Product	TH300
Description	Temperature/Humidity/Dew Point Indicator
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Features	This highly accurate instrument is ideal for field and on-site temperature, humidity and calculated dew point readings. The sturdy design features a smooth, ergonomic body that allows for easy clean-up and maintenance. The advanced TH300 stores and recalls 16 readings, including temperature, humidity, and calculated dew point, with the touch of a button. Additional features include: large digital display (characters almost 1 inch in height), automatic shut-off, min/max, hold key, low battery indicator, calibration, and delta T function. HUGE digital display of temperature and humidity Outstanding ergonomic design with slim case and remote wand Calculates dew point, and can store/recall 16 readings with the touch of a button User calibration °F/°C switchable Display of minimum/maximum, and data hold
Notes	The Humidity sensor has possibly been saturated or damaged. What is the environment like in which the unit is being used? If the 99% is due to customers environment, this means the sensor has been saturated. Recommend the protective filter part # A867. If sensor was saturated, the unit will return to normal after a few hours in a dry environment. Calibration is off If the unit is reading LOW in a HIGH humidity environment, let the unit stabilize a while longer, this could possibly be due to insufficient air flow. What is the tolerance of the unit it's being compared to? We DO NOT recommend that a sling psychrometer be used to compare readings. It's ok if the unit is within the sum of the two tolerances Using the Zero adjustment procedure (ZR MODE) found in the user manual, compare and adjust the unit to another instrument that is accurate. Has the customer or an outside calibration house attempted calibration? Are the Dickson calibration salts being used? The salts can have a ± 5% R/H tolerance and are not recommended for a full calibration process if the unit will be used to monitor humidity levels throughout the full range. Unit is on but doesn't respond to changes Is the unit locked up? Try replacing the battery. Locked up or Frozen Display Unplug then replace battery. No Power Make sure that battery is good.
Specifications	Temperature Range: -22 to +185°F, -30 to +85°C Temperature Accuracy: ±1.8°F (±1°C) Temperature Sensor: Thermistor Humidity Range: 0 to 95% RH (non-condensing) Humidity Accuracy: ±2% from 0 to 60% RH; ±3% from 60 to 95% RH Humidity Sensor: Monolithic IC Humidity Sensor Calculated Dew Point Range (Model TH300 only): -20 to +120°F (-30 to +50°C) Calculated Dew Point Accuracy (Model TH300 only): ±3°F (±2°C) from 30 to 95% RH Probe Type: 6 pin Mini DIN Probe Dimensions: 5.9" x 91" dia (15.0cm x 2.3cm dia) Cable Length: 6' (2 meters) Response Time: 30 sec to go 63% of Full Scale Power Supply: One 9V battery Resolution: 0.1%RH, 0.1°F/C Battery Life: Approximately 50 hours typical (auto shut-off after 12 minutes) Ambient Operating Range: +32 to +122°F (0 to +50°C); 0 to 95% RH (non condensing) Calibration: User: Zero Pt.; Factory: Zero Pt. and Span Approvals: CE Disaply: LCD, 4 digit with indicators Enclosure: ABS & Polycarbonate Dimensions: 7" x 2.75" x 1.35" (178mm x 70mm x 35mm) Weight: 11 oz. Model TH100 Includes: One 9V Battery and Dickson Certificate of Calibration Model TH300 Includes: One 9V Battery, 1-Point NIST Traceable Certificate of Calibration and Carrying Case