Product details
Ext. Temp Sensors no 2 and 3 for Emeter II RDU
The Temp#2 unit connects directly to Temp#1 unit, so Temp#1 is required to use these. Temp#3 connects to Temp#2. Temps 2 and 3 have cable length of 20cm each, so max reach of Temp#3 unit from RDU is about 65cm (~26").