This Acu-Trol ORP Sensor does not include the wire and is used on the Acu-Trol AK110, AK2100, AK600 and Control-O-Matic PoolWarden Controllers. They have a removable bulb guard, red housing ring, and include a rubber o-ring replacement.
The Acu-Trol industrial ORP sensors from Pentair Pool Products are a brand you can trust.
