The ML-200G features ultra-bright green laser line up to 135 degrees, excellent stability even at extreme temperatures, and a flexible adjustable housing. Moreover, ML-200G is now waterproof so it's protected under all weather. It projects a visible green guide line up to 100 feet long (at the distance of 29 feet) - suitable for large work surfaces.<br><br> It can be used as a guideline for use in alignment, machine vision systems, construction, and process control and is ideal for most large-field cutting applications, even under a bright surrounding condition indoor and at extreme temperatures! The ML-200G will increase your accuracy for many applications, such as woodcutting, stone cutting, and textile cutting. Compact & lightweight features make it very convenient to mount the ML-200G to a worktable or a cutting machine - saving you time. <br><br> <b>Direct Green Laser Diode: new revolution in green laser technology</b> <br> The new revolution in green laser technology provides excellent stability even at extreme temperatures!<br> A laser line generator is only as good as the lines it produces in any application, any time. In the past, the bad news for green laser products is that they are more sensitive to extreme temperatures than red lasers, but not anymore. If you try this ML-200G, you will find out that our green lasers have excellent stability even at extreme temperatures. <br> Built-in revolutionary direct green laser diode makes the output power of its laser steady. The operating temperature range of the ML-200G is from -4 °F (-20 °C) to 140 °F (60 °C), which is a huge spread. <br> <br> <b>Why choose direct green laser product?</b> <br> Direct Green Lasers are direct-diode semiconductor lasers. The stability of the laser output is greatly improved. A long lifetime and high reliability at continuous operation are guaranteed.