This sensor is suitable for any type of Fuel as well as water.

It is Data bus 485 connected

For Wiring of say 4 tanks, it is far easier than individual tanks:

For each tank:

  • 12V+
  • 12V-
  • RS458 A
  • RS485 B

Each of the RS485 Terminals are all joined in a waterproof box and only ONE pair of Data Wires goes to the Digital Switching hub.

The power cables are all common as well.

IT is CE Approved.

STLPO01 Pressure Sensor uses a high quality piezo-resistive pressure sensor (or flush ceramic sensor). 


It is a differential pressure sensor with the opposing air pressure sensed through a tube that is encased with the wiring. This lifts the natural air pressure measurement to the termination point.


This is a 304 Stainless Steel housing and a 316 Stainless Steel internal sensor which is suitable for:

  • Diesel Tank
  • Petrol Tank
  • Food grade fresh water tank.
  • Waster Water tank
  • Black Water tank.


It measures a range up to 1,000mm deep (or high)  water tank. The Tank can be any volume and ANY shape.


For diesel Fuel the standard range is 1,000/0.85 (for density) = 1170mm high.


Higher tanks are a special order.


Fit this sensor on the outside of the tank where the outlet fitting is at a tee piece OR a drain bung.




It is a voltage output and is better than 1.5% accuracy.


It has an isolated stainless steel diaphragm as signal sensing element. 

This is a quality assembly: 

  • Automatic testing, laser trimming compensated zero 
  • Special sensitivity in wider temperature range 
  • Amplifier circuit is in stainless steel housing, 
  • Transforming sensor signal into standard output signal. 

This sensor, fitted externally, is waterproof and can be submerged through creek crossings.



Purchasing Tank Sensors for Shipping to USA

All our tank sensors can be shipped to USA. Simply login and purchase on line. The prices here are in AUD$. One AU$ = approx US0.68. So AU$100 is US$68

The freight is expensive as we only ship with DHL/Fedex or equal. With volume, the freight becomes more attractive price. This has tracking which is on your invoice. The Thread is G1/4 which is a metric version of a traditional BSP. It is quite easy to buy adapters etc in USA.

The Sensors work perfectly with Victron, but a tank GX 140 is needed. They also work perfectly with Simarine.


Pressure range 

0-1,000mm Water
 0-1,170mm diesel Fuel

Measuring medium 

Fresh Water 

Signal output 


Power supply 

12V DC 



Burst pressure 



(Linearity hysteresis repeatability) 



0.2%F.S ± 0.05% 

Working Temperature 


Storage temperature 


Zero temperature drift 

≤ 0.02%.F.S/°C/year 

Net Weight 


Housing material 

316 Stainless Steel 

Diaphragm material 

Piezo-resistive Flush Ceramic 

Insulate resistance 

>100MΩ @50V 

Response time 


Electronic Wire 

3 Wires 

Electronic connection 

Directly sealed cable IP67 

Pressure connect port 

G1/4” NPT male 

Cable specs 

2m PE cable 

Certificate approving 

CE Certificate 

Water Proof 


Blue & Green 

Signal Output + 


Signal Output - 


Ground Wire

Brand Safiery
Shipping Weight 0.3000kg
Shipping Width 0.200m
Shipping Height 0.150m
Shipping Length 0.200m
Shipping Cubic 0.006000000m3
Unit Of Measure each

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