A total of three modules may be used with the main receiver, one included. Splashproof remote module is supplied with two sensors. Use either the internal one or plug the external one into side of module. External sensor (3/16 " dia X by 3/4" long) and 10-foot cable perform accurately even when both are under water. Switchable °F/°C range is –58.0 to 158.0°F and –50 to 70.0°C. Resolution is 0.1° and accuracy is ±1°C. Requires two AA and two AAA alkaline batteries (included), which should last about 8 months.
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