Specifications Product Name: BF Series Laser Rangefinder Model/measurement range: BF50: 0.05m~50m BF70: 0.05m~70m BF100: 0.05m~100m BF120: 0.05m~120m Measurement error: 2.0mm m, ft, in Distance unit: m, ft, in Area unit: m, ft Laser type: 620~690nm Single measurement time: 0.25 Working temperature: 0~+40 Storage temperature: -20~+65C Battery Type: Alkaline AAA21.5V Battery measurable times: >5000 time Weight (without battery): about 75g Size: 110*50*26mm About Shipment 1.WORLDWIDE SHIPPING. (Except some countries and APO/FPO) 2. Orders proceed timely after the payment verification. 3. We only ship to confirmed order addrees. Your order addre MUST MATCH your Shipping addre. 4. The images shown are not the actual item and are for your reference only. 5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season. 6. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as poible with a reply. Our goal is customer satisfaction! 7. Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery. Return & Refund 1. You have 7 days to contact us and 30 days to return it from the date it was received. If this item is in your poeion more than 7 days, it is considered used and WE WILL NOT ISSUE YOU A REFUND OR REPLACEMENT. There are NO EXCEPTIONS! Shipping cost is bear by both seller and buyer in half. 2. All returned items MUST BE in the original packaging and you MUST PROVIDE us with the shipping tracking number, specific reason for the return. 3. We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its original condition and packaging with all components and acceories included, AFTER BOTH Buyer and Seller cancel the transaction from aliexpre. OR, you may choose to have a replacement. 4. We will bear all the shipping cost if the product(s) is (are) not as advertised. About Feedback We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily addre your concerns.It is impoible to addre iues if we do not know about them!