XMK 6600-166 Temperature Sensor for Sundance Spas and Jacuzzi Hot Tubs, with Curled Finger Connectors and 6540-228 O-Ring

Priced right, fit perfect and works flawlessly.

This was exactly what I needed when the thermostat on my hot tub stopped working. Easy to install and wire. Worked exactly as it should when I got the Jacuzzi refilled and running again. No problems since installation.

Worked great in my Sundance Denali spa

Fit was perfect, functioned as it should, hot tub temp readout agrees with manual thermometer in water

Fit perfectly and was very easy to replace. Rather than try to pull the fiddly connector off the green board, I cut and spliced the new wire to the old inside the control box. The o ring provided didn't completely cover the hub of the sensor so I reused the old one. I think the spa repairmen get about two hundred bucks these days just to step out of their truck, so this saved me significant money. Even if this sensor only lasts a few years, it's OK. It's a cheap, easy repair.

Everything worked great but the connection clip to the motherboard. Ended up removing the clip and connecting each wire individually.

We'll see how long it lasts, but it did fix my inaccurate temperature issue in my hot tub

This was the correct sensor for the hot tub spa that I repaired. However it is not overly accurate. It's telling the temperature is 106° when it's actually 102 which is fine as long as you have redundant systems to measure the temperature your water.

Good price quick delivery Well wrapped

Works great and fixed my incorrect temperature registering issue. My Jacuzzi J series hot tub started showing the temperature at about 10° lower than it was, this fixed the problem and was easy to install

Sensor is like the OEM except doesn't have the gold plated terminals but I put electrical grease so they wont get corroded with time. replaced it and works as expected.

Replaced the malfunction temperature sensor in J345 and now hot tub is working well.

Fonctionne bien