R718AD
Surface, liquid or enclosed-space temperature is measured by the R718AD via a 316 stainless-steel contact probe on a 1.5 m PTFE lead, covering -40°C to +125°C with accuracy better than ±1°C. The probe can sit inside a freezer, on a hot pipe or in a tank while the LoRaWAN transmitter stays where signal is good. The main unit is rated IP65 (IP67 optional), the probe IP67, and a magnetic base allows fixing to steel without tools. Two AA-size lithium batteries deliver around five years of 15-minute reporting. Typical uses are refrigeration and freezer monitoring, hot-water and heating pipe temperatures, and process or equipment temperature checks.
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