Industrial process control





Q:Why choose us?

A:high accuracy high efficiency high quality


Q: Are you trading company or manufacturer ?

A: We are factory.


Q: How long is your delivery time?

A: we have it in stock, if you place a order, we will deliver it promptly