Audited Supplier
| Power supply | AC 85V~265V or DC 24V~110V (optional) |
| Power consumption | ≤5W(actual power consumption is related to the numbers of channel) |
| Numbers of channel | 1~12 channel (analog input:1~8 channel, pulse input 2-4 channel optional) |
| Input signal (Refer to the module selection table below: Function description) | Thermocouple: K,E,R,B,N,T,E,J,S, WRE5-26, WRE-25 |
| Thermal resistor: Pt100,Pt1000 | |
| Current: 4-20mA, 0-10mA | |
| Voltage: 0-5V,0~10V, ±20mV, ±100mV | |
| Switch input | 2~4 channel(optional) could collect switch IO current status,Switch IO frequency(0~15KHz),switch IO accumulative number, Maximum is 4,294,967,295 |
| Channel isolation voltage | 420V |
| Recording frequency | 1~9999s self-setup |
| Recording memory(built-in 8G TF disk) | Over 2000 days (12 channel, recording interval per minute) |
| Recording mode | Cycle record |
| Alarm type | Upper and lower alarm output,each channel with 4 modes(ultimate upper limit value,upper limit value,lower limit value,ultimate limit value) |
| Relay | 2~4 channel normal open relay DC 30V/1A |
| Wired communication | Standard RS485,MODBUS RTU communication protocol; Ethernet MODBUS TCP protocol |
| Wireless communication | 4G/WIF/LORA/Thread (Refer to the product selection table) |
| Operation environment | -20ºC~60ºC,0~95%RH |
| Body material | Fireproof ABS |
| Product dimension | 96*96*102mm |
| Installation opening hole size | 91*91mm |
| Model | Version type | Function configuration |
| TP740-A | RS485 | 4 channel universal input+2 channel switch/pulse sampling input+ 2 channel relay output |
| TP740-A2 | RS485 | 8 channel universal input+4 channel switch/pulse sampling input+ 4 channel relay output |
| TP740VE-A | RS485/Ethernet | 4 channel universal input+2 channel switch/pulse sampling input+ 2 channel relay output |
| TP740VE-A2 | RS485/Ethernet | 8 channel universal input+4 channel switch/pulse sampling input+ 4 channel relay output |
| TP740VL-A | RS485/LoRA | 4 channel universal input+2 channel switch/pulse sampling input+ 2 channel relay output |
| TP740VL-A2 | RS485/LoRA | 8 channel universal input+4 channel switch/pulse sampling input+ 4 channel relay output |
| TP740V3-A | RS485/WiFi | 4 channel universal input+2 channel switch/pulse sampling input+ 2 channel relay output |
| TP740V3-A2 | RS485/WiFi | 8 channel universal input+4 channel switch/pulse sampling input+ 4 channel relay output |
| TP740V4-A | RS485/4G | 4 channel universal input+2 channel switch/pulse sampling input+ 2 channel relay output |
| TP740V4-A2 | RS485/4G | 8 channel universal input+4 channel switch/pulse sampling input+ 4 channel relay output |
| TP740VLE-A | RS485/Ethernet/LoRA | 4 channel universal input+2 channel switch/pulse sampling input+ 2 channel relay output |
| TP740VLE-A2 | RS485/Ethernet/LoRA | 8 channel universal input+4 channel switch/pulse sampling input+ 4 channel relay output |
| TP740V3E-A | RS485/Ethernet/WiFi | 4 channel universal input+2 channel switch/pulse sampling input+ 2 channel relay output |
| TP740V3E-A2 | RS485/Ethernet/WiFi | 8 channel universal input+4 channel switch/pulse sampling input+ 4 channel relay output |
| TP740V4E-A | RS485/Ethernet/4G | 4 channel universal input+2 channel switch/pulse sampling input+ 2 channel relay output |
| TP740V4E-A2 | RS485/Ethernet/4G | 8 channel universal input+4 channel switch/pulse sampling input+ 4 channel relay output |
| Input Type | Measuring range (indication range) | Measurement accuracy (reference error, absolute error) | Digital display resolution | ||
| DC voltage | 0-10V | -0.5V to+11.000V | 0.01% F.S. ±0.002V | Maximum 6 digits | |
| 0-5V | -0.5V to+5.500V | 0.01% F.S. ±0.002V | Maximum 6 digits | ||
| ±100mV | -110.0mV to+110.0mV | 0.005% F.S. ±0.005mV | Maximum 6 digits | ||
| ±20mV | -21.0mV to+21.0mV | 0.005% F.S. ±0.005mV | Maximum 6 digits | ||
| DC Current | 4-20mA | +3mA to+21.00mA | 0.01% F.S. ±0.001mA | Maximum 6 digits | |
| 0-20mA | 0.00mA to+21.00mA | 0.01% F.S. ±0.001mA | Maximum 6 digits | ||
| Measurement accuracy (relative error) | Maximum 6 digits | ||||
| Thermocouple | K | -60ºC to+1372ºC | ±(0.1% rdg. +1ºC) | Maximum 6 digits | |
| J | -200ºC to+1200ºC | ±(0.1%rdg.+1.0ºC)≤0ºC±(0.15%rdg.+1.0ºC) | Maximum 6 digits | ||
| E | -200ºC to+1000ºC | ±(0.1%rdg.+1.0ºC)≤0ºC±(0.15%rdg.+0.5ºC) | Maximum 6 digits | ||
