Key Features

• ● Supports voltage (0–24V), current (0–24mA), frequency (0–9999Hz), resistance (0–390Ω), and thermocouples
• ● High precision: ±0.02% typical for voltage/current modes
• ● 2.4” TFT LCD screen with real-time waveform and data tracking
• ● Built-in 3000mAh rechargeable battery (USB-C charging)
• ● Modbus RTU support via RS485 communication
• ● Programmable presets and historical data logging

Technical Specifications

• ● Voltage output: 0–24V, 0.001V resolution, ±(0.02%+0.003) accuracy
• ● Current output: 0–24mA, 0.001mA resolution, ±(0.02%+0.003) accuracy
• ● Frequency: 0–9999Hz, 5-digit resolution, ±2% accuracy
• ● Resistance simulation: 0–390Ω, 0.1Ω resolution
• ● Supported thermocouples: K, J, T, E, R, S, B, N, WRe3/25, WRe3/26
• ● Thermocouple range: up to 2320°C (depending on type)
• ● Display: 2.4” TFT LCD (320×240)
• ● Dimensions: 112 × 82 × 27 mm; Weight: 167 g

Package Contents

• ● 1× FNIRSI SG-004A signal generator
• ● 4× Alligator clip leads
• ● 1× USB power adapter
• ● 1× USB-C charging cable
• ● 1× User manual
• Note: Protective carrying case is not included.