Gas Banger Gun Bird Scarer Guardian-2 Standard ECO. The Guardian-2 Standard Eco Gas Banger Bird Scarer. Runs on butane or propane gas. Comes with Gas Bottle Connector and Regulator. Mechanical – no battery or power supply needed – simple reliable operation. Programmable bang cycle from every 3 minutes up to every 30 mins, simply adjustable by gas regulator. To increase the frequency of the bangs you increase the flow of gas on the regulator. When the chamber on the gun has reaches pressure it releases the lever that generates the spark to create the explosion. The explosions are always at 120 decibels, (barrel is fixed length). Can protect is 3 to 4 hectares, depending on the type of crop and the terrain. Zinc-plated so that it can withstand bad weather conditions. The Automatic timer PA303213. Is a recommended extra, as it gives night-time on/off control over the hours of operation. Please message us if this listing is showing less qty than you require. Also available to collect in person from our stores subject to availability. You can visit our premises where you can see our vast range of new and used machinery and parts. Opening Times: Monday-Friday 8.00am-4.45pm. Saturday & Sunday: Closed. Agri-Linc, Randalls Farm, Scottlethorpe Road, Edenham, Bourne, Lincs, PE10 0LN. Tel: 01778 591 225. This product is listed in multiple stores and is offered on a first-come-first-served basis.