Parameters Max weighing: 150kg ( 330Lb ) Resolution: 5g Accuracy: 0.05% rdg+25g Power supply: 5 AAA batteries Operating temperature: -10?~40? Storage temperature: -15? ~50? Temperature fluctuation range: 5?/h Relative humidity: 50-85% Product size: 271*271*74mm Quick start 1. Install 5 AAA batteries in the hand-held device. 2. Place the platform on a firm and level surface. 3. Press the POWERbutton on the hand-held device. 4. Press UNITto select proper unit. 5. Press ZEROto tare the scale. 6. Place the object to be weighed until STABLE appears stable. Read the weight on the LCD. 7. CHARGE: Press ? charge to set value, and then press to start charging. 8. RECOVERY: Press recovery to set value, and then press ?to start recovery. 9. Press RUN/STOPsolenoid valve is instant on (OPEN icon is always on) or off (OPEN icon is always off). 10. Press HOLDto lock the current weight value. Functions Weighing operation: The scale is designed for total weight up to 150Kg. 1. Take out the scale from the package and place the platorm on firm and level surface. 2. Draw out the spiral line of the hand-held device from the side of the scale. 3. Press the POWERbutton on the hand-held device. The buzzer beeps once indicating self-test is finished. 4. Press UNITto switch between Kg , Ozand Lb . 5. Press ZEROto tare the scale. 6. Place the refrigerant tank in the center of the scale platform; zero it again to display the weight of refrigerant. 7. Press HOLDto freeze current display. The displayed weight value will not change with the change of weight on the platform. Packing list LMC-300A refrigerant scale 1 piece Charge valve 1 piece Nylon case 1 piece AAA alkaline battery 5 pieces User manual 1 piece
Shipping & Delivery Information
Our Shipping Promise
At Slickpurchase, we understand how important your purchases are. That's why we take extra care with every package we send. All orders are shipped in double-boxes with full insurance for additional protection, ensuring your items arrive safely.
Processing & Shipping Timeline
- Processing Time: Orders are processed within 3-6 business days
- Domestic Delivery: Typically 6-10 business days
Please note that delivery times are estimates and may vary based on your location, weather conditions, or other unforeseen circumstances.
Shipping Destinations
Slickpurchase currently only ships to the United States.
Shipping Costs
We are pleased to offer free standard shipping on all orders within the United States.
Discreet Packaging
We respect your privacy. All Slickpurchase packages are shipped with complete discreet packaging. The product name, description, sender's name, and any information that hints about the contents are encrypted. Your package will arrive without any indication of what's inside, ensuring your purchase remains confidential.
Signature Requirements
Important Note: All orders valued above $250 will require a signature upon delivery for your protection.
Order Tracking
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Lost or Delayed Shipments
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Additional Security Measures
For your protection, we may contact you for additional order verification of the payment method on certain orders.
Questions or Concerns?
For details on returns and refunds, please refer to our Return Policy page.
For any questions about shipping or delivery, please contact our customer service team at support@slickpurchase.com.




















