BOD5 testing — 20°C five-day incubation for wastewater compliance
±0.5°C uniformity, USB export
Refrigerated biochemistry incubators for BOD testing and bacterial culture
BOD / Biochemistry Incubators
Some samples need it colder than the room. A BOD incubator — what many labs call a biochemistry incubator or refrigerated incubator — combines a heating circuit with a compressor cooling circuit, so it holds any setpoint from 5°C to 60°C regardless of what the ambient temperature is doing. That is the entire point: BOD5 bottles at 20°C, bacterial culture at 30°C, and enumerations at 35°C all hold steady through summer. WSHLab SPX biochemistry incubators pair an inverter compressor — low noise and frost-free — with a 304 stainless chamber and a double door: an outer door that seals, and an inner glass door that lets you check the load without dropping the chamber temperature. The touchscreen programmer stores 100 segments of temperature profiles in fixed or program mode, and every run exports to USB as CSV or PDF. Four chamber sizes, 80L to 400L, cover a single BOD5 bench workload to a full water-quality laboratory with dozens of bottles in simultaneous incubation. If your protocol also needs controlled humidity, ask about the MJ mould incubator; if it never goes below ambient, the DHP thermostatic incubator is the simpler machine.
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WSHLAB Biochemistry Incubator
- Model range
- SPX-80 / SPX-150 / SPX-250 / SPX-400
- Capacity options
- 80L · 150L · 250L · 400L
- Temperature range
- 5-60°C, resolution 0.1°C, fluctuation ±0.5°C
- Cooling system
- Inverter compressor, frost-free, low noise
Price on request
TECHNICAL DATA
SPX refrigerated incubator architecture
An inverter compressor and a heating circuit share one 304 stainless chamber, managed by a touchscreen controller that stores 100 program segments and logs the run to USB. The double door keeps the inner glass sealed while the outer door is open, so inspections do not cost the whole chamber its stability.
BOD / Biochemistry Incubators
View ProductWSHLAB Biochemistry Incubator
- Model range
- SPX-80 / SPX-150 / SPX-250 / SPX-400
- Capacity options
- 80L · 150L · 250L · 400L
- Temperature range
- 5-60°C, resolution 0.1°C, fluctuation ±0.5°C
- Cooling system
- Inverter compressor, frost-free, low noise
- Controller
- Touchscreen programmer, 100 segments, fixed/program modes, USB CSV/PDF export
- Chamber
- 304 stainless steel interior, rounded corners, adjustable removable shelves
- Door
- Double door: magnetic-sealed outer door with inner glass observation window
- Standard BOD5 condition
- 20°C ±1°C, five-day incubation, logged
- Humidity control
- Optional; see MJ mould incubator for full 40-95% RH control
- Shelf load
- Bottle-rack geometry accommodated in 150L and larger chambers
- Power
- 220V/50Hz standard; 110V/60Hz on request
- Certification
- CE, ISO 9001, RoHS
- Capacity
- 150L · 250L · 400L · 80L
- Voltage
- 220V/50Hz
- Chamber Material
- 304 Stainless
- Control Type
- Touchscreen
- Temperature Range
- 5~60°C
- Humidity Control
- Optional
- Lighting Type
- No
Applications
Where our BOD and biochemistry incubators work
One refrigerated platform for water quality, microbiology and shelf studies.
Bacterial culture — 30-37°C incubation with over-temperature alarm
100-segment programmer
Environmental samples — low-temperature holding and psychrotrophic enumeration
5°C floor setpoint
Shelf and stability studies — multi-phase warm/cool profiles
program mode, day/night cycling
PERFORMANCE & SELECTION
What is a BOD incubator?
A BOD incubator is a refrigerated incubator built to hold the 20°C ±1°C environment that the BOD5 test requires — days-long incubation of water samples while bacteria consume the dissolved organics. Because samples sit at or below room temperature, it needs active cooling, not just heating. The same machine doubles as a biochemistry incubator: any constant or programmed temperature between 5°C and 60°C for bacterial culture, mycology prep, enzyme reactions and shelf studies.
- Cools and heats: holds 5–60°C regardless of ambient temperature
- Standard BOD5 conditions: 20°C ±1°C for five-day incubations
- Inverter compressor: low noise, frost-free operation at low setpoints
- Touchscreen programmer: 100 segments, fixed or program mode, USB export
- 304 stainless interior with rounded corners; double door with inner glass
CONFIGURATION & COMPATIBILITY
Refrigerated vs heated-only incubators
If your setpoints never dip below ambient, a heated-only incubator — like the DHP electric thermostatic incubator — is simpler and cheaper to run. The moment a protocol calls for 20°C BOD5 bottles in a 26°C lab, or 4–8°C storage-adjacent work, you need compressor cooling. A cooled incubator holds low setpoints against a warm room, and it also shrugs off ambient swings that would shift a heated-only box.
- Heated-only: RT+5~65°C — fine for routine culture above room temperature
- Refrigerated: 5–60°C — the only choice for BOD5 and low-temperature protocols
- Cooling also stabilises mid-range setpoints against hot ambient swings
- Inverter compressors make modern refrigerated incubators quiet enough for a shared lab
IDENTIFICATION & TRACEABILITY
Clear Product Identification & Specification
Product names, model numbers, SKUs and option identifiers keep quotations, orders and internal records aligned.
- Product and model identification
- Option-specific SKU information
- Consistent quotation specifications
PRODUCT IDENTIFICATIONBOD / Biochemistry Incubators
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- Laboratory equipment
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- Selection
- Specification-led
Traceability
Traceability and documentation
Five-day tests need defensible records — the SPX writes them for you.
- USB CSV/PDF export of incubation history
- Real-time temperature curve on the touchscreen
- Serial-numbered unit with factory hold-test records on file
- RS485 for remote monitoring and LIMS integration
Quality system
Quality system and factory testing
Every SPX runs a multi-day hold at 20°C and a pull-down test before shipping — the two numbers a BOD lab depends on.
ISO 9001 production line, CE conformity, factory test report with every unit
Verified 20°C stability over a simulated five-day BOD run
Cooling pull-down and frost-free verification at 5°C setpoint
Over-temperature alarm and sensor calibration checks
Why WSHLab
Why laboratories standardise on WSHLab BOD incubators
Compressor capacity at Peltier noise levels, a chamber that cleans between studies, and the programmer built for five-day runs.
Inverter compressor: frost-free, low-noise refrigeration to 5°C
Double door with magnetic seal and inner glass window
Touchscreen programmer with 100 segments, fixed and program modes
USB CSV/PDF export of every run for compliance files
304 stainless interior with rounded corners, adjustable removable shelves
OPTIONS & SPECIFICATIONS
BOD / Biochemistry Incubators Options & Specifications
Choose the format that suits your application, workload and handling requirements.
Heating and compressor cooling in one chamber
5–60°C constant temperature, frost-free
Double door with inner glass window
Touchscreen programmer with 100 segments
80L to 400L capacities
| Type | Capacity / Option | Material / Specification | Suitable Application | Storage / Handling |
|---|---|---|---|---|
| Heating and compressor cooling in one chamber | By selected product | Product-specific configuration | Confirm with our team | Follow product guidance |
| 5–60°C constant temperature, frost-free | By selected product | Product-specific configuration | Confirm with our team | Follow product guidance |
| Double door with inner glass window | By selected product | Product-specific configuration | Confirm with our team | Follow product guidance |
| Touchscreen programmer with 100 segments | By selected product | Product-specific configuration | Confirm with our team | Follow product guidance |
| 80L to 400L capacities | By selected product | Product-specific configuration | Confirm with our team | Follow product guidance |
Delivery and site
Delivery, installation and site requirements
A refrigerated incubator needs what any compressor appliance needs: level ground, ventilation clearance and a stable power circuit.
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Benchtop (80L, 150L) or floor-standing (250L, 400L) formats
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20-30 cm ventilation clearance for the condenser
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220V/50Hz standard, 110V/60Hz on request
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Commissioning includes 20°C verification with a reference thermometer
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12-month warranty on the full system including compressor
RECOMMENDATIONS
Related Products
Products frequently compared within this catalog.
Gallery
SPX biochemistry incubator in detail
Double doors, a frost-free inverter compressor and a chamber built for bottle racks.
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QUESTIONS & ANSWERS
BOD / Biochemistry Incubators: frequently asked questions
The questions buyers ask most often when specifying BOD / Biochemistry Incubators, answered by our technical team.
What temperature range does the SPX biochemistry incubator cover?
5–60°C with heating and compressor cooling in one chamber. Fluctuation is ±0.5°C and resolution 0.1°C, so both BOD5 conditions at 20°C and bacterial culture at 35°C hold steadily.
Does it have refrigeration, or is it heated only?
Refrigerated — an inverter compressor cools below ambient, frost-free and low-noise. If you only incubate above room temperature, the DHP heated-only thermostatic incubator is a simpler choice.
What sizes are available?
80L, 150L, 250L and 400L. All four share the touchscreen programmer, 304 stainless interior and double-door glass window; larger chambers add shelf count for bottle racks.
Is humidity control available?
Optional on the SPX. If precise 40–95% RH control is central to your protocol — for example fungal culture — the MJ mould incubator controls both variables as standard.
Touchscreen or digital control?
Touchscreen standard on every SPX: 100-segment programming, fixed and program modes, real-time curves and USB CSV/PDF export. A digital LED version is available for budget installations.
Get a quotation
Request your BOD incubator quotation
Tell us your bottle or flask count and your setpoints — we will size the right SPX chamber, quote it with the humidity option if you need it, and include a commissioning verification plan.