The probe is attached to a 3-ft. cable for checking humidity, temperature, and dew point in hard-to-reach areas.

Check humidity levels of moisture-sensitive inventory and equipment at a glance. To detect moisture exposure when packaging, shipping, and storing electronics and chemicals, these cards have dots that change color as humidity levels change. Store electronics in a moisture barrier bag with one of these cards and a desiccant bag (bags not included). To revert these cards to their original color, place them in a dry container for 24 hours or bake at 180° F for 3 hours. Cards will not revert to their original color once they reach 60% or greater humidity. They meet industry guidelines for packaging moisture-sensitive devices.

Meters measure indoor relative humidity and indoor and outdoor temperatures.

Determine relative humidity within ±4% accuracy and temperature within ±1.8° F accuracy. This meter comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy. It also displays dew point or frost point.

Use smartphones and tablets to monitor humidity and temperature within your system or facility. Connect these battery-powered transmitters to your smart device via Bluetooth, and receive data to ensure workplace conditions are suitable for processes, inventory, or personnel. Good for preventative maintenance and route-based monitoring, these transmitters let you choose how frequently you receive the data, and they’ll notify your device when humidity and temperature levels go outside of your thresholds. Download the app, set your parameters, and collect data from up to 300 ft. away. Rated IP65, they are protected against dust and washdowns.

Turn your transmitter into a portable monitoring system by attaching a quick coupling (not included). This allows fast, temporary connections for on-the-go measurements in different locations.

Meters measure indoor relative humidity and indoor and outdoor temperatures.

Quickly weigh the moisture in an object or substance. Also called moisture analyzers, these scales help with a variety of tasks, from measuring the liquid content of concrete to the concentration of medications. They work by weighing your sample before and after it’s been dehydrated to determine its moisture percentage. A halogen light or carbon fiber heating element quickly and evenly heats samples inside a reflective chamber.

Use the quick setup function to automatically analyze a sample and create a testing method. These scales have a standard drying speed setting that heats your sample without over drying it. Use the fast setting to quickly heat the chamber to drying temperature, however this setting is more likely to over-dry a sample. To stop a test, there are three different modes—manual, automatic, and timed. Automatic mode allows you to set your own criteria to stop the test once moisture loss is no longer detected. To zero the scale after a weighing pan has been placed on it, simply press the tare button. Print your measurement data or send it to your PC using a USB or RS-232 cord (not included).

These testers come with a reusable pan to place your sample in. For samples that could spit and spatter when heated, place your sample on the rough side of the included fiberglass pad. Use a disposable aluminum pan (sold separately) for samples that are difficult to clean.

Meters with accuracy certificate come with a document stating they’ve passed a test for accuracy.

To ensure reliable readings on the go, this portable meter comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy.

These sensors measure temperature and humidity, then send that information to your PLC or controller to regulate heating and cooling equipment, alarms, and data recorders. Choose a sensor that works with your digital IO-Link or analog 4-20 mA system. Clip it to a DIN rail or mount it to a surface, and use the micro M12 plug to connect the sensor to your controller. These sensors are often installed in enclosures.

Sensors meet American, Canadian, and European safety standards. Rated IP20, they’re designed so fingers can’t reach the electrical parts inside and get shocked. They also meet UL 94 V-0, so if they catch fire, they’ll self-extinguish within 10 seconds and won’t spread the fire by dripping.

Obtain continuous temperature measurements from a wet-bulb and a dry-bulb thermometer to determine relative humidity. This wall-mount humidity meter consists of two mercury-free fluid-filled thermometers, a wick, a glass water bulb, and a relative humidity calculation table.

Also known as sling psychrometers, these calculate relative humidity in the field based on continuous temperature measurements from a wet-bulb and a dry-bulb thermometer. They consist of two mercury-free fluid-filled thermometers, a wick, a glass water bulb, and a handle. These humidity meters have a built-in slide rule for calculating humidity without a calculation table.

Monitor humidity in sealed containers without opening them, protecting the inside from contamination. These plugs are often used on plastic bags, storage containers, and electrical housings. Consisting of a mounting nut and two gaskets for a tight seal, these plugs install through a hole in a flexible barrier. Remove one gasket and reverse the nut to install plugs in a rigid container. Watch the indicator disc through the nut’s viewing window—it will change color as humidity rises and falls. Made of anodized aluminum, these plugs resist corrosion and are lightweight. They meet military and SAE standards for humidity indicators.