Made in 2019 but new sensor in 2023. Checked against air and pure O2 - fast and accurate response. With plastic protective tube.
Oxycheq Expedition HE - $400 USD
Older unit but factory serviced a few years ago. With charger and OMS flow control for BCD fitting.
OMS Peanut - $150 USD
Great shape but will need a new sensor. With Pelican box.
Items in Canada but in the US regularly and can ship from there isno rush.