two spare probe heads
Dimensions: 2-1/2” x 2-1/4" x 3/8” (6
humidity cannot be measured at temperatures below -20°C
Data Backup: For about 5 days from the time of battery removal (If a working battery has been in the unit for more than twenty-four hours) For about 1 year with batteries in use (If all battery power is lost the stored data will be lost)
The Davis Instruments Mark 15 sextant navigation tool includes seven sunshades and a micrometer drum Vernier scale that reads to 2/10 of a minute
SHA-3151 Sensor, Temperature and Humidity from T&D taylor two spare probe headsSHA 3151 High Accuracy Temperature and Humidity Sensor with a 1500 mm cord that works with models TR72A2 72A2 S, TR 72nw 72nw S, TR 74Ui 74Ui S 76Ui 76Ui S, RTR 574 574 S 576 576 S and older models TR72A 72A S, TR 72wb 72wb S 72wf 72wf H 72nw H, TR 74Ui H 76Ui H, RTR 574 H 576 H, TR 702NW 702NW H 702AW 702AW H, TR 77Ui Specifications Measurement Range: Temperature 25 to 70 C, Humidity 0 to 99 %RH Note: When continually used in environments with