SKU 1650997 is a handheld dry-well calibrator designed for field and bench calibration of temperature sensors including RTDs, thermocouples, and bimetal thermometers. The product combines portability with precision, featuring a compact design (57 x 125 x 150 mm) and lightweight construction (1 kg), making it ideal for on-site calibration work. It offers temperature ranges from 35°C to 375°C with accuracy of ±0.25°C at 50°C and 100°C, stability of ±0.07°C at 50°C, and stabilization time of 5 minutes, along with RS-232 interface connectivity for automated documentation. The dry-well is commonly used in field service, laboratory calibration, and industrial maintenance applications where portable, accurate temperature verification is required.