The LCD Probe is a durable and easy to use instrument for monitoring compost temperature and oxygen levels. It incorporates many of the features of our PocketPC compost monitoring probes in a standalone design. These features include sturdy handle grips and a hydrophobic filter to protect the oxygen sensor from any moisture or contaminants. Temperature and oxygen readings are displayed on a large LCD that is easily legible even in direct sunlight. The LCD Probe can be used to meet permit requirements for EPA class A compost or the USDA organic NOP standards.