â·ÃÊͺ¶ÒÁÃÒ¤Ò à¤Ã×èͧÁ×ÍÇÑ´ à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ à·ÍÃìâÁÁÔàµÍÃì à¤Ã×èͧÁ×ÍÇÑ´ à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ Thermometer > à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ... à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ TM20 Compact Temperature Indicator Features : ncludes 0.78" (20mm) stainless steel probe with 9.6ft (2.9m) cable Measures temperature from -40°F to 158°F (-40°C to 70°C) ±1.8°F/1°C basic accuracy with 0.1° max resolution Audible and visual alarm alerts when temperature level is higher or lower than the user programmed Min/Max, Data Hold and Low battery indication Waterproof housing and sensor designed to meet IP65 Complete with foot stand, temperature sensor, and a CR2032 3V button battery Specifications : Basic accuracy: ±1.8°F/1°C Max resolution: 0.1° TM20 sensor temperature range: -40°F to 158°F (-40°C to 70°C) TM25 sensor temperature range: -40°F to 392°F (-40°C to 200°C) Dimensions: 3.4Lx2.2Hx1.2"D (86Lx57Hx30D mm) Weight: 3.2oz (90g) Extech Temperature Thermometer TM20 à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