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Shenzhen Justar Precision Instrument Co., Ltd. is a quality-focused, innovative, and diversified testing instrument company integrating production and sales. We have always specialized in the production and sales of safety testing instruments, IP protection test tools, spring impactors, sensors, environmental testing equipment, waterproof testing equipment, gauges, and anti-slip testing equipment. We also act as agents for imported instruments such as FEMTO amplifiers and OPHIR power meters. Striving for excellence, we create products that meet international standards and specifications. Our clients span across industries including electronics and electrical appliances, optoelectronics and communications, machinery manufacturing, plastic and hardware, automotive, and other technology sectors. The company consistently adheres to putting customer needs at the forefront of every stage, from product development to after-sales service. We seek survival through quality and development through integrity, and we are committed to win-win cooperation with domestic and international businesses.

Ultra-low noise current amplifiers, high-speed low-noise current amplifiers, ultra-low noise low-frequency voltage amplifiers, ultra-low noise broadband amplifiers, low-noise logarithmic bandwidth amplifiers, high-speed low-noise GHz amplifiers, lock-in amplifiers, optical choppers, single-photon counters, single-photon detectors, high-voltage amplifiers, IP protection level test tools, IP waterproof testing devices, safety testing instruments, soil moisture sensors, anti-slip testers, pink noise generators, etc.