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Built on SHISHUO's dehumidification, ultrasonic humidification, and refrigeration platforms, our floor-standing constant temperature and humidity units integrate all four functions in one cabinet. They are configured by room size, heat load, and target conditions; the four configurations below show the typical range. (Specific model codes are assigned per project specification.)
Series
Capacity & Application
Cooling capacity: 3–68 kW. Holds ±1°C and ±5% RH with integrated cooling, heating, dehumidification, and humidification in one floor-standing cabinet. Powder-coated corrosion-resistant shell, rated for 24/7 operation. Models: DXHW-3 to DXHW-70.
Series
Capacity & Application
Humidification: 6–40 kg/h; dehumidification: 90–480 L/day. Integrated UV sterilization and negative-ion air purification. 1.2 mm cold-rolled steel cabinet, 7-inch touchscreen, RS-485 remote monitoring. Models: DXSL-90 to DXSL-480.
Series
Capacity & Application
Humidification: 3–5 kg/h; dehumidification: 40–60 L/day. Single-room combo unit with hydroxyl-ion and negative-ion air purification, multi-speed DC brushless fan, and RS-485 interface. Covers up to 60 m². Model: DXSL-60.
Series
Capacity & Application
Cooling capacity: 3–68 kW. Ceiling-ducted configuration integrating cooling, heating, dehumidifying, and humidifying with zero floor footprint. Touch control interface and industrial-grade component protection. Models: DXHW-3 to DXHW-70.
• GDH and GDH-CE Dehumidifiers (38–1,440 L/day) plus ROD Rotary Desiccant — standalone moisture removal
• UH-DS Ultrasonic Humidifiers (2–30 kg/h) — standalone humidification
• SSPAC Portable Air Conditioners (2,700–5,000 W) — directional spot cooling
Send us your greenhouse dimensions, cultivation stage, target humidity, and operating temperature. Our engineering team will recommend the right SHISHUO model and capacity.
Request Sizing Download Catalog amy@shishuodehu.comSwitch between the tabs below to learn more. Each tab links to a dedicated page.
It is an air conditioner that holds both temperature and humidity to a setpoint at the same time — a constant temperature and humidity unit. Unlike a comfort AC, which only removes moisture incidentally while cooling, it actively dehumidifies when the room is too humid and humidifies when it is too dry, while also cooling or heating to hold the temperature. The result is a stable, controlled climate held to a tight tolerance, typically ±1°C and ±5% RH.
A normal split or central AC controls temperature only and cannot raise humidity or hold RH to a setpoint. A portable air conditioner is a mobile spot cooler — it cools a local area and has no precision humidity control. A floor-standing air conditioner with humidity control integrates dehumidification, humidification, cooling, and heating in one fixed cabinet and holds both temperature and humidity to spec. They solve different problems: spot cooling vs precision climate control.
Yes — that is the defining feature. The unit dehumidifies when humidity is above the setpoint and humidifies when it is below, so it holds the target RH in both directions, across seasons. A standard AC and a standalone dehumidifier can only remove moisture; this unit also adds it, under unified control with the temperature.
Standard configurations hold approximately ±1°C on temperature and ±5% RH on humidity, across a controllable range of roughly 18–30°C and 40–70% RH. Tighter tolerances are available on specification — tell us the required band and stability at the inquiry stage and we configure the control system and component staging to match.
Floor-standing (floor-mounted) is the industry standard form factor for precision temperature-and-humidity units because the cabinet houses the larger compressor, dehumidification coil, humidifier, and heater needed for full four-function control. Wall-split and portable units lack the capacity and integrated components to hold both setpoints. Where the condenser must sit outside the room, the unit splits into a floor-standing indoor unit and an outdoor unit.
Any environment where both temperature and humidity must stay within a tight band: electronics and semiconductor production (ESD and corrosion control), laboratories and metrology/calibration rooms, pharmaceutical and chemical process and storage areas, cleanrooms, tobacco/cigar and specialty food aging, and archive/museum/precision storage. These need coordinated control that a comfort AC plus a separate dehumidifier cannot provide.
Yes. SHISHUO is a manufacturer and configures each unit to the project — capacity staging, integrated or split configuration, control and logging, and tolerance band. We support OEM (your branding on our hardware) and ODM (modified hardware) for cleanroom and lab contractors, facility builders, and distributors. Process follows our catalog 6-step flow from requirement analysis through testing and shipping.
Standard units run on 220V/50Hz and 380V three-phase; 110V/60Hz and 240V/50Hz are available on ODM specification. We are an export manufacturer and ship internationally — contact us with your room conditions, target temperature and humidity band, and destination market for a configured recommendation, certificates where applicable, and a quotation.
Constant Temperature and Humidity Control: Technical Reference
A constant temperature and humidity unit is a control problem before it is a hardware problem. Temperature and humidity are coupled: cooling air removes moisture, heating air lowers relative humidity, and humidifying adds thermal load. Holding both setpoints therefore requires one controller staging four functions — cooling, heating, dehumidification, humidification — against a single pair of targets. The common alternative, a comfort AC paired with a standalone dehumidifier, fails on coordination: the two machines fight each other across their deadbands, and humidity drifts whenever the cooling load is low. This coupling is why archives, museums, and laboratories specify integrated units; see the museum climate control application page for the preservation-side reasoning.
Integrated vs. Split Configuration
In the integrated configuration, all components sit in one floor-standing cabinet inside or beside the conditioned room — the simplest installation where compressor heat rejection is acceptable. Where the room cannot absorb condenser heat or noise (small labs, instrument rooms, occupied studios), the split configuration places the condenser outdoors, as with a conventional split AC. Server and IT rooms with high sensible heat loads are a related case; the data center cooling and humidity control page covers that load profile.
Specifying the Tolerance Band
The standard band is ±1°C and ±5% RH across 18–30°C and 40–70% RH. Metrology and calibration rooms typically reference 20°C / 50% RH; electronics production targets 40–60% RH for ESD control; storage and aging rooms run high-RH setpoints. A tighter band than standard is a specification-stage decision — it affects sensor grade, component staging, and controller tuning — so it should be stated in the inquiry rather than retrofitted. Project-level configuration is handled through our OEM/ODM process.
Manufacturing Basis
DXHW and DXSL units are built on our refrigeration, dehumidification, and ultrasonic humidification platforms at the Jiaxing production base, and each unit is functionally tested — including both setpoint directions — before export crating. For a configuration against your room size, heat load, and target band, contact SHISHUO Engineering.
Configuration Matrix by Scenario
Step up cooling and dehumidification stages for high internal heat loads, add capacity for high air exchange, and specify any tolerance tighter than ±1°C / ±5% RH at the inquiry stage.
| Scenario | Typical Size | Control Target | Recommended Configuration |
| Small precision room / lab / instrument room | Up to 30 m² | 18–30°C / 40–70% RH | Compact floor-standing unit (220V) |
| Mid-size lab / electronics workshop | 30–80 m² | ±1°C / ±5% RH | Standard floor-standing unit (220V/380V) |
| Production hall / large controlled space | 80 m²+ | ±1°C / ±5% RH | Large-capacity unit, or multiple units (380V) |
| Condenser must sit outside the room | Any | ±1°C / ±5% RH | Split indoor + outdoor configuration |
| Very high humidity setpoint (storage/aging) | Any | High RH, stable temp | Step up dehumidification + humidification capacity |
We support industrial temperature and humidity control projects with clear specifications, stable equipment, and practical system advice. Share your application details and capacity requirements—our team will respond with a suitable solution and quotation.
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