For HVAC troubleshooting, equipment programming, building commissioning, performance monitoring, etc.
Measures and transmits temperature, relative humidity, and light intensity data wirelessly.
IMPORTANT INFORMATION: Requires the HOBOconnect app and a compatible mobile device or Windows computer. System requirements for the app can be found at the bottom of the HOBOconnect software page.
Makes it easy to monitor four measurements with one versatile logger. The kit includes the HOBO MX1104 logger with integrated sensors for temperature, humidity, and light, plus an external temperature sensor with a 6' cable.
This is a great addition to your toolbox for troubleshooting, equipment scheduling, building commissioning, HVAC performance monitoring, and more! The external input provides the flexibility to connect a wide range of sensors, expanding monitoring capabilities.
The self-contained 4-channel logger leverages Bluetooth technology for easy wireless configuration and data offload using Onset's free HOBOconnect app for mobile devices and Windows computers. The 100' wireless range is especially handy when deploying these loggers in hard-to-access locations. And, if used with the MX Gateway, you can access data in Onset's cloud-based HOBOlink software - from anywhere!
| Specification | Details |
|---|---|
| Measurement Input Frequency | 120 Hz (120 pulses per second) |
| Measurement Range | 0-65,533 pulses per logging interval |
| Resolution | 1 pulse |
| Lockout Time | 45 µs ±10% |
| Recommended Input Type | Electronic solid state switch closure or CMOS-level digital output (example: FET, opto-FET or open collector) |
| Preferred Switch State* | Active low input |
| Edge Detection | Falling edge, Schmitt Trigger buffer (logic levels: low =2.7 V) |
| Minimum Pulse Width | 1 ms |
| Input/Output Impedance | 100 KΩ |
| Open Circuit Input Voltage | 3.3 V |
| Maximum Input Voltage | 3.6 V |
| User Connection | 24 AWG wires, 2 leads: white(+), black(-) |
| Operating Temperature Range | -25° to 60°C (-13° to 140°F) with rechargeable batteries -40 to 70°C (-40 to 158°F) with lithium batteries |
| Radio Power | 12.6 mW (+11 dBm) non-adjustable |
| Transmission Range | Reliable connection to 457.2 m (1,500 ft) line of sight at 1.8 m (6 ft) high Reliable connection to 609.6 m (2,000 ft) line of sight at 3 m (10 ft) high |
| Wireless Data Standard | IEEE 802.15.4 |
| Radio Operating Frequencies | RXW-UCC-900 and RXW-UCD-900: 904-924 MHz RXW-UCC-868 and RXW-UCD-868: 866.5 MHz RXW-UCC-921 and RXW-UCD-921: 921 MHz RXW-UCC-922 and RXW-UCD-922: 916-924 MHz |
| Modulation Employed | OQPSK (Offset Quadrature Phase Shift Keying) |
| Data Rate | Up to 250 kbps, non-adjustable |
| Duty Cycle | <1% |
| Maximum Number of Motes | Up to 50 wireless sensors or 336 data channels per one HOBO RX station |
| Logging Rate | 1 minute to 18 hours |
| Number of Channels | 2 |
| Battery Type/Power Source | Two AA 1.2 V rechargeable NiMH batteries powered by built-in solar panel or two AA 1.5 V lithium batteries for operating conditions of -40 to 70°C (-40 to 158°F) |
| Battery Life | With NiMH batteries: Typical 3-5 years when operated in the temperature range -20° to 40°C (-4°F to 104°F) and positioned toward the sun (see Deployment and Mounting), operation outside this range will reduce the battery service life With lithium batteries: 1 year, typical use |
| Memory | 16 MB |
| Dimensions | Cable length: 6.5 m (21.3 ft.) Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches) |
| Weight | Cable: 250 g (9 oz) Mote: 223 g (7.87 oz) |
| Materials | Mote: PCPBT, silicone rubber seal |
| Environmental Rating | Mote: IP67, NEMA 6 |
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