New Delhi, Aug. 19 -- The Tempsens Instruments IPO, which is worth Rs.650 crore, is set to open for subscription on Thursday, 20 August, and close on Monday, 24 August. The Tempsens Instruments IPO GMP today, or grey market premium, is +175, indicating strong investor interest ahead of the issue.

Tempsens Instruments claims to be India's largest manufacturer of contact and non-contact temperature sensors by revenue, with an estimated 10.5% market share in the temperature sensor segment. According to the F&S Report, the company is also the only Indian manufacturer of non-contact temperature sensors, with around 21.3% market share in FY26.

The thermal engineering and cable solutions company operates 15 manufacturing units globally, includ...