| T | -200ºC to+400ºC | ±(0.1%rdg.+1.0ºC)≤-30ºC±(0.15%rdg.+0.5ºC) | Maximum 6 digits | ||
| N | -200ºC to+1300ºC | ±(0.1%rdg.+1.0ºC)≤0ºC±(0.3%rdg.+0.7ºC) | Maximum 6 digits | ||
| W | +1500ºC to+2315ºC | ±(0.05% rdg. +1.5ºC) | Maximum 6 digits | ||
| 0ºC to+1500ºC | ±(0.05% rdg. +1.0ºC) | Maximum 6 digits | |||
| R | +800ºC to+1768ºC | ±(0.05% rdg. +1.5ºC) | Maximum 6 digits | ||
| +400ºC to+800ºC | ±(0.2% rdg. +2.0ºC) | Maximum 6 digits | |||
| S | +800ºC to+1768ºC | ±(0.05% rdg. +1.5ºC) | Maximum 6 digits | ||
| +400ºC to+800ºC | ±(0.2% rdg. +2.0ºC) | Maximum 6 digits | |||
| B | +800ºC to+1820ºC | ±(0.05% rdg. +1.5ºC) | Maximum 6 digits | ||
| +400ºC to+800ºC | ±(0.2% rdg. +2.0ºC) | Maximum 6 digits | |||
| Thermal resistor | Pt100 | -200ºC to+660ºC | ±(0.02% rdg. +0.3ºC) | Maximum 6 digits | |
| Cu50 | -50ºC to+150ºC | ±(0.02% rdg. +0.3ºC) | Maximum 6 digits | ||
| PT1000 | -200ºC to+300ºC | ±(0.05% rdg. +0.2ºC) | Maximum 6 digits | ||
| Warm-up time | More than 30 minutes | ||||
| Thermocouple Measurements | Including cold junction compensation accuracy | ||||
| Standard operating conditions (accuracy as above) | Temperature 25±3ºC, humidity 55±10%RH | ||||
| Environmental adaptability | Operating temperature | -20ºC to +60ºC | |||
| Operating humidity | 0 to 95% RH (no condensation) | ||||
Shenzhen Toprie Electronics Co., Ltd. is a leading high-tech enterprise specializing in the development and manufacturing of environmental monitoring and data acquisition solutions.
Established in 2009, our company operates a state-of-the-art facility spanning over 3,000 square meters, equipped with six advanced production lines and a highly skilled team committed to research, design, quality control, and precision manufacturing.
Core Business
We provide a comprehensive portfolio of cutting-edge products, including:
Multi-Channel Data Loggers & Paperless Recorders
Humidity & Temperature Sensors and Loggers
Gas Detectors
Multi-Parameter Cleanliness Analyzers
Smart Wireless Pressure & Temperature Sensors
Smart Water Meters
Water Level Meters, Ultrasonic Level Meters & Radar Level Meters
Multi-Channel Data Acquisition Modules (DAS & DAQ)
Smart IoT Gateways & Edge Computing Gateways, RTU, and DTU
SCADA Systems, HMI & HDMI Solutions
Thermal Imaging Cameras & Infrared Temperature Sensors
Electric, Power, and Energy Meters / Power Quality Analyzers
Comprehensive IoT Solutions
Quality & Customization
With advanced testing facilities, state-of-the-art manufacturing technologies, and a rigorous quality assurance system, we ensure that every product meets the highest industry standards.
In addition to our proprietary product line, we offer OEM and ODM services, providing customized solutions tailored to our clients' specific requirements, including personalized branding.
Our Commitment
Driven by integrity, innovation, and excellence, we are dedicated to delivering high-quality products and exceptional customer service. We welcome you to visit our company or contact us to explore potential collaboration opportunities.
Q: Are you a factory/manufacturer?
A: Yes, we are a professional manufacturer of data loggers, humidity & temperature sensors, gas detectors, pressure sensors, water level meters, liquid level transmitters, data acquisition modules, IoT gateways, thermal imaging cameras, power & energy meters, and more.
Q: Can I customize my logo and communication methods?
A: Yes, logo customization is available with a small MOQ. We support multiple communication methods, including GPRS, 4G, Wi-Fi, LoRa, and LoRaWAN. Please inform us in advance.
Q: What is your lead time? How long for custom instruments?
A: Standard products ship within 3-5 days after payment. Custom orders depend on quantity and requirements.
Q: What payment methods do you accept?
A: We accept T/T (bank transfer), Western Union, PayPal, and more.
Q: What packaging and shipping methods do you use?
A:
Standard carton packaging
Shipping via express (door-to-door), air, or sea as per customer requirements.
Q: What is your after-sales service policy?
A: We offer a 12-month warranty and lifetime maintenance. Our professional support team provides one-on-one assistance and responds within 24 hours to resolve technical issues.
For more inquiries, feel free to contact us!
