ATW002 Bracelet Passive Temperature Sensor

Application: Temperature monitoring of power switchgear (high-current cabinets such as main transformer feeder cabinets and interconnection cabinets) Moving contact points on circuit breakers, isolating switches, and similar equipment (contacts, connectors, etc.) Connection points of current transformers (CTs) inside cabinets (to prevent overheating caused by poor contact) Critical points in power equipment such as busbars and cable joints Applications requiring early detection of potential equipment overheating to prevent failures caused by abnormal temperatures

Inquiry

Product Details

Application:

Temperature monitoring of power switchgear (high-current cabinets such as main transformer feeder cabinets and interconnection cabinets)
Moving contact points on circuit breakers, isolating switches, and similar equipment (contacts, connectors, etc.)
Connection points of current transformers (CTs) inside cabinets (to prevent overheating caused by poor contact)
Critical points in power equipment such as busbars and cable joints
Applications requiring early detection of potential equipment overheating to prevent failures caused by abnormal temperatures

Functions

Real-time Temperature Monitoring: Temperature signals are collected every 10 seconds to monitor equipment node temperatures in real time
Active Alarms: Triggers an alarm when temperature changes exceed 2°C (alarm threshold is configurable)
Power Supply Voltage Self-Check: The sensor continuously monitors its own power supply voltage to ensure proper operation
CT Inductive Power Supply: Power is supplied via an induced current (start-up current: 5A), requiring no batteries or external power source
Wireless Remote Transmission: 433MHz RF, with a transmission range of up to 300 meters in open areas
Easy Installation: Strap-on installation requires no drilling and does not alter the device’s insulation structure
High-Temperature-Resistant Materials: The housing and straps are made of high-temperature, flame-retardant silicone; IP50 protection rating

Parameters

Temperature Measurement Range	-40°C to +125°C (customizable up to 200°C)
Resolution	0.1℃
Measurement Accuracy	±1℃
Sampling interval:	Default: 10 seconds (customizable)
Reporting interval:	Default: 2 minutes (customizable)
Alarm threshold:	Default: 2°C (customizable)
RF frequency:	433 MHz
Transmission range:	300 meters (open area)
Power supply:	CT Inductive Power Extraction (Inductive Current ≥ 5A)
Service life:	10 years
Installation method:	Strap-on design (secured with nylon cable ties and rubber rings)
Housing/strap material:	High-temperature flame-retardant silicone
Protection rating:	IP50
Dimensions:	44.5 mm × 37 mm × 24.5 mm (strap length: 360 mm)
Weight	About 50 g

Dimension

Logic diagram

ATW001 Bracelet with Active Temperature Sensor

ATW003 Miniature Passive Temperature Sensor

ATW002 Bracelet Passive Temperature Sensor

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