🔬 FNIRSI DS215H Plus – Portable 2-Channel Digital Oscilloscope with DDS Signal Generator

📦 Product Description

The FNIRSI DS215H Plus is a professional 2-in-1 handheld test instrument that combines a dual-channel digital oscilloscope and a DDS function signal generator in a compact, lightweight enclosure. Designed for electronics engineers, service technicians, educators, students, automation specialists and electronics enthusiasts, it delivers accurate measurements while remaining highly portable.

With a 50 MHz analog bandwidth, 250 MSa/s real-time sampling rate, and dual independent input channels, the DS215H Plus provides reliable waveform analysis for a wide variety of electronic applications. The integrated DDS signal generator supports 13 waveform types, allowing users to generate test signals without requiring an additional laboratory instrument.

A bright 3.5-inch IPS color display, built-in rechargeable lithium battery, waveform storage, screenshot capture and firmware upgrade support make the DS215H Plus an excellent solution for both laboratory and field work.

---

⭐ Key Features

✅ Dual-channel digital oscilloscope

✅ Built-in DDS function signal generator

✅ 50 MHz analog bandwidth

✅ 250 MSa/s real-time sampling rate

✅ Peak input protection up to ±400 V

✅ 13 built-in waveform types

✅ AC and DC input coupling

✅ Automatic measurement functions

✅ Waveform storage

✅ Screenshot saving

✅ USB Type-C charging

✅ Compact and lightweight handheld design

---

⚙️ Oscilloscope Functions

The DS215H Plus supports professional waveform analysis, including:

• Voltage measurement
• Frequency measurement
• Pulse width measurement
• RMS calculation
• Amplitude measurement
• Peak-to-Peak (Vpp)
• Maximum value
• Minimum value
• Average value
• Duty cycle measurement
• Period measurement

Trigger modes include:

• Auto Trigger
• Normal Trigger
• Single Trigger

Supported trigger types:

• Rising Edge
• Falling Edge

---

📡 Built-in DDS Signal Generator

The integrated DDS signal generator eliminates the need for a separate function generator.

It supports 13 waveform types with adjustable:

• Frequency
• Amplitude
• Duty Cycle

Ideal for:

• Circuit testing
• Embedded development
• Arduino & ESP32 projects
• Filter testing
• Amplifier adjustment
• Educational laboratories
• Electronics troubleshooting

---

🖥 High-Definition IPS Display

The built-in 3.5-inch IPS color display offers:

• 480 × 320 resolution
• Wide viewing angles
• Adjustable brightness
• Clear waveform visualization

---

🔋 Portable Operation

A built-in 1500 mAh rechargeable lithium battery provides approximately 4 hours of continuous operation.

Charging interface:

• USB Type-C (5 V / 1 A)

---

🧰 Applications

The FNIRSI DS215H Plus is suitable for:

• 🔧 Electronic repair
• ⚡ Power supply diagnostics
• 🤖 Arduino & ESP32 development
• 📡 IoT device debugging
• 🚗 Automotive electronics
• 🏭 Industrial automation
• 🎓 Education & training
• 🔬 Research laboratories
• 🛠 Service centers

---

📊 Technical Specifications

Specification	Value
Model	FNIRSI DS215H Plus
Device Type	Digital Oscilloscope + DDS Signal Generator
Channels	2
Analog Bandwidth	50 MHz
Real-Time Sampling Rate	250 MSa/s
Vertical Resolution	8-bit
Memory Depth	14 Mpts
Vertical Sensitivity	10 mV/div – 10 V/div
Time Base	20 ns/div – 20 s/div
Input Impedance	1 MΩ
Input Coupling	AC / DC
Probe Attenuation	1× / 10×
Maximum Input Voltage	±400 V Peak
Trigger Modes	Auto / Normal / Single
Trigger Types	Rising Edge / Falling Edge
Signal Generator	Built-in DDS
Waveform Types	13
Output Frequency	0–50 kHz
Frequency Resolution	1 Hz
Output Amplitude	0.1–3.0 V
Square Wave Duty Cycle	0–100%
Display	3.5" IPS Color LCD
Resolution	480 × 320
Power Supply	USB Type-C
Charging	5 V / 1 A
Battery	1500 mAh Rechargeable Li-Ion
Operating Time	Up to 4 hours
Firmware Upgrade	Supported
User Interface	Multi-language

---

📦 Package Contents

Depending on the selected version, the package may include:

• FNIRSI DS215H Plus
• Oscilloscope probe(s)
• Probe adapter
• Alligator clip test lead
• USB Type-C charging cable
• User manual

---

💡 Why Choose the FNIRSI DS215H Plus?

The FNIRSI DS215H Plus combines a professional dual-channel digital oscilloscope and a DDS function signal generator into one compact handheld device. With its 50 MHz bandwidth, 250 MSa/s sampling rate, extensive automatic measurement capabilities and portable battery-powered design, it is an ideal instrument for engineers, repair technicians, students, educators and electronics hobbyists. The integrated signal generator allows complete circuit testing without requiring additional laboratory equipment, making the DS215H Plus an efficient and cost-effective all-in-one solution.