Most sensors have been designed to use existing wiring and do not require a neutral for installation. See below for ground/neutral requirements for specific sensor models:
Product | Ground Required? | Neutral Required? |
IPS02/IPV02 | Yes | No |
IPS05/IPV05 | Yes | No |
IPS06 | Yes | No |
IPSD6/IPVD6 | Yes | No |
IPS15/IPV15 | No | Yes |
IPHS5 | No | Yes |
DOS02/DVS02 | Either Neutral or Ground Required | Either Neutral or Ground Required |
DOS05/DVS05 | Either Neutral or Ground Required | Either Neutral or Ground Required |
ODS10 | Yes | No |