Ningguo Kingcool Import and Export Co., Ltd is a China Refrigerant Leak Detector manufacturer and one-stop supplier of HVAC and refrigeration parts. We supply portable refrigerant leak detectors and the wider refrigeration accessory range used by service companies, appliance manufacturers, contractors and distributors.
Our business combines capacitor production with the supply of air conditioner, refrigerator, washing machine and refrigeration accessories. For leak detection projects, we focus on practical field use: locating refrigerant loss quickly, supporting R134a, R410A, R22 and related systems, and fitting into routine service and production workflows.
Refrigerant Leak Detector Range We Supply
As a Refrigeration Parts-Refrigerant Leak Detector Manufacturers, we match product configuration to the application, operating limits, interfaces and acceptance criteria defined for each project.
Our current leak detection range is built around the Refrigerant Gas Leak Detector CPU-C, a portable instrument for service technicians and production lines. It uses a 3V DC supply from two AA alkaline batteries, giving field portability without mains power. The detector is positioned for HVAC/R diagnostics, refrigeration assembly checks and after-sales service.
- Portable leak detector: CPU-C hand-held unit for refrigerant gas detection during installation, maintenance and repair.
- Battery-powered operation: 3V DC, 2 AA alkaline batteries, suited to site work where power is not available.
- Refrigerant compatibility: intended for common refrigerants including R134a, R410A, R22 and similar HVAC/R gases.
- Application fit: split and packaged air conditioners, commercial refrigeration, cold rooms, condensing units and appliance service.
Where the Detector Fits in Refrigeration and HVAC Work
Leak detection is a diagnostic step, not a standalone task. A detector is used after pressure testing, during evacuation checks, at brazed joints, flare connections, Schrader ports, condenser and evaporator coils, and around compressors and service valves. The CPU-C is configured for that workflow: switch on, allow the sensor to stabilise, then scan suspect points at close range.
For production environments, the same detector supports end-of-line verification before charging or after assembly. For service companies, it reduces the time spent on repeat call-outs caused by slow refrigerant loss. The instrument is also useful during refrigerant recovery and system recommissioning, where residual gas around fittings can indicate a joint that needs rework.
Technical Points We Confirm Before Supply
Because leak detectors are used across different refrigerants and working conditions, we confirm the operating context before quoting. The table below summarises the main selection variables and how they affect the supplied configuration.
| Selection Variable | Why It Matters | Typical Options |
|---|---|---|
| Refrigerant type | Sensor response differs between HFCs, HCFCs and blends. | R134a, R410A, R22, R404A, R32 |
| Sensitivity requirement | Determines whether the detector suits fine leak tracing or general checks. | Standard service grade; high-sensitivity field grade |
| Power supply | Affects portability and battery logistics. | 2 AA alkaline batteries, 3V DC |
| Operating environment | Temperature, airflow and contamination influence stability. | Indoor service, outdoor condensing units, workshop benches |
| Packaging and branding | Affects retail, distributor and OEM presentation. | Neutral carton, private label, bulk pack |
How We Support Configuration and Integration
We configure the leak detector supply around the customer's service model or production line. For distributors, that usually means a defined model, packaging and quantity per carton. For appliance and refrigeration manufacturers, it means matching the detector to the refrigerants used on the line and the inspection point in the assembly process.
Where the detector is used alongside other refrigeration parts, we can coordinate supply from our wider range, including Refrigeration Parts such as manifold gauges, vacuum pumps and recovery units, so that a service kit arrives complete. Our Air-Conditioner Parts and Refrigerator Parts ranges cover the components most often ordered with leak detection tools.
Quality Control and Acceptance Approach
Our production background is in metalized polypropylene film capacitors, where we operate high-precision slitting and winding equipment and testing equipment. That quality discipline carries into the accessory range we supply: incoming goods are checked against agreed specifications, and finished leak detectors are inspected before packing.
- Functional check of the detector, sensor response and alarm output.
- Visual inspection of housing, probe, battery compartment and controls.
- Battery and accessory completeness check against the order.
- Carton and label verification for distributor or OEM packaging.
Acceptance criteria are agreed at quotation stage. Where a customer requires a specific test or documentation format, we confirm it before production so that the delivered batch matches the approved sample.
Installation, Operation and Maintenance
The CPU-C is a hand-held instrument and does not require line installation. Commissioning is limited to battery insertion, power-on and sensor warm-up. Operators should allow the sensor to stabilise in clean air before scanning, and should keep the probe close to suspect joints without touching refrigerant liquid.
Maintenance is straightforward: replace batteries when the low-power indication appears, keep the sensor and probe free of oil and moisture, and store the unit in its case when not in use. For fleet or distributor customers, we can supply spare sensors and batteries as separate line items so that units stay in service.
Information We Use to Configure Your Solution
To prepare a suitable leak detector proposal, we need the following project inputs. These determine model, packaging and quantity, and help us avoid a mismatch between the detector and the refrigerants or working conditions on site.
- Refrigerants in use: the gases the detector must respond to.
- Application: field service, production line, workshop or distributor resale.
- Quantity and packaging: units per carton, private label or neutral packing.
- Accessory scope: batteries, spare sensors, carry case or service kit contents.
- Documentation: packing list, product label and any agreed inspection record.
- Delivery destination and timing: port, warehouse or project site, and required schedule.
Frequently Asked Questions
What refrigerants can the CPU-C leak detector be used with?
The CPU-C is supplied for common HVAC/R refrigerants including R134a, R410A, R22 and similar gases. We confirm the exact refrigerant list against your application before quoting, because sensor response varies between refrigerant families and blends.
Is the detector suitable for production line use?
Yes. The battery-powered format and hand-held design suit end-of-line checks, service benches and field diagnostics. For production environments, we can discuss packaging, quantity and any inspection record required for incoming acceptance.
Can you supply leak detectors together with other refrigeration parts?
We supply a one-stop range covering refrigeration parts, air conditioner parts and refrigerator parts. Leak detectors can be combined with manifold gauges, vacuum pumps, recovery units and other service items in a single order.
Do you offer private label or custom packaging?
We can discuss neutral cartons, private label and bulk packaging depending on volume and destination. Packaging format is confirmed at quotation stage together with the model and quantity.
What information do you need to quote a leak detector order?
We need the refrigerants in use, application, quantity, packaging preference, accessory scope, documentation requirements and delivery destination. With those inputs we can confirm the model and prepare a quotation.
How are the detectors packed and shipped?
Units are packed with batteries and accessories as agreed, then cartoned for export. We confirm carton dimensions, quantity per carton and shipping marks before dispatch so that the shipment matches your receiving requirements.
