Does anyone know if these can be calibrated and if so how? Did some googling and there is like 0 info about this heater...lol probably because it's so old. I'm using this to mix saltwater, not in the tank. 2 thermometers say temp is 80* and the heater reads 84*
Link: https://www.amazon.com/AquaTop-Tita...017JK30G4/ref=cm_cr_arp_d_product_top?ie=UTF8
Link: https://www.amazon.com/AquaTop-Tita...017JK30G4/ref=cm_cr_arp_d_product_top?ie=UTF8
