1: (1)with Air Bubble Level Function Device which keep your hand holding laser rangefinder level  position，it make measure More accurate and convenient.

(2)measure:length/ Area/Volume/pythagorean proposition/add and subtract andmeasure continuously;measure max and min distance and so on.max record(storage)99 unit. 

(3)Unit can be shown in feet， inch and meter. Number can be shown in decimal also fraction， such as 79.998m or 1/8" or 225.46ft

2:measure at least 80 meters(pls don\'t use under strong bright light)， Under indoor(under not strong bright light) measure can achieve more than 86meters. you can see below picture measured result(86.590m) can prove that measure achieve more than 86 meters

Pls note:all laser prodution will be affected measure if use in strong bright light.laser distance meter will show Err if use in strong bright light(Very simple reason:strong bright light will weaken the laser signal). also，If battery votage is too low it will show Err pls replace battery.

4:we guarrantee that we will send parcel within 5 days. this is the fastest delivery speed in alibaba， We ensure to provide most excellent products ， fastest speed delivery and the best service to you.Your satisfied is our encourage. We are factory direct sales， so save more cost for customers.

5:If order more than 100 pcs more favorable more discount for you，We can make OEM according to customer requirements，for your brand，your model，your language manual.even your gift box. Our standard packing :neutral english manual，neutral english gift box.

Kindly reminder:

40m:$52     50m:$55       60m: $58 

70m:$62    80m:$68     100m:$109

Product Detail: