Yep. On is OFF and OFF is ON.
BTW, I installed a Magnum ME-BMK last weekend. I turned off shore power and ran the fridge on the inverter to see how long it would go. The Samsung only showed to be using 10 amps DC. Ambient temperature was around 60, so I assume the compressor was near it's lowest. I ran the Samsung and the Dometic outdoor freezer for 30 hours and the batteries still had 66% SOC. I know this will change once we experience hot weather, but I am pleased with all, the battery upgrade, the battery monitor, and the performance of the RF18.
Scotty and Kristen, Airedales Dagny and Wyatt
2007 Newmar Mountain Aire 4528, 450 HP ISM, Allison 4000, 8 Trojan T-105's
2019 F250 King Ranch 4x4 Powerstroke
Roadmaster Blackhawk 2, RVI2 Brake System