testo 549 Entry-Level Digital Manifold for Refrigeration Systems

Product Introduction

The testo 549 digital manifold revolutionizes refrigeration system maintenance by replacing cumbersome analog gauges with intelligent digital technology. Designed for entry-level users, it supports 60 common refrigerants and integrates temperature measurement with automatic superheating/subcooling calculations, eliminating manual errors. With dual pressure sensors and external probe connections, this 2-way manifold streamlines diagnostics for refrigeration systems and heat pumps, combining accuracy with user-friendly operation.

Product Features

• Comprehensive Measurement Capabilities:
• Pressure Sensing: Dual temperature-compensated sensors for high/low pressure readings, with automatic calculation of evaporating/condensing temperatures.
• Temperature Range: -50 to 150°C with ±0.5°C accuracy and 0.1°C resolution.
• Superheating/Subcooling: Calculates in real time when paired with optional clamp probes (2 x NTC plug-in connections).
• Refrigerant Versatility:
• Pre-programmed with 60 standard refrigerants, suitable for most commercial and residential systems.
• Leakage Testing:
• Performs temperature-compensated leakage tests by comparing initial and final system pressures, displaying differences instantly.
• Heat Pump Mode:
• Automatic switching eliminates the need to reposition refrigerant hoses, enhancing efficiency during heat pump diagnostics.
• Portable & Durable Design:
• Weighs 1060g for handheld use, with a rugged build for field reliability.

Technical Specifications

Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of  measuring instruments , located in China xi’an City. Since 2008, Xi'an Kacise focused on the development and production of pressure, level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical and management personnel, through efforts of our entire staff, we have become a professional measuring instrument manufacturer and solution provider. And we are continuously trying to improve product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE, intrinsic safety explosion-proof and isolated safety explosion-proof certificates, etc. which ensure that our products comply with international standards.

Kacise sensors have already been exported to America, Spain, Australia, Chile and 20 other countries and regions, and received many favorable feedbacks. Our overseas distributers are also increasing. We regard “reasonable prices, efficient production time and good after-sales service” as our tenet, and hope to cooperate with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices, and provides industry-leading customer service. We personally get to know each of our customers, and we know how to discover the most valuable part of our business , to help others achieve their goals.