General
Sensor Type (see Charts) . . . . . . . . . . . . . . . . . . . . . . . . Platinum wire thermistor
Time Constant
In Still Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 seconds
In Liquid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 seconds
Attached Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . 25' (7.6 m)
Cable Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-conductor, 26AWG
Recommended Maximum Cable Length (see Note 1) . . . 200' (61 m)
Note: There is no absolute maximum cable length. Increasing the cable length above the recommended maximum length causes an increased measurement error at a rate of approximately +0.24°F (+0.13°C) per 100' (30 m) of 22 AWG cable. See Figures 1 and 2, on page 2.
Housing Material
6475 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316 alloy stainless steel housing with vinyl strain relief
6477 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Black vinyl
Housing Dimensions
6475 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.312" diameter x 2.5" long (8 mm diameter x 64 mm long)
6477 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.25" diameter x 1.25" long (6.5 mm diameter x 32 mm long)
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5 oz. (128 g)
Sensor Output
Resolution and Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1°F or 1°C (user-selectable)
Historical Graph Data and Alarms: 1°F or 1°C (user-selectable)
Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40° to +150°F (-40° to +65°C)
Sensor Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1°F (±0.5°C) typical (see Figure 3) Update Interval
When used with Wireless Temperature Station
or Anemometer/Sensor Transmitter Kit . . . . . . . 10 - 12 seconds
When used with Weather Envoy or Envoy8X . . . . . . 1 minute
