Model : AZ-8001 Lowest Cost Handheld Digital Contact Tachometer 

Features : 

• LOWEST COST TACHOMETER IN THE MARKET
• TWO WAYS TO POWER ON/OFF     
• SAFE AND EASY TO GET ROTATION SPEED
• NON-CONTACT MEASUREMENT BY RED LED BEAM
• CONTACT ROTATING OBJECT VIA CONVEX OR
• CONCAVE CONTACT TIPS
• AUTO POWER OFF IN 20MINS INACTIVITY 
• HOLD FUNCTION FREEZES CURRENT READING
• FOUR ROTATION SPEED UNITS ARE SELECTABLE IN
• CONTACT MODE: RPM, M/MIN, FT/MIN, YD/MIN.    
• SLEEP MODE CAN BE DISABLED
• LOW BATTERY ICON INDICATES WEAK POWER  

Content : 

• 1 x AZ-8001 Digital Contact Tachometer Rotation Surface Speed Tester(10~19999RPM)
• 1 x Original Package