Swift Oil Temperature Sender 10 x 1.5mm for Rotax 912, 914.
Similar to Falcon Gauge
Made in China
I used the probe with a chinese gage that i bought for about 6$ on Ebay and the reading is accurate.
The manufacturer doesnt give any specifications on these sensors, so its impossible to know if they are compatible with other equipment. I had to return mine, but at least I got to test them they measure 3.1K at ambient temp., and 223 ohms at 100deg C., so theyre not the same as the automotive VDO (Rotax oil temp) sensors that measure 68 ohms at 100deg C. The floating 2-wire design is a good feature to minimize electrical noise, though.