Product Specification

YD31-008 Multi-Vehicle Tire Air Pressure Gauge with Inflation Gun Webpage Detail Page (English)

I. Product Specifications (SPECIFICATION)

1. Core Parameter Summary Table

2. General Basic Parameters

II. Product Details (PRODUCT DETAILS)

1. Short-Hose Portability + Efficient Operation, Worry-Free Emergency Maintenance

(1) 330mm Short-Hose Design, No Burden for Storage & Carrying

• Ultimate Portability: With an overall length of only 160mm (including gun body + short hose) and weight of 280g (equivalent to an ordinary mobile phone), it fits easily in jeans pockets, car armrest boxes (space ≤15cm×10cm×8cm), or bicycle tool bags. It is ready for use when going out, with no worries about long-hose tangling or knotting;
• Efficient & No Loss: The short hose shortens the gas transmission path, allowing gas to reach the tire directly during inflation—avoiding tire pressure detection deviations caused by gas residue in long hoses. It is especially suitable for 12V small-displacement on-board air compressors, with inflation efficiency 20% higher than long-hose products, enabling rapid tire pressure replenishment in emergencies and preventing travel delays.

(2) Copper Movement + Large Dial, Accurate Measurement & Easy Reading

• High-Precision Detection: The copper movement has an error of ≤±0.025 bar within the daily 0-15 bar tire pressure range. For example, when a car’s standard tire pressure is 2.5 bar, the measurement accuracy far exceeds the industry average, ensuring reliable tire pressure data. This prevents uneven tire wear (a 10% drop in tire pressure shortens tire life by approximately 20%) and increased fuel consumption (a 10% drop in tire pressure increases fuel consumption by approximately 2%);
• Rapid Reading: The 60mm large dial features high-contrast black-background white-scale markings, with clear bar/psi unit divisions. There is no glare in strong light, and values can be identified within 1 second even in dim garages. Both the elderly and beginners can operate it easily, with no need to repeatedly check units—lowering the usage threshold.

2. Durable Materials + Multi-Scenario Adaptability, Low Long-Term Usage Costs

(1) Rugged Structure, Suitable for High-Frequency Use

• Impact-Resistant Gun Body: The zinc alloy body can withstand a 1-meter drop onto concrete without deformation or cracking, making it suitable for high-frequency use scenarios like community repair stations and car beauty shops. Its service life is 3 times that of plastic gun bodies, reducing tool replacement costs;
• Durable Sealing: The nozzle’s rubber seal is made of oil-resistant nitrile rubber, maintaining good sealing performance after 500 repeated insertions/removals (no air leakage). No frequent seal replacement is needed, reducing maintenance costs;
• Wear-Resistant Hose: The PVC hose surface has a wear-resistant coating, preventing scratches from friction with other tools during daily storage. It can be cleaned by wiping with a rag if contaminated with oil, requiring simple maintenance with no professional care needed.

(2) Multi-Vehicle + Multi-Air Source, Wide Adaptability

• No Vehicle Restrictions: By replacing the seal (2 spare seals included), the nozzle can adapt to Schrader valves (cars), mixed valves (motorcycles), and Presta valves (bicycles). One tool meets the maintenance needs of multiple vehicles in a family—no need to buy separate tools for different vehicles, saving expenses;
• Easy Air Source Adaptation: The default G1/4" interface connects to on-board air compressors and small household air sources. After interface replacement, it can also adapt to industrial-grade air sources. Whether for home maintenance (e.g., bicycle inflation) or outdoor emergencies (e.g., roadside tire leaks), it can quickly match the air source—no restrictions from air source specifications.

3. Humanized Details + Emergency Features, More Intuitive to Use

(1) Labor-Saving Operation, Easy for One Person to Complete

• Lightweight Design: The 280g lightweight gun body causes no hand fatigue even when measuring and inflating 4 tires continuously, making it easy for female users and the elderly to operate;
• Labor-Saving Switch: The push-type inflation switch requires only 4N of force (equivalent to lifting a 0.4kg object). The inflation process can be paused at any time to prevent tire blowouts from over-inflation, ensuring flexible and safe operation.

(2) Emergency Adaptability, Handling Unexpected Situations

• Usable as a Tire Pressure Gauge Without Air Source: Even without connecting to an air source, it can be used alone as a tire pressure gauge. Quick tire pressure checks before daily commuting help identify abnormalities (e.g., slow leaks) in advance, preventing breakdowns on the road and ensuring travel safety;
• Compact Emergency Storage: The short hose can be attached directly to the gun body for storage, with an overall volume equivalent to a power bank. It fits in the side pocket of a carry-on backpack without taking up space. In case of unexpected tire pressure loss (e.g., punctures), it can be quickly taken out for inflation—no need to wait for rescue, saving time.

