Simultaneously displays high/low and current temperature A triple display constantly shows high, low, and current temperatures. Instantly view if freezer, water bath, or incubator is within temperature spec. Monitor temperature of any experiment when youre not there#overnight, weekends, even during lunch. Range is #58 to 158°F or #50 to 70°C. Resolution is 1° and accuracy is ±1°C. Sensor and 10 ft cable may be placed under water, in refrigerator, or freezer. Small cable diameter (1/16-inch) allows refrigerator doors to close on it. Unplugging the cable activates a sensor inside the unit for monitoring ambient temperature. One-key operation is a snap - Simple, one key operation resets the minimum/maximum memories. Probes wire-mounting bracket permits easy sensor placement. To assure accuracy an individually serial-numbered Traceable® Certificate is provided from our ISO 17025 calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST (National Institute of Standards and Technology). Units high-impact ABS plastic case has a flip-open stand, wall mount, magnet, and hook & loop mounting tape. Size is 2-5/8 x 2-1/2 x 3/4 inches and weight is 1-7/8 ounces. Replacement battery Cat. No. 1039.