Product Overview

ALP Technology's Benchtop Temperature Humidity Test Chamber is a compact, precision-engineered testing solution designed for evaluating the reliability and performance of electronic components, materials, and small products under controlled temperature and humidity conditions. This benchtop temperature humidity test chamber is ideally suited for laboratories, R&D facilities, and quality assurance departments where space is at a premium but testing requirements remain rigorous. It accurately simulates high temperature, low temperature, constant humidity, and alternating damp-heat environments to help manufacturers identify design weaknesses, verify durability, and ensure product reliability. Equipped with an advanced programmable controller and forced air circulation system, this chamber delivers precise, repeatable test results that comply with National and Military Standards.

Product Features

ALP's Benchtop Temperature Humidity Test Chamber is engineered with compact construction and intelligent features for reliable, efficient operation:

Compact & Space-Saving Design: The benchtop configuration is specifically designed to fit into laboratories with limited space, making it accessible through standard single-door entry while maintaining full performance capabilities. It is equipped with fixable casters for easy mobility and secure positioning.
High Precision Control System: Features a 5.6-inch or 7-inch programmable color touch screen controller with multi-language support (English, Korean, Chinese, Russian, Japanese). It supports both fixed-value and complex multi-segment program operation, with up to 100 patterns and 2000 segments. The controller displays set temperature, actual temperature, total running time, segment residual time, and heating status at a glance.
Reliable Refrigeration & Heating: Uses a world-renowned brand totally enclosed compressor with eco-friendly R404A refrigerant. The temperature control adopts advanced PID algorithm with auto-tuning function, ensuring stable and accurate performance.
Durable Construction: Inner chamber is crafted from SUS304 stainless steel with seamless welded joints for watertight treatment; exterior from galvanized steel plate with spray coating. Insulation uses hard polyurethane foam and glass fiber with sufficient thickness.
Innovative External Humidification System: Differentiated external humidifier ensures stable humidity control and maintains internal cleanliness, with minimized water consumption even during long-term high-humidity tests.
Comprehensive Accessories: Includes a large tempered glass observation window with heating wire to prevent condensation, interior LED lighting, a φ50mm cable port with silicone plug for powering test samples, and adjustable stainless steel shelves.
Communication & Monitoring: Equipped with RS-232, RS-485, USB, and Ethernet communication ports for PC connection and data export. Remote monitoring via smartphone is available as an option.

Applicable Test Standards

ALP's benchtop temperature humidity test chamber is designed to comply with a broad range of internationally recognized testing standards:

IEC 60068-2-1 / GB/T 2423.1: Test A: Cold
IEC 60068-2-2 / GB/T 2423.2: Test B: Dry Heat
IEC 60068-2-78 / GB/T 2423.3: Test Cab: Damp heat, steady state
IEC 60068-2-30: Damp heat, cyclic test
MIL-STD-810: Environmental test methods for military equipment
ISO 16750: Road vehicles – Environmental conditions for electrical/electronic equipment
JIS Z 0202, ASTM D 2247, BS EN 61300-2-48

Technical Specifications

Category	Parameter	25L Model (ALP-TWS-25)	64L Model (ALP-TWS64)
Interior Dimensions	(W × D × H) mm	250 × 300 × 350	400 × 320 × 500
Exterior Dimensions	(W × D × H) mm	Approx. 460 × 700 × 760	Approx. 730 × 1440 × 1180
Temperature	Temperature Range	-40℃ ～ +150℃	-40℃ ～ +150℃
	Temperature Fluctuation	±0.5℃
	Temperature Uniformity	≤2℃
	Temperature Deviation	±2℃
	Heating Rate (Avg, No Load)	1~3℃/min
	Cooling Rate (Avg, No Load)	0.7~1℃/min
Humidity	Humidity Range	20~98% R.H.
	Humidity Fluctuation	±3% R.H.
	Humidity Deviation	±3% R.H.
Structure & Material	Exterior Material	Cold-rolled steel with electrostatic spray coating
	Interior Material	High-quality SUS304 stainless steel
	Cabinet Structure	Front-rear design, left-hinged door
	Test hole	One Φ50mm port on the side
	Pressure Relief / Exhaust	Top-mounted forced exhaust + pneumatic damper
Electrical & Control	Power Supply	AC 380V 50Hz 3-phase
	Controller	7" Weinview touch screen
	Communication Interfaces	RS485, Ethernet, USB
	Display Resolution	0.01℃ for temp, 0.1min for time
	Noise (at 1.5m distance)	≤75 dB
Other Features	Sample Shelves	2 layers, height adjustable
	Humidity Sensing Method	PT100 dry-wet bulb
	Water Refill	Automatic or manual
Key Components	Refrigeration Compressor	French TECUMSEH cascade unit
	Refrigeration Accessories	Danfoss, Castel, Emerson, etc.
	Electrical Components	Schneider, Omron, etc.
Safety Protections	Protection Functions	Overtemp, heater short circuit, compressor overpressure/overload/overtemp, leakage, phase sequence, fan overtemp, water dry-run, fault alarm

FAQ

Q1: What types of products are typically tested in a benchtop temperature humidity test chamber?

A: This chamber is used for reliability and environmental testing of dust-free materials, electronic components, small electronic products, military parts, and materials requiring controlled temperature and humidity conditions.

Q2: What is the advantage of the benchtop design?

A: The compact design minimizes footprint and allows placement in laboratories with limited space. It can be moved easily through standard single-door entry and positioned on a dedicated stand for convenient operation.

Q3: Can I power my test sample inside the chamber?

A: Yes. The chamber includes a standard φ50mm cable port with silicone plug, allowing you to safely route cables for powering and monitoring your device under test.

Q4: Can I monitor tests remotely?

A: Yes. The chamber is equipped with RS-232, RS-485, USB, and Ethernet interfaces for PC connection and data export. Remote monitoring via smartphone is available with optional accessories.

Q5: Can ALP customize the chamber size or features?

A: Yes. ALP's greatest advantage is the ability to customize a variety of non-standard test chambers according to specific customer requirements, including dimensions, temperature/humidity range, and optional accessories.

Why Choose ALP Technology?

ALP Technology (T&M) Ltd is a specialized factory with over 20 years of experience in manufacturing and exporting environmental test chambers. We offer a comprehensive range of solutions, including temperature/humidity, thermal shock, salt spray, sand/dust, UV, and walk-in chambers. Our greatest strength lies in our ability to customize non-standard test chambers according to your specific requirements, from design and production to installation and maintenance. With clients spanning government labs, Fortune 500 companies, and leading research organizations across 50+ countries, ALP delivers reliable, precise, and cost-effective testing solutions backed by comprehensive warranty and lifelong follow-up services

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