About Hongkong Sensors Product Co. Ltd. - Electric Sensors Supplier in Hong Kong

Hong Kong‑based Hongkong Sensors Product Co. Ltd. lists nine active products across electric sensors, electric components, window films & screens, electric fuses and zinc oxide varistors. The catalogue includes in‑line water temperature sensors, waterproof digital temperature sensors, coolant temperature sensor replacements, thin‑film NTC thermistors, a 10 kΩ glass‑sealed thermistor (HS 9025.19), battery‑pack NTC/PTC thermistors, KTY motor thermistor resistances, PTC resettable fuses and zinc‑oxide varistors.

The product set reflects typical measurement and protection devices used in automotive, HVAC and consumer electronics. The only HS code provided is 9025.19 for the glass‑sealed thermistor, which falls under the measuring‑instrument chapter, while the other items belong to HS chapters for electrical apparatus and components.

Product Range and Specialties of Hongkong Sensors Product Co. Ltd.

The listed temperature sensors are offered as in‑line, waterproof digital and coolant‑replacement types, each designed for liquid‑based environments. Thermistor offerings include thin‑film NTC elements and a 10 kΩ glass‑sealed NTC ceramic with typical tolerance ±1 % and B‑value around 3950 K, as well as battery‑pack NTC/PTC hybrids and KTY motor thermistors used for precise motor temperature monitoring. The PTC resettable fuse provides circuit‑protection reset capability, and the zinc‑oxide varistor supplies surge‑clamping for transient protection.

In the broader industry, temperature sensors of this class usually comply with IEC 60715 and IEC 60068‑2‑14, offering operating ranges from - 40 °C to +150 °C and accuracies of ±0.5 °C. NTC thermistors are commonly supplied in 10 kΩ, 100 kΩ and 1 MΩ values, with glass or epoxy encapsulation for moisture resistance. PTC fuses follow IEC 60269‑2, rated 1 A - 10 A hold current and up to 240 V, while ZnO varistors meet IEC 60267, typically rated 300 V clamping voltage and 100 J energy absorption.

Trade and Export Information - Hongkong Sensors Product Co. Ltd.

Hong Kong serves as a trans‑shipment hub for electronic components, exporting temperature sensors, thermistors, fuses and varistors primarily to Mainland China, Southeast Asia, the European Union and the United States. HS chapter 90 (9025) covers the glass‑sealed thermistor, while temperature sensors and related components fall under HS 8536, fuses under HS 8539 and varistors under HS 8545. Buyers in the automotive and industrial sectors frequently request CE marking, UL certification, RoHS compliance and, for hazardous‑area installations, IECEx approval.

Typical logistics involve anti‑static poly‑bag trays placed in reinforced cartons, palletized for 20‑ft or 40‑ft container loading. Common Incoterms are FOB Hong Kong, with CIF to major European or North‑American ports offered on request. Export documentation usually includes a commercial invoice, packing list, certificate of origin and, where required, test reports confirming IEC conformity.

Sourcing from Hongkong Sensors Product Co. Ltd. - Buyer Guidance

When sourcing from Hongkong Sensors, buyers should request full datasheets, IEC test reports (e.g., IEC 60715 for sensors, IEC 60269 for fuses) and material safety data sheets for the zinc‑oxide varistor. Verification of glass‑sealed thermistor specifications - resistance at 25 °C, tolerance, B‑value - and confirmation of CE or UL certificates help confirm compliance with downstream regulations.

MOQ and lead times vary by product; standard thermistor orders often start at 5 000 units with a 4 - 6 week production cycle, while fuses and varistors may be ordered in smaller batches but still require a minimum pallet quantity for container shipment. Buyers are advised to confirm packaging details, labeling requirements and any required third‑party inspection before finalizing the order.

What temperature range do the water temperature sensors cover?

The in‑line and waterproof digital temperature sensors are specified for - 40 °C to +150 °C operation, with typical accuracy of ±0.5 °C and response time under one second.

Which standards apply to the 10 kΩ glass‑sealed thermistor (HS 9025.19)?

The thermistor complies with IEC 60715 for temperature‑sensor performance and IEC 60068‑2‑14 for environmental testing; manufacturers usually provide a test report showing resistance at 25 °C, ±1 % tolerance and a B‑value near 3950 K.

Are the PTC resettable fuses suitable for automotive applications?

PTC circuit‑protection devices are commonly rated 1 A to 10 A hold current and up to 240 V, meeting IEC 60269‑2 requirements; buyers should request the IEC‑certified performance curve and temperature‑trip data for automotive use.

What documentation should a buyer request for the zinc‑oxide varistor?

Buyers typically ask for an IEC 60267 test report, a material safety data sheet (MSDS) for the ZnO ceramic, and CE or UL conformity certificates that confirm the varistor’s clamping voltage and energy rating.

How are the products packaged for international shipment?

Sensors and thermistors are packed in anti‑static poly‑bag trays, placed in reinforced cartons; bulk orders for fuses and varistors are palletized and loaded into 20‑ft or 40‑ft containers with moisture‑resistant liners.

Which Incoterms does Hongkong Sensors commonly use?

The supplier lists FOB Hong Kong as the standard term, allowing buyers to arrange freight; CIF to major ports in Europe or North America is also offered on request.

What is the typical lead time for a new order of thermistors?

Standard production and quality‑inspection cycles are 4 - 6 weeks from order confirmation, extending if custom specifications or additional certifications are required.

Can the supplier provide samples before a full order?

Yes, sample quantities such as 100 pieces of thermistor or 50 units of fuse can be supplied with accompanying test data, subject to the buyer covering shipping costs.