The JL3RH Job Link® System Psychrometer Probe has a long flexible wand and strong sliding magnet for easy measurements anywhere on the system. Get instant live readings from ducts, plenums, registers, or grilles for accurate diagnostics.

• Place in critical locations based on system needs
• Requires only 3/8" hole for duct testing

You can connect your psychrometers directly to both the Job Link app and the wireless SMAN™ Refrigerant Manifolds (3-port SM380V or 4-port SM480V) to see live air temperatures readings while you're making adjustments to the system. Data log results in the manifolds, or include in Job Link System reports.

• 350’ wireless signal with no transmitter required
• Powerful enough to go through most walk-in coolers and freezers

Return and supply indicator switch ensures you're recording the right measurements in the correct place.

• Dry bulb
• Wet bulb
• %RH
• Dew point
• Enthalpy