Optec Optional External Temperature Probe Kit Though the QuickSync motors include an on-board temperature probe for measuring ambient temperature changes, many purists prefer the measurement be made directly at the telescope OTA. To satisfy this requirement the #19539 External Temperature Probe Kit is available. For users of the original Microtouch motors which do not include an on-board temperature, the #19539 External Temperature Probe Kit can provide the sensor for Temperature Compensation (TC) which would not otherwise be available. Technical Specifications Temperature Sensor: Digital Temp Sensor type TMP04FT9ZProbe Cable Length: 24-inch (61mm) [lengths to 6-ft. upon request] Hub Connection: RJ45 8-pin socketProbe Connection: 6-pin DIN socketFocuser Connection: RJ12 6-pin socketSplitter Box Material: 6061 aluminum, anodized blackLength: 3.1″ (80.3m)Width: 1.125″ (28.5mm)Thickness: 1.2″ (31.3mm)Weight: 2.2 oz (65 g)Mounting: Dual tabs with 1/4-20 clearance holes Manuals & Warranty Optec 1-Year Warranty Wiring diagram for the original MicroTouch and FeatherTouch square box Direct Connect Cable. QuickStart guide