SA-801 reverse Alarms

87-112@1m (WIDE BRACKET)Takes the guesswork out of sound pressure level (SPL) selection. Ideal for vehicles or machines working in areas with widely differing ambient noise levels, where a fixed volume reversing alarm will be either too quiet in loud environments (VERY HAZARDOUS), or too noisy in quiet environments ( IRRITATING AND A NUISANCE).Ideal for dump trucks, bulldozers, loading shovels and all heavy earth moving machinary Manufacturer Brigade Price ?82.50