supply of 1. installation and commissioning of gps based personnel tracking device ( ptd) including 4g/5g network sim card 2.quarterly cost per device for sms ,voice and data charges ,map subscription charges and all other recurring charges of gps based personal tracking device (ptd) including sim card1. installation and commissioning of gps based personnel tracking device ( ptd) including 4g/5g network sim card 2.quarterly cost per device for sms ,voice and data charges ,map subscription charges and all other recurring charges of gps based personal tracking device (ptd) including sim card,installation and commissioning of gps based personnel tracking device ( ptd) including 4g/ 5g network sim card with 03 years warranty for regular use of patrolmen, keyman and usfd operators und er howrah division having specification as per rly board l/no. 2017/track-1/29/8 dated 16.01.2018. as per attached annexure. [ warranty period: 36 months after the date of delivery ] ] , quarterly cost per device for sms ,voice and data charges ,map subscription charges and all other recurring charges of gps based personal tracking device (ptd) including sim card with 03 years warr anty having specification as per rly board l/no. 2017/track-1/29/8 dated 16.01.2018. these charges to be paid quarterly per device from the date of commissioning. (total no. of device: 500 nos. , total time perio d: 3 years i.e 12 quarters, total quantity for quarterly billing: 500 * 12 = 6000 nos. ) tenderers shall quote quarterly cost per device towards sms ,voice and data charges ,map subscription charges and all other rec urring charges.as per attached annexure. [ warranty period: 36 months after the date of delivery ] ]