Hello guys i have a helix DBS-1000 for sale is the non grounded plug version. It is in perfect working condition i just bought a herpastat 4 and i no longer need this thermostat. It was only used for 3 months I do not have the original packagin or manual is pretty simple to use they have digital manauls on the helix website. The price i am asking is 105 with shipping included any were in the continental u.s.a. Only payments i except is paypal thanks for your time. Can text my cell for pics or give me a call any time. My name is Jeff and my cell is 603-790-0029 thanks for your time guys.