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- Lastest ESP32 Version: REV1
- Connectivity: WIFI & Bluetooth
- Memory: 4MB Flash4MB PSRAM
- Lithium battery interface, 500mA Max charging current
- Onboard TF CARD Slot
- Default firmware: Latest Micropython firmware
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- ESP32 VCC range:2.2-3.6 V
- VBAT: direct to battery
- VCC: output of regulator 3.3V/600mA up to 250 mA during RF transmissions
- WiFi And Bluetooth Module
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- Non-contact measurement, high safety
- Multiple ranges for various measurement scenarios
- Compatible with 3V3/5V micro-controller
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- LoRa Spread Spectrum modulation technology
- Constant RF power output at + 20dBm-100mW voltage change
- High sensitivity: down to -148dBm
- Half-duplex SPI communication
- Programmable bit rates up to 300kbps
- Supports FSK, GFSK, MSK, GMSK, LoRa and OOK modulation modes
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- power supply: DC 7-30 V
- Input Voltage: 0-10V
- Output current: 4-20mA
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- Compatible with 3.3v or 5v I/O Arduino Board.
- Frequency Band: 433 MHZ (Pre-configure in factory)
- Low power consumption
- Compatible with Arduino Leonardo, Uno, Mega2560, DUE
- External Antenna via SMA Jack
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- 168 dB maximum link budget.
- +20 dBm – 100 mW constant RF output vs.
- +14 dBm high-efficiency PA.
- Programmable bit rate up to 300 kbps.
- High sensitivity: down to -148 dBm.
- Bullet-proof front end: IIP3 = -12.5 dBm.
- Excellent blocking immunity.
- Low RX current of 10.3 mA, 200 nA register retention.
- Fully integrated synthesizer with a resolution of 61 Hz.
- FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
- Built-in bit synchronizer for clock recovery.
- Preamble detection.
- 127 dB Dynamic Range RSSI.
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- Supply voltage 3.7V – 5V
- Mini and compact size
- Output power +20.8 dBm at 3.3V
- Sensitivity-116.5 dBm ~ -136 dBm
- ModulationLoRa, (G)FSK, (G)MSK, BPSK
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- Communication distance: 15KM
- Sensitivity: down to -148dBm
- Programmable bit rates: up to 300kbps
- RSSI dynamic range: 127dB
- Wireless frequency: 433MHz
- Working voltage: 1.8-3.7v
- Working temperature: -40-+80 ℃
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- Model No.:E32-900T30D
- Port Number:1
- Interface Type: CDMA
- Working Frequency Range:862 to 915 MHz
- Operating Distance Range (Meter):8000
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- Input Voltage DC 5V – 3A
- Processor Raspberry Pi 4 (Broadcom BCM2711, Quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz)
- RAM: 4GB
- Storage: 64GB MicroSD Card
- Wi-Fi 2.4 GHz and 5.0 GHz IEEE 802.11ac wireless
- Bluetooth 5.0, BLE
- LoRaWAN Supports Class A, C
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- input current (RMS): 5A.
- Max current: 15A.
- Work temperature:-25℃~+70℃.
- Storage temperature:-30℃~+90℃.
- Work voltage:660V.
- Frequency range:50Hz-1KHz.
- Dielectric strength:3.5KV 50Hz 1min
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- Closed-loop current transducer using the Hall effect technology
- Primary nominal current of 25A
- 0.5% accuracy
- The primary current measuring range is ±36A
- The supply voltage is ±15V
- The conversion ratio is 1-2-3-4-5: 1000
- Secondary nominal RMS current is 25mA
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- Smart cities.
- Retail store sensors.
- Asset tracking.
- Max. Operating Voltage: 3.7.
- RF output: +22dBm.
- Programmable bit rate: 300kbps(FSK)/62.5K(LORA).
- Excellent blocking immunity.
- Low RX current: 8mA.
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- min Supply voltage: 1.8.
- Max. Operating voltage: 3.7
- Min. Operational temperature range -20
- Max. Operational temperature: +70
- Max. RF Input Level:+10 d
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- Conductivity range: 100 µS/cm to 200 mS/cm
- Cell constant4): typical 0.86 cm-1
- Nominal resistance: 1000 Ω at 0 °C
- Measurement frequency range: 100 Hz to 10 kHz
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