III. Application Scenarios (APPLICATION SCENARIOS)

1. Emergency Maintenance for Daily Commuting Car Owners (Core Scenario)

1. Take Out the Tool: Retrieve YD31-008 from the armrest box and connect it directly to the on-board air compressor (no need to arrange long hoses);
2. Rapid Pressure Detection: Align the nozzle with the tire valve, press to seal, and read the dial (1.9 bar within 1 second) to confirm insufficient pressure;
3. Precise Inflation: Press the switch to inflate for 15 seconds, then release to check—tire pressure rises to 2.4 bar, so stop inflation;
4. Store the Tool: Disconnect the air source, attach the short hose to the gun body, and place it back in the armrest box. The entire process takes less than 1 minute.
   Result: No detour to a repair shop is needed, preventing lateness during morning rush hour. The short-hose design fits perfectly in the narrow armrest box. Precise pressure measurement ensures the tire stays within the safe pressure range, reducing fuel consumption and tire wear, and extending tire service life.

2. Short-Distance Cycling Maintenance for Bicycle Enthusiasts (Scenario 2)

1. Replace the Interface: Use a dedicated wrench to replace YD31-008’s G1/4" interface with a G3/8" one, then connect it to the mini air compressor;
2. Tire Pressure Detection: Adapt the nozzle to the bicycle’s Presta valve, press to seal, and read the current pressure (6.5 bar) to confirm the need for inflation;
3. Precise Inflation: Press the switch to inflate slowly, releasing every 5 seconds to check pressure—gradually increase to 8 bar (preventing high-pressure blowouts);
4. Carry-On Storage: Disconnect the air source, place the tool in the backpack’s side pocket—no rattling during the ride, so riding experience is not affected.
   Result: It solves the problem of traditional long-hose tools being unable to fit in backpacks, enabling emergency tire pressure maintenance during rides. It avoids reduced riding efficiency or tire blowouts caused by insufficient pressure, ensuring cycling safety.

3. Multi-Vehicle Service at Community Repair Stations (Scenario 3)

1. Batch Preparation: Connect multiple YD31-008 units to the workstation air source, placing them neatly on the tool cart shelf to adapt to different vehicles;
2. Rapid Service: Measure and inflate cars to 2.5 bar, motorcycles to 2.2 bar, and bicycles to 9 bar—no tool replacement needed, and single-tire pressure detection takes within 10 seconds;
3. Convenient Storage: After service, place tools back on the cart directly. The short-hose design prevents tangling between tools, saving storage time.
   Result: One tool replaces multiple sets of equipment, reducing tool procurement costs. Service efficiency increases by 60%, and the lightweight design reduces staff hand fatigue—adapting to high-frequency multi-vehicle service scenarios and improving user satisfaction.

IV. Frequently Asked Questions (FAQ)

Q1: The short hose can’t reach the valve of the vehicle’s inner tire. How to solve this?

1. Accessory Expansion: Contact the supplier to purchase a dedicated hose extension adapter (optional lengths: 500mm/1000mm). Connect the adapter between the nozzle and valve to extend the operating distance without affecting measurement accuracy;
2. Operation Adjustment: Slightly turn the vehicle (e.g., turn the steering wheel outward) to face the inner tire’s valve outward. Most family cars allow easy access to the valve after steering—no additional accessories needed, and the operation is simple.

Q2: There is a deviation between the measured tire pressure and that of professional equipment in repair shops. Is this a product accuracy issue?

1. Operation Correction: Before measurement, ensure the nozzle is tightly sealed with the valve (press until no air leakage sound is heard)—loose sealing causes low readings. It is recommended to measure pressure twice continuously and take the average (normal deviation ≤±0.1 bar) to avoid single-operation errors;
2. Calibration Suggestion: If the deviation exceeds ±0.2 bar, contact the manufacturer or a professional organization for calibration (the product supports free calibration once within 1 year). The copper movement can restore accuracy after calibration—no need to replace the equipment, reducing maintenance costs.

Q3: After long-term use, the nozzle’s seal ages and leaks air. How to replace it?

1. Accessory Preparation: Purchase original compatible rubber seals (it is recommended to buy 5-10 at a time for spares). Specifications: 8mm diameter, 3mm thickness—compatible with most valves;
2. Replacement Steps: ①Gently pry out the old seal in the nozzle with a small screwdriver; ②Place the new seal into the nozzle groove and press it with your finger until fully fitted; ③After installation, test the sealing effect (align with the valve and press—no air leakage sound means normal use);
3. Maintenance Suggestion: Check the seal after every 30 uses. Replace it promptly if deformation or cracks are found to avoid tire pressure detection deviations caused by poor sealing, ensuring accurate measurement data.

Q4: When used outdoors at low temperatures (-25℃), will the hose harden and the pointer jam?

1. Hose Protection: The PVC hose uses a low-temperature-resistant formula, remaining flexible at -25℃ for normal bending. If the hose surface freezes, thaw it with warm water before use to prevent poor interface sealing caused by freezing (which affects measurement accuracy);
2. Pointer Protection: The lubricating grease in the movement is a -30℃ low-temperature-resistant type—it does not solidify at low temperatures, ensuring smooth pointer rotation. Before use, press the switch 3-5 times without load to preheat the movement via frictional heat, ensuring accurate readings and avoiding temporary jamming caused by low temperatures.