This is the perfect way to test when your LPS  is getting low and need to refill. 

The compact design allows you to store it anywhere and lets you reliably check gas bottle levels in a safe and convenient way. 

Features

• Small and lightweight, easy to stow away
• Provides a reliable measurement of gas level in propane and butane tanks
• Ideal for use RVing, camping, boating or at home
• For use on steel and aluminium gas bottles 200 – 350 mm in diameter
• Suitable for standard propane or butane gas bottles
• Easy to use, with green and red LED lights to indicate gas levels
• Batteries included
• Net weight of 0.03kg
• 113mm long 16mm wide