Usage method With proper clamp head, clamp the measured optical fiber (bare or tail) tightly into the test area, and then turn on for testing. Product characteristics Relative Optical Power in Digital Display Optical Fiber Portable style, without interrupting optical fibers, can distinguish the direction and frequency of light Adopt the "one-key-through" operation mode to make the operation simple and convenient. Provide appropriate adapters for bare fibers and various tail fibers _Can identify three commonly used signal frequencies, namely 2KHz, 1KHz, 270Hz. 1. A 1310 or 1550 nm laser source (frequency 270, 1K or 2Khz) is added to one end of a large number of optical fibers to be sought. 2. At the other end, all optical fibers are tested successively with the optical fiber identification instrument. If a power, direction or frequency indication is found, the optical fiber is the one to be sought. The matching fibers of this optical fiber identification instrument are: 3mm or 2mm (optical fiber jumper), 0.9mm optical fiber jumper inner cable (tight sheathed fiber), 0.25mm bare fiber (bare fiber with loose sleeve removed). since the international air does not allow contains flammable and explosive goods, so the unity does not contain the battery delivery, thank you for understanding!
Reminder Due to the relatively high value of the goods declaration. a week later. to see the logistics update records. such as display to local customs. please buyers. you can take the initiative to contact the local customs clearance assistance. in order to protect the goods returned or destroyed.thank you. Confirm you can go handle the clearance. then order. Thanks for your support.
Matters to be reminded All post offices sent to Brazil and Argentina require the consignee to pay customs duties in order to receive the goods. If the goods are not paid beyond the time limit, the goods will be returned. You are required to bear the double freight. Thank you. Please confirm and order. Placing an order means that you agree to cooperate. Shipping: 1. Once we receive your payment, we will prepare & arrange shipment to you within 1-3 days. It usually takes approximately 10-30 working days to be delivered to the USA/ Canada/ UK/ other European countries, not include weekend and holiday via Hong Kong Post. For registered mail & EMS, we will save the delivery certificate after we send the items to you. Also, we will update the tracking number to you & save the delivery certificate for your reference if you need. 2.Prefer a fast delivery? If you Prefer a fast delivery like UPS/ DHL, please inquriy the fast delivery cost before your purchase. 3.This product will be shipped via registered mail of China Post. You can trace your parcel with the updated tracking number online. 4. Items will be marked as "Gift" and declared low value to minimize the customs tax.(NOTE: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer\'s responsibility. Please check with your country\'s customs office to determine what these additional costs will be prior to bidding/buying.) We can mark the customs cleanrance declaration per your instrution if any. Payment Terms: We only accept Escrow . For security reasons, we will only ship orders to the delivery address you confirmed with Escrow. Refund: 1. If you want a refund because of the item defect or some other quality problems, please contact us within 3 days after you get it. the fee relating to the reback mailing should be overtaken by yourself. 2.Less than 0.5percent of the bundle sometimes may get lost,but please don\'t worry about it.If you still fail to get your ordered items within the estimate time,please feel free to contact with us as quickly as you can.We will be responsible for resending you new items or refund you all the payment including item and transport costs. Feedback: Dear friend, we appreciate your business, if you are satisfied with our service, please leave us a positive feedback. and we will do the same for you. If you have any questions, please contact us first, and we will reply all the questions from our customers.