testo Smart Probe Kit I HVAC/R Gauge Set for air Conditioning, Refrigeration and Heating System I Includes testo 115i and 549i – with Bluetooth: Amazon.com: Industrial & Scientific
Testo 115i Testo Smart Probes Smart Wireless Mini Clamp Thermometer Operated Via Smartphone 0560 2115 02 - AliExpress
testo Smart Probes Heating Set
testo 115i pipe-clamp thermometer operated via smartphone