supply of breath alcohol analyzer , electro chemical-fuel cell sensor based breath alcohol analyzer hand held with inbuilt printer (blood alcohol concentrati on measuring equipment) for tower wagon driver testing during sign on/sign off time. measuring equipment shall be from anyone of the following reputed make and functionalities should be as per rdso specification rdso/2015/el/spec/0119, (rev2) dated 15.03.20 18 only. 1. m/s tayaltech (model no.: alpha ; type: fuel cell) 2. m/s preksha enterprises (model no.: narsimha ;type: fuel cell) 3. m/s addsoft technologies [p) ltd. (model no.: addbacms04 ;type: fuel cell) 4. m/s ni global soft (model no.: nigsbacmso1 ; type: fuel c ell) [ warranty period: 30 months after the date of delivery ] ]