OMEGAHH-21A Ultra-High-Precision Digital Thermometer

OMEGA HH-21A Ultra-high-precision digital thermometer single input and dual-input models display: 5-digit display; used to indicate the type of thermocouple, ° C / ° F units, maintaining and customizing a low battery indicator; HH-22A and HH-23A also used to indicate the input (T1, T2, T1-T2, scanning), up / down trend arrow and minimum / maximum data storage indicator. Keyboard: momentary switches with tactile feedback; the on / off status, thermocouple type, units, resolution, retention; HH-22A and HH-23A as well as for recording the minimum / maximum, view the Min / Max, stop / Clear Input record type (T1, T2, T1-T2, the scan) button. Configuration Reserved: Readings off the reservation a result, the input type, units and resolution Diagnosis: low power, thermocouple circuit, keyboard input invalid, out of range, internal hardware fault Accuracy: reading of 0.1% + 0.6 ° C (1 ° F) Repeatability: at a constant temperature, 1 week up to 0.2 ° resolution: the entire range is 0.1 ° Temperature coefficient: Less than 64 ° F (18 ° C) and above 82 ° F (28 ° C), is (reading 0.02% + 0.1 ° C); at 18 ~ 28 ° C (64 ~ 82 ° F) inside, then included in the accuracy of the ambient temperature: 0 ~ 50 ° C (32 ~ 122 ° F ), relative humidity 0 to 90% read rate: 1 per second maximum common-mode voltage: 42V peak operating power is grounded: 9 Vdc alkaline battery (included) Battery life: 100 hours, the typical alkaline battery Dimensions: 178 (H) x 74 (width) x 28 mm (thickness) (7.0 x 2.9 x 1.1 ";) Weight: 284 g (10 oz) HH-21A, HH-22A, HH-23A Guangzhou City Trade Co., Ltd. Other available brands AZBIL, CHINO, COPAL, FLUKE, FUJI, HONEYWELL, KYWOA, OMEGA, OMRON, RKC, SAMWON, SHIMADEN, SHIMPO, TAIE, TOHO, DATAFORTH