| Integral Temperature Sensor Specifications: |
| Sensor Type | Thermistor |
| Scales | °C and °F |
| Temperature Measurement Range | -18 to +55°C (-0.4 to +131°F)* |
| Accuracy 0°C to +55°C (-32°F to +131°F) | <±0.3°C (±0.6°F)** |
| Accuracy (full range) | ±0.5°C (±0.9°F)** |
| Temperature Resolution | 0.1°C (0.2°F) |
| External Probes Specifications: |
| Number of External Channels | 4 |
| Sensor Type | Thermistor |
| Connector | 6-pin lumberg |
| Scales | °C and °F |
| Temperature Measurement Range | -40 to +125°C (-40 to +257°F) |
| System Accuracy 0 to +70°C (-32 to +158°F) - including probe | <±0.3°C (±0.6°F)** |
| System Accuracy -25 to 100°C (13 to +212°F) - including probe | ±0.5°C (±0.9°F)** |
| System Accuracy (Full Range) - including probe | ±1°C (±1.8°F) |
| Temperature Resolution | 0.1°C (0.2°F) |
| Common Specifications (All Models): |
| Hi Hi/Lo Lo Alarm (all channels excluding door switch) | Hi hi and lo lo alarms with alarm delay and fully selectable alarms |
| Alarm Delay 0-60 Minutes (all channels excluding door switch) | Delay is programmable for either h h or hi hi alarms or both independently |
| Door Switch (Optional) | Optional accessory RF521 or RF522 |
| Door Sensor Resolution | 5 seconds |
| Door Switch Alarms | Door Switch Alarms Continuous and Average (up to 60 minutes programmable) |
| Ambient Operating Temperature Range | -18 to +55°C (-0.4 to 131°F) - 10-90% RH - non-condensing* |
| Storage Temperature | -18 to +55°C (-0.4 to 131°F)* |
| Wireless Frequency | 2.4GHz Wi-Fi (IEEE 802.11b/g/n) |
| Wireless Security | WPA2 pre-shared key*** |
| Radio Range | Typically 20 metres indoors |
| Clock Accuracy | 20ppm (1 minute/month) at +25°C (+77°F) |
| Logging Memory | 140000 max records - depends on number of active channels |
| Log Rate | Programmable between 1 minute and 60 minutes |
| Channel Monitoring Rate | 1 minute |
| Wireless Radio Rate | Programmable between 5 minutes to 24 hours***** |
| Alarm/Active LEDs (Front) | Red - alarm / green - external power |
| Status LEDs (Side) | Red - Wi-Fi active / yellow - communications active / green - mains power connected |
| Case Material | Over moulded food safe clear polycarbonate with BioCote® antimicrobial protection |
| Environmental Protection | Case enclosure designed to meet IP65 BS EN 60529 |
| Battery Type | 4 x AA Alkaline or Energizer MAX lithium**** |
| Battery Life | Up to 1 year |
| Dimensions, l x h x d | 110 x 100 x 45mm |
| Weight | 300g |
| Mains PSU (Optional) | Optional mains PSU part no RF520 (100 - 240V AC 0.3A 50/60Hz) |
| Maximum Probe Lead Length | Not to exceed 30m |
| Warranty | 2 years |
|
| Notes: |
| *Temperature and storage range with Energizer lithium L91 cells is expanded to -30 to +60°C (-22°F to +140°F) |
| **When used with a Comark probe |
| ***Other Wi-Fi security options will be provided by firmware update |
| ****Use Energizer MAX L91 for improved battery life in all applications but especially recommended for use in low temperature applications |
| *****The Wi-Fi rate should be set for 4 hours or greater for best battery life, this will not affect alarm notifications |