Reduce the humidity in your enclosure to prevent condensation that can cause corrosion and short circuits. These humidistats switch your heater on when the enclosure reaches the relative humidity setting. Once the humidity falls by 5%, the heater switches off. To install, clip humidistats to a DIN rail.

CSA Certified, CSA-US Certified, CE Marked, and VDE Certified, these humidistats meet American, Canadian, and European safety standards. They also meet UL 94 V-0, so if they catch fire, they self-extinguish within 10 seconds and won’t spread the fire by dripping.

Keep sensitive equipment dry inside enclosures. Also known as Peltier dehumidifiers, these dehumidifiers use electrical currents to remove moisture from the air. They’re smaller and require less maintenance than traditional dehumidifiers, since they don’t use refrigerant or compressors. However, they use more energy. Place dehumidifiers at the bottom of an enclosure, or mount them onto the included DIN rail. Moisture collects in the drain hose. Use a drain kit (sold separately) to direct moisture out of the enclosure.

Turn the dial to control humidity equipment.

Place these dehumidifiers in small spaces to protect moisture-sensitive materials such as photo lenses or 3D printing filaments. They absorb moisture with a silica gel that changes color, letting you know when they’re saturated. While they don’t need a battery or power cord during use, you do plug them in to dry them out—unlike other desiccants, they don’t require an oven.