Beijing Chengan Technology Co., Ltd.

Geotechnical & Structural Health Monitoring Instruments

Product
Catalogue

Beijing Chengan is a National High-tech Enterprise and ISO9001 / ISO14001 / ISO45001 certified leader in infrastructure safety monitoring — combining sensor technology, BeiDou satellite, IoT and information technology for bridges, slopes, dams, tunnels, mines and foundations. We provide equipment R&D & manufacturing, system integration and engineering delivery.

Product 1 — CA-GNSS-PRO Monitoring Receiver

High-Precision GNSS Surface Displacement Monitoring

All-in-one multi-constellation GNSS displacement monitoring receiver with BeiDou-3 (BDS-3) support. High precision, ultra-low power (<2W), solar-ready. Outputs surface displacement, acceleration & tilt.

Specification	CA-GNSS-PRO
Satellite systems	GPS (L1C/A,L2C) · GLONASS (L1OF,L2OF) · Galileo (E1B/C,E5b) · BeiDou BDS-3 (B1I,B2I)
Displacement accuracy	H: ±(2.5mm+0.5ppm·D); V: ±(5mm+0.5ppm·D) RMS
RTK accuracy	H: ±1.0cm+1ppm; V: ±2.0cm+1ppm
Differential / Rate	RTCM 3.2 / 5Hz; on-device, server & RTK solving; 10-min static
Integrated sensing	MEMS accelerometer & tilt; powers/supplies RS485 sensors
Comms / Power	4G · LoRa · RS485 (+WiFi/BT/NB-IoT opt.); <2W, 9–15V, solar-ready
Storage	32GB (exp. 512GB); >2yr of 15s raw data
Enclosure / Temp	IP68, Mg-Al alloy; -30°C~+65°C (store -40~+85°C)
Mounting	5/8" anti-theft locking nut

Applications: Slope & landslide · Dam & reservoir safety · Bridge SHM · Tunnel · Mining pit & tailings dam · Foundation & settlement · High-speed rail & subgrade · Urban lifeline

Product 2 — Vibrating Wire Strain Gauges

CA-BM150 (Surface) · CA-NM150 (Embedment) — identical specs, different mounting

Field-proven vibrating wire strain gauges for long-term automated structural health monitoring. Imported alloy steel wire, temperature-compensated, built-in DS18B20 sensor with unique serial ID. Two models, identical electrical specs.

Specification	CA-BM150 / CA-NM150
Measurement range	±1500 με
Accuracy / Sensitivity	≤0.1% F.S. / 0.5 με
Gauge length / Temp	150 mm; DS18B20, measurement -20~125°C
Operating temperature	-20°C ~ +70°C
Rating / Cable	IP68; 4-core shielded, cable-length independent
CA-BM150 (Surface)	Expansion bolts · chemical anchor · adhesive (short-term)
CA-NM150 (Embedment)	Cast-in-place inside concrete / foundations

Applications: Bridges & box girders · Subways & tunnels · Railways · Airports · Dams · Wharves · Mass concrete · Building foundations

About Chengan

Specialties: Bridge health monitoring · Slope deformation monitoring · Tailings dam online monitoring · Reservoir & dam safety · Building & structure monitoring · Foundation pit automation.
Certifications: ISO9001 · ISO14001 · ISO45001 · National High-tech Enterprise. Software copyrights & patents in GNSS positioning, hydrostatic leveling and slope radar.
Vision: To become an international, group-style supplier of safety monitoring products — one-stop from solution design to project delivery.

Beijing Chengan Technology Co., Ltd.
📧 Email: sales@shmiot.com
💬 WeChat: yk84628756 — download WeChat app to chat
📌 Quote within 24 hours · OEM/Branding available