| Temperature Sensor (MX1104) |
| Range | -20° to 70°C (-4° to 158°F) |
| Accuracy | ±0.20°C from 0° to 50°C (±0.36°F from 32° to 122°F) |
| Resolution | 0.002°C at 25°C (0.004°F at 77°F) |
| Drift | <0.1°C (0.18°F) per year |
| RH Sensor* (MX1104) |
| Range | 0% to 100% at -20° to 70°C (-4° to 158°F); exposure to conditions above 95% may temporarily increase the maximum RH sensor error by an additional 1% |
| Accuracy | ±2.5% from 10% to 90% (typical) to a maximum of ±3.5% including hysteresis at 25°C (77°F); below 10% and above 90% ±5% typical |
| Resolution | 0.01% |
| Drift | <1% per year typical |
| Response Time (MX1104) |
| Temperature | 11 minutes in air moving 1 m/s (2.2 mph) |
| RH | 30 seconds to 90% in airflow of 1 m/s (2.2 mph) |
| Light Sensor (M1104) |
| Range | 0 to 167,731 lux (15,582 lum/ft2) |
| Accuracy | ±10% typical for direct sunlight (see Light Measurement on page 4 for more details) |
Logger with
Cable Type | SD-MA-420 or CABLE-4-20mA | SD-VOLT-2.5 or CABLE-2.5-STEREO | SD-VOLT-05 or CABLE-
ADAP5 | SD-VOLT-10 or CABLE-ADAP10 | SD-VOLT-24 or CABLE-ADAP24 |
| Measurement Range | 0 to 20.1 mA | 0 to 2.5 V | 0 to 5.0 V | 0 to 10 V | 0 to 24 V |
| Accuracy | ±0.001 mA ±0.2% of reading | ±0.1 mV ±0.1% of reading | ±0.2 mV ±0.3% of reading | ±0.4 mV ±0.3% of reading | ±1.0 mV ±0.3% of reading |
| Resolution | 0.3 µA | 40 µV | 80 µV | 160 µV | 384 µV |
| Logger |
| Operating Range | -20° to 70°C (-4° to 158°F) |
| Radio Power | 1 mW (0 dBm) |
| Transmission Range | Approximately 30.5 m (100 ft) line-of-sight |
| Wireless Data Standard | Bluetooth Low Energy (Bluetooth Smart) |
| Logging Rate | 1 second to 18 hours |
| Logging Modes | Fixed interval (normal, statistics) or burst |
| Memory Modes | Wrap when full or stop when full |
| Start Modes | Immediate, push button, date & time, or next interval |
| Stop Modes | When memory full, push button, date & time, or after a set logging period |
| Restart Mode | Push button |
| Time Accuracy | ±1 minute per month at 25°C (77°F) |
| Battery Type | Two AAA 1.5 V alkaline batteries, user replaceable |
| Battery Life | 1 year, typical with logging interval of 1 minute and Bluetooth Always On enabled; 2 years, typical with logging interval of 1 minute and Bluetooth Always On disabled; and temperatures between 0° and 50°C (32° and 122°F). Faster logging intervals and statistics sampling intervals, burst logging, remaining connected with the app, excessive downloads, and paging may impact battery life. |
| Memory | 4 MB (1.9 million measurements, maximum) |
| Full Memory Download Time | Approximately 4 to 15 minutes depending on the mobile device; may take longer the further the device is from the logger |
| LCD | LCD is visible from 0° to 50°C (32° to 122°F); the LCD may react slowly or go blank in temperatures outside this range |
| Size | 11.28 x 5.41 x 2.92 cm (4.44 x 2.13 x 1.15 in.) |
| Weight | 123 g (4.34 oz) |
| Environmental Rating | IP54 |
 | The CE Marking identifies this product as complying with all relevant directives in the European Union (EU). |
    | |