Ever wonder how a steel plant or a chemical factory knows exactly how hot its furnace is running, without anyone sticking a hand near it? Well, that’s the kind of technology Tempsens Instruments builds. The company is now launching its IPO.
The bidding for the IPO will open on 20th August, 2026. Subscribers can place their bids till the IPO closes on 24th August, 2026.
This IPO has a book-built issue worth ₹650 crore, which is made up of a small fresh issue of 0.32 crore shares, which would raise ₹95 crore. A much bigger section comes through the offer for sale, worth ₹555 crore across 1.85 crore shares. Existing family shareholders are cashing out a sizable part of their stake through the OFS.
The price band of the IPO has been set from ₹285 to ₹300 for each share, and the face value is ₹4. It comes in a lot size of 50 shares.
Retail investors need about ₹15,000 to apply at the top end. The shares are likely to be allotted on 25th August, 2026. If you get a lot, it will be credited to your demat account before the shares hit the stock market on 28th August, 2026. These shares will be listed both on NSE and BSE.
ICICI Securities Ltd is the lead book-running manager of the IPO, while JM Financial Ltd is serving as the joint manager. KFin Technologies is handling the registrar duties.
Tempsens Instruments IPO details
Tempsens has been operating since 1990, establishing itself as a specialist in thermal engineering. The company is associated with designing and manufacturing customised temperature sensing solutions, electrical heating solutions, and specialised cables. It works on the invisible technology that plants largely rely on to monitor heat and manage temperature.
Tempsens is currently India’s largest manufacturer of contact and non-contact temperature sensors in India in terms of revenue. It holds around a 10.5% share of the temperature sensor segment in FY26.
It is also the only Indian manufacturer of non-contact temperature sensors, commanding a 21.3% share of that specific segment. Its product range includes three key verticals.
These products are extensively used across industries like petrochemicals, metal, power, defence, nuclear, glass, plastics, automotive, and pharma.
The global clientele of Tempsens Instruments makes it attractive to investors. Tempsens runs 15 manufacturing units along with its joint ventures and subsidiaries across India, Poland, Germany, Indonesia, South Korea, and the UAE.
The company is backed by 28 distributors that sell its products in more than 80 countries. Tempsens served more than 1,000 unique customers across the Asia Pacific, Africa, the Middle East, Europe, and the Americas between April 2023 and March 2026.
As of 31st March 2026, the company has 83 employees in R&D. This team has innovated products like aerospace-grade cables, fibre optic temperature sensors, and catalyst bed heaters for space applications. Currently, Tempsens holds 12 patents in India and 39 trademark registrations across different locations outside the country.
The manufacturing of its products is backwards-integrated, particularly at its base in Udaipur. The company handles a wide range of tasks ranging from melting alloy and drawing wires to fabrication, assembly, and in-house calibration. As it maintains a high level of control over its operations, it can significantly reduce its dependence on external suppliers.
Most of the units are certified under relevant ISO codes, while its Udaipur temperature calibration centre is accredited by NABL.
The customer base of the company looks well-diversified. The top 10 customers constituted just 18.59% of revenue in FY26. As of 31st March, 2026, the company served more than 3,800 customers.
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Financials
The company’s revenue is also split between two types of businesses.
The growth trajectory of Tempsens Instruments looks impressive.
From the fresh issue, Tempsens would be putting ₹18.13 crore for capital expenses for its electrical heating and specialised cable businesses. ₹55 crore would be used to repay its existing borrowings, and the small leftover amount would be used for general corporate purposes.
Should you apply for this issue?
The market position of Tempsens Instruments is quite unique, but that doesn’t mean the IPO is free from risks. We have weighed the pros and cons below to help you get the full picture.
Pros of investing in Tempsens Instruments
- Category leadership: Tempsens leads a niche category in the Indian market. It is the largest player in temperature sensors in India, and the only domestic manufacturer of non-contact sensors. The high entry barriers in this segment work in its favour.
- Global manufacturing footprint: Currently, Tempsens has 15 manufacturing units across six countries. The numbers speak for the consistent and long-term investment the company made to access international customers.
- In-house R&D: The strong in-house research and development team of the company has come up with fibre optic sensors, aerospace-grade cables, and space-application heaters. It also boasts 12 Indian patents and several trademarks abroad.
- Diversified revenue base: Interestingly, no single customer dominates the revenue share. The company also shows a healthy split between one-time project revenue and recurring MRO business. It’s not exposed to any single client or project cycle.
- Consistent financial growth: Tempsens Instruments recorded growth in profit every year for the last three years straight. At 24.83%, its EBITDA margins are quite healthy, and the company recorded a 21.61% return on capital in FY26.
Cons of investing in Tempsens Instruments
- Fully priced valuation: The issue price at the upper end comes to a post-IPO P/E of roughly 35 times. There’s limited scope for a valuation re-rating on listing.
- Heavy dependence on projects: Around two-thirds of the company’s revenue comes from Projects and OEM work. If there’s a slowdown in customer capex or delay in large products, it would hit the company hard.
- Concentrated end-market exposure: About 41% of the company’s revenue comes from the metal and petrochemical industries. If any of these sectors record a slowdown or regulatory change, the business may suffer a dent.
- Commodity price exposure: Copper and nickel constitute over a quarter of total raw material purchases of the company. A potential rise in commodity prices can affect its margins directly.
- Concentration of suppliers and delays: The top 10 suppliers of the company account for around 40% of purchases. In FY26 alone, the company has logged 270 instances of late delivery charges or extra freight costs. These numbers show that its supply chain isn’t fully protected from disruption.
Conclusion
Tempsens Instruments has built something very different, establishing itself in a dominant position in India. Backed by strong R&D output and a manufacturing footprint across several continents, it enjoys its position in a specialised, high-barrier segment. Over the last three years, the consistent growth in revenue and profit has strengthened its profile.
However, the company’s valuation leaves little cushion, and the business is tightly associated with a few cyclical sectors. Most of the existing shareholders of the company would be exiting.
