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Shanghai Yiheng Scientific Instrument Co., Ltd.

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BrandYiHeng
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
ModelBPMJ-250F
Control InterfaceDigital Touchscreen
Air CirculationNatural Convection
Temperature Range0–60 °C
Temperature Fluctuation±0.3 °C (High Temp), ±0.5 °C (Low Temp)
Temperature Uniformity±1.5 °C (at 25 °C test point)
Chamber Capacity250 L
Interior MaterialMirror-Finish Stainless Steel
InsulationIntegral Polyurethane Foam
Optional FeaturesUV Germicidal Lamp (254 nm), RS-485 Interface, USB Data Export (U-disk), Printer Output, Multi-Stage Programmable Controller (7 programs × 9 steps, max step duration 5999 min), Independent Over-Temperature Cut-off Alarm
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BrandYiHeng
ModelBPMJ-150T / BPMJ-250T / BPMJ-500T
Control Interface4.3-inch capacitive touch screen
Temperature Range−5 °C to 70 °C
Temperature Fluctuation±0.3 °C (high-temp mode), ±0.5 °C (low-temp mode)
Temperature Uniformity±1.5 °C
Internal Dimensions (W×D×H, mm)500×460×800
Chamber Volume184 L
RefrigerantEco-friendly non-CFC hydrocarbon blend
Air CirculationTriple-speed adjustable centrifugal fan with optimized ducted airflow
UV SterilizationOptional integrated 254 nm UV-C lamp (top-mounted)
SafetyIndependent over-temperature cut-off with audible/visual alarm
Data ConnectivityRS-485 interface and USB data export (optional)
ComplianceDesigned per IEC 61010-1, ISO 13485-aligned manufacturing processes
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BrandYiHeng
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Region ClassificationDomestic (China)
ModelBPMJ-150F
Control MethodMechanical Button Interface
Air CirculationNatural Convection
Temperature Range−5 °C to 70 °C
Temperature Fluctuation±0.3 °C (at high temp), ±0.5 °C (at low temp)
Temperature Uniformity±1.5 °C (measured at 25 °C)
Internal Dimensions (W×D×H)500 mm × 460 mm × 800 mm
Capacity184 L
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BrandYiHeng
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Region of OriginDomestic (China)
ModelMJ-250-II
Control InterfaceDigital Touchscreen
Air CirculationNatural Convection
Temperature Range10–45°C (dry), 15–45°C (with humidification)
Temperature Fluctuation±0.5°C (high-temp setpoints), ±1.0°C (low-temp setpoints)
Temperature Uniformity±1.5°C to ±2.5°C (measured at 25°C reference point)
Humidity Range60–85% RH
Chamber Capacity250 L
Internal ConstructionMirror-finish stainless steel chamber with radius-corner design
PID Temperature ControllerMicroprocessor-based, with timer function
Safety SystemIndependent over-temperature cut-off alarm (optional)
Data OutputRS485 interface or thermal printer port (optional)
DisplayLCD screen with menu-driven navigation
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BrandYiHeng
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelMJ-Series
Price RangeUSD 1,400 – 5,700 (FOB)
Air CirculationNatural Convection
Temperature Control Range0–60 °C
Temperature Fluctuation±0.5 °C (at high setpoints), ±1.0 °C (at low setpoints)
Temperature Uniformity±1.5 °C to ±2.5 °C (measured at 25 °C reference point)
External Dimensions (W×D×H)530 × 560 × 1080 mm
Internal Chamber Dimensions (W×D×H)400 × 350 × 500 mm
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BrandYiheng
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelBPMJ-70F, BPMJ-150F, BPMJ-250F
Price RangeUSD 2,200 – 2,900 (FOB Shanghai)
Control InterfaceDigital Touchscreen LCD
Air CirculationNatural Convection
Temperature Range−5 °C to +70 °C
Temperature Fluctuation±0.3 °C (at high setpoints), ±0.5 °C (at low setpoints)
Temperature Uniformity±1.5 °C (measured at 25 °C reference point)
Humidity ControlNot Available
Chamber Capacity70 L – 250 L (BPMJ-70F / -150F / -250F models)
External DimensionsSee Product Catalog
Internal DimensionsSee Product Catalog
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BrandYiheng
OriginJiangsu, China
Manufacturer TypeDirect Manufacturer
Origin CategoryDomestic (China)
ModelsLRH-150-2B, LRH-100-4B, MJ-150-2B, MJ-100-4B
Price RangeUSD 3,400 – 6,800 (FOB Jiangsu)
Control MethodMechanical Push-Button Interface
Air CirculationNatural Convection
Temperature Range0–60 °C
Temperature Fluctuation±0.5 °C (at both high and low setpoints)
Temperature Uniformity±1 °C (measured at 25 °C reference point)
Chamber ConfigurationDual-chamber (2B) or Quad-chamber (4B)
Interior MaterialMirror-Finish Stainless Steel (AISI 304), Radius-Corner Design
Shelf AdjustabilityYes, stepless vertical positioning
CompressorBrand-name hermetic refrigeration unit with R134a or R600a eco-friendly refrigerant
Temperature ControllerMicroprocessor-based PID controller with digital LCD display, timer function, and over-temperature cut-off (optional)
Fan Speed ControlThree-level manual adjustment
Data OutputOptional RS485 port or thermal printer interface (for temperature logging)
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BrandYiheng
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product CategoryDomestic
ModelMJ Series
Price RangeUSD 1,280 – 5,890
Control InterfaceDigital Touchscreen
Air CirculationNatural Convection
Temperature Range0–60 °C
Temperature Fluctuation±0.5 °C (at high setpoints), ±1.0 °C (at low setpoints)
Temperature Uniformity±1.5 °C to ±2.5 °C (measured at 25 °C reference point)
Humidity Range60–85 % RH
Capacity OptionsSee Technical Brochure
External DimensionsSee Technical Brochure
Internal DimensionsSee Technical Brochure
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