supply of set of two different hand held devices(sound level meters). , set of two different hand held devices(sound level meters) as follows. a) digital sound level meter(db) of model sl-1352 of m/s. htc make or its similar along with valid calibration test certificate of 01 year validity period from nabl accredited/ govt. labs as per technical specification details attached at annexure-a. qty/set. = 01 nos. b) sound calibrator- 2 point of model cal-900 of m/s. htc make or its similar along with valid calibration test certificate of 01 yea r validity period from nabl accredited/ govt. labs as per technical specification details attached at annexure-a. qty/set . = 01 nos. note:firm shall quote any one make for the tendered description along with valid authorization, if vendor of fers/bids for more than one make or if the firm mentions, as per tender in their bid(s), their offer will be summarily reje cted. [ warranty period: 12 months after the date of delivery ] ]