... and anti-attack 3.Export to many countries 4.OEM 5.CE,ISO14001 General Introduction Remote ... of inside batteries.3. Power by 3 pieces of AAA alkaline batteries and automatically close valve when change batteries.4. Compact size ... LCD display, left entrance, G1.6/2.5/4.0FQ-SR---steel shell, LCD display, right entrance ... , G1.6/2.5/4.0FQ-SB---steel shell, LCD display, left/right ...