supply, installation, commissioning and giving satisfactory test trial of battery operated domestic amr ultrasonic water meter, under 24x7 water supply schemes-2 c ) amr meters 3 item no.:-1 providing, installing and giving satisfactory field testing of domestic battery operated amr water meters with no measurement of air along with manufacturing test certificate and guarantee certificate with battery life of minimum 10 years with gsm / rf technology for communication to server with pc software including 36 months guarantee, etc. complete. 4 1 ) 15mm dia 5 item no.:-2 providing & fixing of pipe fitting coupling / brass union suitable for gi / pvc / pe pipe material for fixing of amr ultrasonic water meter 6 15mm dia 7 for third party inspection 8 item no.: - 3 ball valve brass astm / iso standard with necessary threading suitable for pipe & amr ultrasonic water meters. 9 15mm dia 10 item no.-4: - providing & fixing meter box / chamber of pe / pp material for water meter including all cost of labour etc. completed suitable for size 1 / 2 to 2 size water meter.