Tender For wireless long range hooter safely device with status feedback system & red and green signaling system (as p er technical specification attached) product offered: supply and installation complete set of wireless long range hooter safety device with status feedback system & red and green signaling system. rdso specification- gang / worksite remote control hooter (no. tm/sm/31 8 dated 21.05.2008)(first revision of 2021) (rdso spec. document attached) [ warranty period: 30 months after the date of delivery ]