GPI 01A12LM digital fuel flow meter 
Model: 113255-12 "Look for the red label"
1 inch BSP(F) ports
Performance:
21 bar (300 psi)
10 to 100 lpm 
Features:
Accurate to +/- 5% of reading
-10 to+54 degrees C temperature range
Displays cumulative total and batch total
Choose gallons or litres measurement on the display
Non-adjustable factory preset calibration for petrol, diesel and kerosene
Lightweight, accurate and reliable
Rugged aluminium housing
Turbine design
Sealed electronic circuit
Powered by 2 x AAA batteries (supplied)
Easy to replace batteries
Materials:
Aluminium housing
Ceramic bearings
Tungsten carbide shaft
Nylon rotor
Ferrite signal generators
316 stainless steel rings
Applications:
Petrol
Gasoline
Kerosene
Diesel
Note:
Suitable for pump or gravity fed systems within 10 to 100 lpm flow range

Applications include:
Petrol 
Gasoline (up to 15% alcohol blends such as E15)
Diesel
Biodiesel (B100)
Biodiesel blends (to 20% biodiesel such as B20)
Kerosene

Not suitable for:
Water
Chemicals
Aircraft fuel