Forafull product specification, see: Documentation
Temperature sensor
Area:
MX2301A and MX2305 internal sensors: -40 to 70°C
MX2302A external temperature sensor: -40 to 70°C
MX2303 and MX2304 external sensors: -40 to 100°C (with tip and cable immersed in fresh water up to 50°C for one year)
Accuracy:
±0.25°C from -40 to 0°C
±0.2°C from 0 to 70°C
±0.25°C from 70 to 100°C (MX2303 and MX2304 only)
Resolution:
MX2301A and MX2302A: 0.02°C
MX2303, MX2304, and MX2305: 0.04°C
Operation: <0.01°C per year
Relative humidity sensor (MX2301A, MX2302A only)
Range: 0 to 100% RH, -40° to 70°C; exposure below -20°C or above 95% RH may temporarily increase the maximum error of the RH sensor by 1%.
Accuracy: ±2.5% from 10% to 90% (typical), max ±3.5% including hysteresis at 25°C; below 10% RH and above 90% RH ±5% typical.
Resolution: 0.01%
Drift: <1% per year typically
Response time (typical, to 90% change)
Temperature:
Without sun protection:
MX2301A internal sensor: 17 min in air moving at 1 m/s
MX2302A external sensor: 3 min 45 sec in air moving 1 m/s
MX2303/MX2304 external sensors: 3 min in air moving 1 m/s; 20 sec in stirred water
MX2305 internal sensor: 17 min in air moving at 1 m/s
With RS1/M-RSA sun protection:
MX2301A internal sensor: 24 min in air moving 1 m/s
MX2302A external sensor: 7 min 45 sec in air moving 1 m/s
MX2303/MX2304 external sensors: 7 min in air moving at 1 m/s
MX2305 internal sensor: 24 min in air moving 1 m/s
HR:
Without sun protection:
MX2301A internal sensor: 30 sec in air moving 1 m/s
MX2302A external sensor: 15 sec in air moving 1 m/s
With RS1/M-RSA sun protection:
MX2301A internal sensor: 40 sec in air moving 1 m/s
MX2302A external sensor: 30 sec in air moving 1 m/s
Logger
Working range: -40° to 70°C
Radio power: 1 mW (0 dBm)
Transmission distance: About 30.5 mi clear line of sight
Wireless standard: Bluetooth Low Energy (Bluetooth Smart)
Logging interval: 1 second to 18 hours
Logging modes: Fixed interval (normal, statistics) or burst
Memory modes: Wrap at full memory or stop at full memory
Start modes: Immediate, key press, date and time, or next interval
Stop modes: When memory is full, key press, date and time, or after specified logging period
Time accuracy: ±1 minute per month from 0° to 50°C
Battery type: 2/3 AA 3.6 Volt lithium, user replaceable
Battery life: 2 years with logging interval of 1 minute and Bluetooth always on; 5 years with Bluetooth turned off
Memory:
MX2301A and MX2302A: 128 KB (max 63,488 measurements)
MX2303, MX2304, and MX2305: 128 KB (max 84,650 measurements)
Download time for full memory: Approximately 60 seconds
Dimensions:
Logger housing: 10.8 x 5.08 x 2.24 cm
Diameter of external temperature sensor: 0.53 cm
Diameter of external temperature/RH sensor: 1.17 cm
Length of external sensor cable: 2 m
Bracket for sun protection: 10.8 x 8.3 cm
Weight:
Logger: 75.5 g
Bracket for sun visor: 20.4 g
Materials: Acetal, silicone seal, stainless screws
Environmental classification: NEMA 6 and IP67
