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The Milesight external probes and accessories are designed for use with compatible Milesight TS301, TS302, TS201 and TS602 LoRaWAN sensors, providing reliable external sensing for temperature monitoring and contact-status applications.
Depending on the selected probe, the product range includes PT100 temperature probes, a DS18B20 temperature probe, a TH temperature/humidity probe, and the SS21 magnetic contact switch.
⚠️ Important: The SS21 Magnetic Contact Switch (PN:03-150) is a door/contact sensor and does NOT measure temperature. Please select one of the temperature probes if temperature measurement is required.
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🌡️ Temperature Probes
PT100 A-Class – SP11 PN:A05-500-150
Temperature range: -50°C to +500°C
High-accuracy PT100 probe designed for demanding industrial temperature monitoring applications.
Applicable Products:TS301/TS302/TS602
PT100 B-Class – SP11 PN:B05-125-200
Temperature range: -40°C to +125°C
Reliable PT100 temperature probe suitable for general-purpose temperature monitoring.
Applicable Products:TS301/TS302/TS602
PT100 Food-Grade – SP11 PN:AF10-125-150A
Temperature range: -40°C to +125°C
Food-grade probe suitable for applications requiring hygienic temperature monitoring, including food and cold-chain environments.
Applicable Products:TS301/TS302/TS602
Temperature range: -40°C to +125°C
Digital temperature probe designed for applications requiring independent temperature measurement and calibration.
Applicable Products :TS201/TS602/TS301 V2/TS302 V2
PT100 Low-Temperature – SP11 PN:A03-050-150
Temperature range: -200°C to +50°C
Designed for low-temperature applications where monitoring temperatures below the standard PT100 operating range is required.
Applicable Products:TS301/TS302/TS602
External temperature/humidity probe for compatible Milesight sensors.
Applicable Products:TS602/TS301 V2/TS302 V2
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🚪 SS21 Magnetic Contact Switch
SS21 Magnetic Contact Switch – PN:03-150
Applicable Products:TS301/TS302
The SS21 is designed for door, window, cabinet and access-status monitoring.
It detects whether a door or other opening is open or closed using a magnetic contact.
⚠️ This is NOT a temperature sensor.
The SS21 does not provide temperature measurements. When connected to a compatible Milesight sensor, the status is reported as Open / Closed.
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💡 Key Features
📶 LoRaWAN Integration – Designed for use with compatible Milesight LoRaWAN sensor platforms.
🌡️ Multiple Temperature Probe Options – PT100, DS18B20 and TH probes for different temperature-monitoring requirements.
❄️ Wide Temperature Ranges – Options available for standard, food-grade, industrial and very-low-temperature applications.
🚪 Contact Monitoring – The SS21 provides reliable open/closed status detection for doors, cabinets and other access points.
🏭 Industrial Applications – Suitable for industrial, commercial and environmental monitoring.
🔋 Low-Power Monitoring – Designed for integration with Milesight low-power LoRaWAN sensor solutions.
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🛠️ Applications
Temperature Monitoring
❄️ Cold Chain Monitoring – Monitor temperature in refrigerated and frozen environments.
🍎 Food & Beverage – Monitor storage and processing temperatures.
💊 Pharmaceutical & Medical Storage – Monitor temperature-sensitive products.
🏭 Industrial Process Monitoring – Monitor equipment and process temperatures.
🧪 Laboratories & Environmental Monitoring – Reliable external temperature measurement.
Contact Monitoring
🚪 Door & Window Monitoring – Detect opening and closing events.
🔐 Security & Access Monitoring – Monitor cabinets, technical rooms and restricted areas.
🏢 Smart Buildings – Integrate door/contact status into building monitoring systems.
🧊 Refrigerator & Cold Room Monitoring – Monitor access to refrigerated storage areas.
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⚠️ Compatibility Note
Probe compatibility depends on the specific Milesight sensor model and hardware version. Please check the compatibility requirements of your TS301/TS302/TS201/TS602 before ordering.
Important: The SS21 PN:03-150 is a magnetic contact switch only and does not measure temperature. For temperature measurement, select the appropriate PT100, DS18B20 or TH probe from the available options.
- Probe Type: PT100 Temperature Sensor
- Temperature Measurement Range (PT100): -50°C to 200°C
- Accuracy: ±0.3°C (at 0°C)
- Cable Length: 1.5m (for PT100 Food-Grade & PT100 A-Class) 2m (for PT100 B-Class)
- Compatible Sensors: Milesight TS301/TS302/TS201/TS602 LoRaWAN® Sensors
- Ingress Protection: IP67 (Outdoor Use)
- Operating Temperature: -40°C to 85°C
- Installation: Surface-mounted or integrated within equipment