JL3KR4 – WIRELESS REFRIGERANT CHARGE KIT

A wireless refrigerant charge kit with pressure probes and pipe clamp thermocouples. The JL3KR4 connects to the Fieldpiece Job Link app for real-time superheat and subcooling calculations. Rapid Rail sensors snap onto pipes for fast readings, and the 1000-foot wireless range lets you monitor from anywhere on the job.

Specs: Wireless via Job Link app, 1000-foot range, Rapid Rail sensors, pressure probes and pipe clamps included, by Fieldpiece

Replaces: JL3KR4

Fits: AC and heat pump refrigerant diagnostics — superheat, subcooling, and system charging

In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.

Cross-reference numbers

This part replaces the following OEM and aftermarket numbers:

• UEI
• YELLOWJACKET

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.