Founded in 1986 we, A. S. Controls pvt. Ltd. rank among the prominent Creators, Providers, And overseas traders of electronics controllers & ammonia/freon regulators and valve systems. We strive to deliver everything the items marketed within the framework of the brand identity subzero and castle. Subzero range includes temperature, Humidity controllers/indicators & process temperature controllers scanners, Data loggers, Pressure controllers/scanners, Deep freezer controllers, Cold room controllers, Chiller controllers, Freezer controller line voltage monitors, To name few. These items are crafted to be developed utilizing top-tier foundational resources and innovative technology in complete adherence at the utmost level quality guidelines and benchmarks. Additionally, The offered collection is valued owing to its reliable resilience superior performance as well as remarkable effectiveness Our team diligently verifies the complete array on different characteristics to maintain its authenticity throughout the designing process. Also under brand name castle, We present ammonia valves & controls, Ammonia liquid level indicator/controller, Ammonia leak detector, Water flow switch, Accessories for cold room doors, Freon valves & controls, Products within this spectrum incorporates ball spherical valve, Regulating valve hand shut off valve, Check valve nrv, Expansion valves amongst few of industrial refrigeration equipments.

Our Story

Company Introduction

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Company Overview

Learn about our journey from a startup to a global leader in smart security solutions

Company Timeline

1986

Founded

Started as a small team of security technology enthusiasts in Shenzhen

2026

Global Expansion

Expanded operations internationally and established a strong presence in key global markets, marking a significant milestone in our company's growth and commitment to delivering quality solutions worldwide.

Key Facts

Team Size
N/A

Skilled professionals across R&D, manufacturing, and support

Annual Turnover
₹10 Crore – ₹25 Crore

Consistent growth with strong financial performance

Export Markets
1 Country

Worldwide presence with dedicated regional support

Manufacturing Excellence

50,000m²
Factory Area
12
Production Lines

State-of-the-art manufacturing facility with automated production lines and strict quality control processes.