supply of oti and wti supply of oti and wti , oti type-b as per telk material specification so-008c/temp.range :20 - 140 deg/accuracy : +/- 1.5% fsd/2spstmercury switches/6m capillary/ 2800 ohm potentiometric transmitter required.model with standard micro-switches are also acceptable. technical data sheets & drawings shall be furnished with the offer. , winding temperature indicatortype-d generally confirming to telk material specification sw 010c. temperature range 30-150 deg c/ accurcay : +/- 1.5% fsd/ 4 nos. spst mercury switches with n.o. contacts/ 6 meter capillary/2800 ohm potentiometric transmitter required. model with standard micro- switches are also acceptable. technical data & draw- ings shall be furnished with the offer. , digital indicator for wti with temp range 30-150 deg c, with 2 nos.4-20 ma output signal , digital indicator for oti with temp range 20-140 deg c with 2 nos. 4-20 ma output signals. => limited