Shinwa Sokutei Light Receiver Laser Receiver II Plus for Green with Holder 71501

---------------------------------------------------------------------- Quantity: 1 piece Body size 150×67×34mm Light receiving distance 1.5m~20m Center reception width Narrow mode: Within ±1.0mm from the center reception line Wide mode: Within ±2.0mm from the center reception line Auto power off: Automatically turns off the power approximately 7 minutes after turning on the power. Battery low warning: Warning with blinking power LED Power supply: 1 9V alkaline battery (the included battery is for monitor use and may have a short lifespan.) Continuous use time approximately 20 hours Application: For marking out in bright places or in places where the laser line is difficult to see from a distance.