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Sf255 Intelligent Cooling Defrost Digital LED Display Temperature Controller
US$39.00-49.00
1 Piece
Product profile
Customized
Non-CustomizedCertification
RoHS, CB, CCC, ISO9001, CEBrand
SfModel NO.
SF-255Display Type
LEDInternal
ExternalControl Type
DigitalType
Temperature ControllerControl Method
Electronic TypeOperating Principle
Compression Refrigeration EquipmentCooling Purpose
Cold StorageMaterial
PlasticPower Supply
230VAC 50/60HzPower Consumption
3W MaxRefrigeration
N.O.10A/250VACFreezing
N.O.16A/250VACDisplay
LED 3 Digits + SignResolution
1 or 0,1°cTemperature Sensor
Ntc, Double Sensors,2m(L)Accuracy
+/- 1cTransport Package
CartonsSpecification
CE / RoHsTrademark
SFOrigin
ChinaHS Code
8418991000Production Capacity
1000 Per WeekKey features
Multi-Function Control: 4 relay outputs control compressor, fan, defrost, and light with configurable modes.
Advanced Defrost Logic: Up to 6 daily defrost cycles with Real Time Clock and holiday/workday settings.
Energy Saving Mode: Day and Night function with two different set points for optimized energy usage.
Multiple Sensor Inputs: Supports up to 4 NTC or PT1000 probes for temperature, defrost, and alarm monitoring.
Network Connectivity: RS485 serial output compatible with ModBUS-RTU for remote monitoring and control.
Comprehensive Certifications: Certified with RoHS, CB, CCC, ISO9001, and CE for global safety and quality standards.
Easy Programmability: Fully configurable via keyboard or HOT KEY programming tool with special parameters.
Company profile

CertifiedBusiness Type: Trading CompanyExport Year: 2007-01-03 CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤2.59h CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR
AI-Powered supplier vetting
SummaryShenzhen Sino-Australia Refrigeration Equipment Co., Ltd. is a China-based limited trading company established in 2005, specializing in refrigeration compressors, units, cold rooms, evaporators, condensers, and related components. The supplier states that it provides one-stop refrigeration solutions, accepts customization, and offers after-sales service. It reports ISO9001-2000 approval and export quality certification, with products exported to multiple international regions. Operational information indicates a factory in Huizhou, more than 10 production lines, six years of R&D engineer experience, and fewer than five quality-control staff. Export activity began in 2007, and the company has self-managed import-export rights. However, the provided information does not substantiate financial credibility or identify specific customer cases, and the after-sales capability is supported mainly by the supplier’s own stated service promise.
Supplier typeThe supplier is explicitly identified as a trading company and a shareholding-system company specializing in the trade of refrigeration compressors, freezing equipment, and air-conditioning components. It also reports a factory location and production lines, indicating supplier information includes both trading and production-related activities, but the registered business type remains Trading Company.
CertificationsThe supplier states that its products passed ISO9001-2000 approval and hold Quality Certification for Export. These are explicit certification claims supporting quality-management and export-compliance capability, although no certificate numbers or validity dates are provided.
After-Sales capabilityThe supplier explicitly promises perfect after-sale service and describes an excellent service working team. This supports the existence of a stated after-sales commitment, but the slices do not provide details on service coverage, response times, warranty terms, or service personnel.
Production capacityThe supplier lists multiple refrigeration products under its own CNAU brand and reports a factory in Huizhou, more than 10 production lines, and fewer than five quality-control staff. These details support established production capability, while the relatively small stated quality-control team may indicate limited quality-control staffing compared with the reported production-line count.
Customization capabilityThe company explicitly states that it provides one-stop refrigeration system solutions and accepts customization. This directly supports customization capability, although the scope, engineering process, minimum order requirements, and customization examples are not specified.
Product Q&A
Q:How many relay outputs does the controller have?
A:
It features 4 relay outputs to control the compressor, fan, defrost, and light, which can be configured for electrical or reverse cycle operation.
Q:Can the defrost cycle be programmed?
A:
Yes, with the optional Real Time Clock, you can program up to 6 daily defrost cycles, divided into holidays and workdays.
Q:What types of temperature sensors are supported?
A:
The controller supports up to 4 NTC or PT1000 probe inputs for temperature control, defrost termination, and condenser alarm signaling.
Q:Is the device compatible with network monitoring?
A:
Yes, it includes an RS485 serial output compatible with ModBUS-RTU to connect to network lines and monitoring units.
Q:What is the power supply requirement?
A:
The power supply is 230V AC at 50/60Hz with a maximum power consumption of 3W.
Send Inquiry
*To:
Shenzhen Sino-Australia Refrigeration Equipment Co., Ltd.
Shenzhen Sino-Australia Refrigeration Equipment Co., Ltd.*Content:
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