EXTECH Instruments RH520 Humidity & Temperature Recorder With Alarm Dew Point
Description : 01 Jun, 2023
Cash on collection from Ash Vale GU12 5HS, would post at cost
EXTECH Instruments RH520 Humidity and Temperature Recorder
Instructions for setting up & operating are on the rear of the unit. Probe is detachable from the main unit and has a 1m lead. Unit can be wall mounted. Can display in centigrade or fahrenheit. Has a memory for logging 49000 measurements that can be cleared when full via a data reset switch and there is also a factory reset switch. Temperature & humidity ranges can be set as can an alarm for minimum / maximum temperature & humidity. Has a connection to PC for transferring data but no idea how this works (no software included). Requires 3 x AAA batteries (not included) or external 4.5 V DC (not included)
Tested and working but not been calibrated for a number of years so would need recalibrating for accurate readings. Has some marks / wear. No instructions but these are available on line if you search 'RH520_manual.pdf'
No box.
Specifications
Display Large, backlit graphical LCD
Temperature measurement range -20.0 to 140.0oF (-28 to 60oC)
Humidity measurement range 10 to 95%
Dew point temperature -20.0 to 140.0oF (-28 to 60oC)
Accuracy ±3.0% RH and 1.8oF (1oC) for temperature
Internal memory storage 49,plete reading sets
Sampling interval Selectable recording rate: 0.1 to 199.9 minutes
Graph scaling User selectable in 10oF, 5oC and 10% increments
Low battery indication 5-segment battery indicator
Power supply Three (3) ‘AA’ batteries and AC adaptor
Battery life 4 weeks typical, using alkaline batteries
Operating Temperature CONTROL MODULE and DISPLAY:32 to 120oF (0 to 50oC)
SENSOR: -20 to 140oF (-28 to 60oC)
Operating Humidity CONTROL MODULE and DISPLAY:90% RH max. SENSOR: 95% RH max.
Dimensions 5.0 x 7.7 x 0.9\" (127 x 196 x 23mm)
Weight 12.6oz (357g)
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