Enhance the durability and lifespan of your Testo measuring instruments with the TopSafe Protective Case. This waterproof case effectively protects devices from moisture, impacts, and dirt, ensuring they remain operational in challenging conditions. Crafted from transparent silicone, the case maintains the instrument's aesthetic while offering robust protection. Its lightweight design, at only 36 grams, adds minimal bulk, allowing for easy handling and transportation. The TopSafe case is compatible with various Testo instruments, including the testo 315-4 CO measuring instrument, making it a versatile accessory for professionals seeking to safeguard their equipment.